#! /bin/sh # # If these # comments don't work, trim them. Don't worry about any other # shell scripts, Configure will trim # comments from them for you. # # (If you are trying to port this package to a machine without sh, # I would suggest you have a look at the prototypical config_h.SH file # and edit it to reflect your system. Some packages may include samples # of config.h for certain machines, so you might look for one of those.) # # Yes, you may rip this off to use in other distribution packages. This # script belongs to the public domain and cannot be copyrighted. # # (Note: this Configure script was generated automatically. Rather than # working with this copy of Configure, you may wish to get metaconfig. # The dist-3.0 package (which contains metaconfig) was posted in # comp.sources.misc and is available on CPAN under authors/id/RAM so # you may fetch it yourself from your nearest archive site.) # # $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $ # # Generated on Wed Oct 14 17:00:29 EET DST 1998 [metaconfig 3.0 PL70] # (with additional metaconfig patches by jhi@iki.fi) cat >/tmp/c1$$ </tmp/c2$$ </dev/null` test "$me" || me=$0 ;; esac : Proper separator for the PATH environment variable p_=: : On OS/2 this directory should exist if this is not floppy only system :-] if test -d c:/. ; then if test -n "$OS2_SHELL"; then p_=\; PATH=`cmd /c "echo %PATH%" | tr '\\\\' / ` OS2_SHELL=`cmd /c "echo %OS2_SHELL%" | tr '\\\\' / | tr '[A-Z]' '[a-z]'` elif test -n "$DJGPP"; then p_=\; fi fi : Proper PATH setting paths='/bin /usr/bin /usr/local/bin /usr/ucb /usr/local /usr/lbin' paths="$paths /opt/bin /opt/local/bin /opt/local /opt/lbin" paths="$paths /usr/5bin /etc /usr/gnu/bin /usr/new /usr/new/bin /usr/nbin" paths="$paths /opt/gnu/bin /opt/new /opt/new/bin /opt/nbin" paths="$paths /sys5.3/bin /sys5.3/usr/bin /bsd4.3/bin /bsd4.3/usr/ucb" paths="$paths /bsd4.3/usr/bin /usr/bsd /bsd43/bin /usr/ccs/bin" paths="$paths /etc /usr/lib /usr/ucblib /lib /usr/ccs/lib" paths="$paths /sbin /usr/sbin /usr/libexec" for p in $paths do case "$p_$PATH$p_" in *$p_$p$p_*) ;; *) test -d $p && PATH=$PATH$p_$p ;; esac done PATH=.$p_$PATH export PATH : shall we be using ksh? inksh='' needksh='' avoidksh='' newsh=/bin/ksh changesh='' if (PATH=.; alias -x) >/dev/null 2>&1; then inksh=true fi if test -f /hp-ux -a -f /bin/ksh; then needksh='to avoid sh bug in "here document" expansion' fi if test -d /usr/lpp -a -f /usr/bin/bsh -a -f /usr/bin/uname; then if test X`/usr/bin/uname -v` = X4; then avoidksh="to avoid AIX 4's /bin/sh" newsh=/usr/bin/bsh fi fi case "$inksh/$needksh" in /[a-z]*) ENV='' changesh=true reason="$needksh" ;; esac case "$inksh/$avoidksh" in true/[a-z]*) changesh=true reason="$avoidksh" ;; esac case "$inksh/$needksh-$avoidksh-" in true/--) cat <&2 $me: Fatal Error: I can't find a Bourne Shell anywhere. 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Versions 5.003_02 and later of perl allow alternate IO mechanisms via a "PerlIO" abstraction, but the stdio mechanism is still the default. This abstraction layer can use AT&T's sfio (if you already have sfio installed) or regular stdio. Using PerlIO with sfio may cause problems with some extension modules. Using PerlIO with stdio is safe, but it is slower than plain stdio and therefore is not the default. If this doesn't make any sense to you, just accept the default 'n'. EOM case "$useperlio" in $define|true|[yY]*) dflt='y';; *) dflt='n';; esac rp='Use the experimental PerlIO abstraction layer?' . ./myread case "$ans" in y|Y) val="$define" ;; *) echo "Ok, doing things the stdio way" val="$undef" ;; esac set useperlio eval $setvar : Check how to convert floats to strings. if test "X$d_Gconvert" = X; then echo " " echo "Checking for an efficient way to convert floats to strings." $cat >try.c <<'EOP' #ifdef TRY_gconvert #define Gconvert(x,n,t,b) gconvert((x),(n),(t),(b)) char *myname = "gconvert"; #endif #ifdef TRY_gcvt #define Gconvert(x,n,t,b) gcvt((x),(n),(b)) char *myname = "gcvt"; #endif #ifdef TRY_sprintf #define Gconvert(x,n,t,b) sprintf((b),"%.*g",(n),(x)) char *myname = "sprintf"; #endif #include int checkit(expect, got) char *expect; char *got; { if (strcmp(expect, got)) { printf("%s oddity: Expected %s, got %s\n", myname, expect, got); exit(1); } } int main() { char buf[64]; buf[63] = '\0'; /* This must be 1st test on (which?) platform */ /* Alan Burlison */ Gconvert(0.1, 8, 0, buf); checkit("0.1", buf); Gconvert(1.0, 8, 0, buf); checkit("1", buf); Gconvert(0.0, 8, 0, buf); checkit("0", buf); Gconvert(-1.0, 8, 0, buf); checkit("-1", buf); /* Some Linux gcvt's give 1.e+5 here. */ Gconvert(100000.0, 8, 0, buf); checkit("100000", buf); /* Some Linux gcvt's give -1.e+5 here. */ Gconvert(-100000.0, 8, 0, buf); checkit("-100000", buf); exit(0); } EOP case "$d_Gconvert" in gconvert*) xxx_list='gconvert gcvt sprintf' ;; gcvt*) xxx_list='gcvt gconvert sprintf' ;; sprintf*) xxx_list='sprintf gconvert gcvt' ;; *) xxx_list='gconvert gcvt sprintf' ;; esac for xxx_convert in $xxx_list; do echo "Trying $xxx_convert" $rm -f try try$_o set try -DTRY_$xxx_convert if eval $compile; then echo "$xxx_convert" found. >&4 if ./try; then echo "I'll use $xxx_convert to convert floats into a string." >&4 break; else echo "...But $xxx_convert didn't work as I expected." fi else echo "$xxx_convert NOT found." >&4 fi done case "$xxx_convert" in gconvert) d_Gconvert='gconvert((x),(n),(t),(b))' ;; gcvt) d_Gconvert='gcvt((x),(n),(b))' ;; *) d_Gconvert='sprintf((b),"%.*g",(n),(x))' ;; esac fi : Initialize h_fcntl h_fcntl=false : Initialize h_sysfile h_sysfile=false : access call always available on UNIX set access d_access eval $inlibc : locate the flags for 'access()' case "$d_access" in "$define") echo " " $cat >access.c <<'EOCP' #include #ifdef I_FCNTL #include #endif #ifdef I_SYS_FILE #include #endif #ifdef I_UNISTD #include #endif main() { exit(R_OK); } EOCP : check sys/file.h first, no particular reason here if $test `./findhdr sys/file.h` && \ $cc $cppflags -DI_SYS_FILE -o access access.c >/dev/null 2>&1 ; then h_sysfile=true; echo " defines the *_OK access constants." >&4 elif $test `./findhdr fcntl.h` && \ $cc $cppflags -DI_FCNTL -o access access.c >/dev/null 2>&1 ; then h_fcntl=true; echo " defines the *_OK access constants." >&4 elif $test `./findhdr unistd.h` && \ $cc $cppflags -DI_UNISTD -o access access.c >/dev/null 2>&1 ; then echo " defines the *_OK access constants." >&4 else echo "I can't find the four *_OK access constants--I'll use mine." >&4 fi ;; esac $rm -f access* : see if accessx exists set accessx d_accessx eval $inlibc : see if alarm exists set alarm d_alarm eval $inlibc : Look for GNU-cc style attribute checking echo " " echo "Checking whether your compiler can handle __attribute__ ..." >&4 $cat >attrib.c <<'EOCP' #include void croak (char* pat,...) __attribute__((format(printf,1,2),noreturn)); EOCP if $cc $ccflags -c attrib.c >attrib.out 2>&1 ; then if $contains 'warning' attrib.out >/dev/null 2>&1; then echo "Your C compiler doesn't fully support __attribute__." val="$undef" else echo "Your C compiler supports __attribute__." val="$define" fi else echo "Your C compiler doesn't seem to understand __attribute__ at all." val="$undef" fi set d_attribut eval $setvar $rm -f attrib* : see if bcmp exists set bcmp d_bcmp eval $inlibc : see if bcopy exists set bcopy d_bcopy eval $inlibc : see if this is a unistd.h system set unistd.h i_unistd eval $inhdr : see if getpgrp exists set getpgrp d_getpgrp eval $inlibc case "$d_getpgrp" in "$define") echo " " echo "Checking to see which flavor of getpgrp is in use..." $cat >set.c < #ifdef I_UNISTD # include #endif main() { if (getuid() == 0) { printf("(I see you are running Configure as super-user...)\n"); setuid(1); } #ifdef TRY_BSD_PGRP if (getpgrp(1) == 0) exit(0); #else if (getpgrp() > 0) exit(0); #endif exit(1); } EOP if $cc -DTRY_BSD_PGRP $ccflags $ldflags -o set set.c $libs >/dev/null 2>&1 && ./set; then echo "You have to use getpgrp(pid) instead of getpgrp()." >&4 val="$define" elif $cc $ccflags $ldflags -o set set.c $libs >/dev/null 2>&1 && ./set; then echo "You have to use getpgrp() instead of getpgrp(pid)." >&4 val="$undef" else echo "I can't seem to compile and run the test program." if ./usg; then xxx="a USG one, i.e. you use getpgrp()." else # SVR4 systems can appear rather BSD-ish. case "$i_unistd" in $undef) xxx="a BSD one, i.e. you use getpgrp(pid)." val="$define" ;; $define) xxx="probably a USG one, i.e. you use getpgrp()." val="$undef" ;; esac fi echo "Assuming your getpgrp is $xxx" >&4 fi ;; *) val="$undef";; esac set d_bsdgetpgrp eval $setvar $rm -f set set.c : see if setpgrp exists set setpgrp d_setpgrp eval $inlibc case "$d_setpgrp" in "$define") echo " " echo "Checking to see which flavor of setpgrp is in use..." $cat >set.c < #ifdef I_UNISTD # include #endif main() { if (getuid() == 0) { printf("(I see you are running Configure as super-user...)\n"); setuid(1); } #ifdef TRY_BSD_PGRP if (-1 == setpgrp(1, 1)) exit(0); #else if (setpgrp() != -1) exit(0); #endif exit(1); } EOP if $cc -DTRY_BSD_PGRP $ccflags $ldflags -o set set.c $libs >/dev/null 2>&1 && ./set; then echo 'You have to use setpgrp(pid,pgrp) instead of setpgrp().' >&4 val="$define" elif $cc $ccflags $ldflags -o set set.c $libs >/dev/null 2>&1 && ./set; then echo 'You have to use setpgrp() instead of setpgrp(pid,pgrp).' >&4 val="$undef" else echo "(I can't seem to compile and run the test program.)" if ./usg; then xxx="a USG one, i.e. you use setpgrp()." else # SVR4 systems can appear rather BSD-ish. case "$i_unistd" in $undef) xxx="a BSD one, i.e. you use setpgrp(pid,pgrp)." val="$define" ;; $define) xxx="probably a USG one, i.e. you use setpgrp()." val="$undef" ;; esac fi echo "Assuming your setpgrp is $xxx" >&4 fi ;; *) val="$undef";; esac set d_bsdsetpgrp eval $setvar $rm -f set set.c : see if bzero exists set bzero d_bzero eval $inlibc : check for lengths of integral types echo " " case "$intsize" in '') echo "Checking to see how big your integers are..." >&4 $cat >intsize.c <<'EOCP' #include main() { printf("intsize=%d;\n", sizeof(int)); printf("longsize=%d;\n", sizeof(long)); printf("shortsize=%d;\n", sizeof(short)); exit(0); } EOCP set intsize if eval $compile_ok && ./intsize > /dev/null; then eval `./intsize` echo "Your integers are $intsize bytes long." echo "Your long integers are $longsize bytes long." echo "Your short integers are $shortsize bytes long." else $cat >&4 <$$.tmp 2>/dev/null if $contains 'int.*\*[ ]*signal' $$.tmp >/dev/null 2>&1 ; then echo "You have int (*signal())() instead of void." >&4 val="$undef" elif $contains 'void.*\*[ ]*signal' $$.tmp >/dev/null 2>&1 ; then echo "You have void (*signal())()." >&4 val="$define" elif $contains 'extern[ ]*[(\*]*signal' $$.tmp >/dev/null 2>&1 ; then echo "You have int (*signal())() instead of void." >&4 val="$undef" elif $contains 'void.*\*.*sig' $$.tmp >/dev/null 2>&1 ; then echo "You have void (*signal())()." >&4 val="$define" else case "$d_voidsig" in '') echo "I can't determine whether signal handler returns void or int..." >&4 dflt=void rp="What type does your signal handler return?" . ./myread case "$ans" in v*) val="$define";; *) val="$undef";; esac;; "$define") echo "As you already told me, signal handler returns void." >&4 val="$define" ;; *) echo "As you already told me, signal handler returns int." >&4 val="$undef" ;; esac fi set d_voidsig eval $setvar case "$d_voidsig" in "$define") signal_t="void";; *) signal_t="int";; esac $rm -f $$.tmp : check for ability to cast large floats to 32-bit ints. echo " " echo 'Checking whether your C compiler can cast large floats to int32.' >&4 if $test "$intsize" -ge 4; then xxx=int else xxx=long fi $cat >try.c < #include #include $signal_t blech(s) int s; { exit(3); } main() { $xxx i32; double f, g; int result = 0; char str[16]; signal(SIGFPE, blech); /* Don't let compiler optimize the test away. Store the number in a writable string for gcc to pass to sscanf under HP/UX. */ sprintf(str, "2147483647"); sscanf(str, "%lf", &f); /* f = (double) 0x7fffffff; */ g = 10 * f; i32 = ($xxx) g; /* x86 processors will probably give 0x8000 0000, which is a sign change. We don't want that. We want to mimic SPARC behavior here, which is to preserve the sign and give back 0x7fff ffff. */ if (i32 != ($xxx) f) result |= 1; exit(result); } EOCP set try if eval $compile_ok; then ./try yyy=$? else echo "(I can't seem to compile the test program--assuming it can't)" yyy=1 fi case "$yyy" in 0) val="$define" echo "Yup, it can." ;; *) val="$undef" echo "Nope, it can't." ;; esac set d_casti32 eval $setvar $rm -f try try.* : check for ability to cast negative floats to unsigned echo " " echo 'Checking whether your C compiler can cast negative float to unsigned.' >&4 $cat >try.c < #include #include $signal_t blech(s) int s; { exit(7); } $signal_t blech_in_list(s) int s; { exit(4); } unsigned long dummy_long(p) unsigned long p; { return p; } unsigned int dummy_int(p) unsigned int p; { return p; } unsigned short dummy_short(p) unsigned short p; { return p; } main() { double f; unsigned long along; unsigned int aint; unsigned short ashort; int result = 0; char str[16]; /* Frustrate gcc-2.7.2's optimizer which failed this test with a direct f = -123. assignment. gcc-2.8.0 reportedly optimized the whole file away */ /* Store the number in a writable string for gcc to pass to sscanf under HP/UX. */ sprintf(str, "-123"); sscanf(str, "%lf", &f); /* f = -123.; */ signal(SIGFPE, blech); along = (unsigned long)f; aint = (unsigned int)f; ashort = (unsigned short)f; if (along != (unsigned long)-123) result |= 1; if (aint != (unsigned int)-123) result |= 1; if (ashort != (unsigned short)-123) result |= 1; sprintf(str, "1073741824."); sscanf(str, "%lf", &f); /* f = (double)0x40000000; */ f = f + f; along = 0; along = (unsigned long)f; if (along != 0x80000000) result |= 2; f -= 1.; along = 0; along = (unsigned long)f; if (along != 0x7fffffff) result |= 1; f += 2.; along = 0; along = (unsigned long)f; if (along != 0x80000001) result |= 2; if (result) exit(result); signal(SIGFPE, blech_in_list); sprintf(str, "123."); sscanf(str, "%lf", &f); /* f = 123.; */ along = dummy_long((unsigned long)f); aint = dummy_int((unsigned int)f); ashort = dummy_short((unsigned short)f); if (along != (unsigned long)123) result |= 4; if (aint != (unsigned int)123) result |= 4; if (ashort != (unsigned short)123) result |= 4; exit(result); } EOCP set try if eval $compile_ok; then ./try castflags=$? else echo "(I can't seem to compile the test program--assuming it can't)" castflags=7 fi case "$castflags" in 0) val="$define" echo "Yup, it can." ;; *) val="$undef" echo "Nope, it can't." ;; esac set d_castneg eval $setvar $rm -f try.* : see if vprintf exists echo " " if set vprintf val -f d_vprintf; eval $csym; $val; then echo 'vprintf() found.' >&4 val="$define" $cat >vprintf.c <<'EOF' #include main() { xxx("foo"); } xxx(va_alist) va_dcl { va_list args; char buf[10]; va_start(args); exit((unsigned long)vsprintf(buf,"%s",args) > 10L); } EOF set vprintf if eval $compile && ./vprintf; then echo "Your vsprintf() returns (int)." >&4 val2="$undef" else echo "Your vsprintf() returns (char*)." >&4 val2="$define" fi else echo 'vprintf() NOT found.' >&4 val="$undef" val2="$undef" fi set d_vprintf eval $setvar val=$val2 set d_charvspr eval $setvar : see if chown exists set chown d_chown eval $inlibc : see if chroot exists set chroot d_chroot eval $inlibc : see if chsize exists set chsize d_chsize eval $inlibc : check for const keyword echo " " echo 'Checking to see if your C compiler knows about "const"...' >&4 $cat >const.c <<'EOCP' typedef struct spug { int drokk; } spug; main() { const char *foo; const spug y; } EOCP if $cc -c $ccflags const.c >/dev/null 2>&1 ; then val="$define" echo "Yup, it does." else val="$undef" echo "Nope, it doesn't." fi set d_const eval $setvar : see if crypt exists echo " " if set crypt val -f d_crypt; eval $csym; $val; then echo 'crypt() found.' >&4 val="$define" cryptlib='' else cryptlib=`./loc Slibcrypt$_a "" $xlibpth` if $test -z "$cryptlib"; then cryptlib=`./loc Mlibcrypt$_a "" $xlibpth` else cryptlib=-lcrypt fi if $test -z "$cryptlib"; then cryptlib=`./loc Llibcrypt$_a "" $xlibpth` else cryptlib=-lcrypt fi if $test -z "$cryptlib"; then cryptlib=`./loc libcrypt$_a "" $libpth` else cryptlib=-lcrypt fi if $test -z "$cryptlib"; then echo 'crypt() NOT found.' >&4 val="$undef" else val="$define" fi fi set d_crypt eval $setvar : see if cuserid exists set cuserid d_cuserid eval $inlibc : see if this is a limits.h system set limits.h i_limits eval $inhdr : see if this is a float.h system set float.h i_float eval $inhdr : See if number of significant digits in a double precision number is known echo " " $cat >dbl_dig.c < #endif #ifdef I_FLOAT #include #endif #ifdef DBL_DIG printf("Contains DBL_DIG"); #endif EOM $cppstdin $cppflags $cppminus < dbl_dig.c >dbl_dig.E 2>/dev/null if $contains 'DBL_DIG' dbl_dig.E >/dev/null 2>&1; then echo "DBL_DIG found." >&4 val="$define" else echo "DBL_DIG NOT found." >&4 val="$undef" fi $rm -f dbl_dig.? set d_dbl_dig eval $setvar if $test X"$use64bits" = X"$define"; then : see if dbminit64 exists set dbminit64 d_dbminit64 eval $inlibc : see if dbmclose64 exists set dbmclose64 d_dbmclose64 eval $inlibc : see if fetch64 exists set fetch64 d_fetch64 eval $inlibc : see if store64 exists set store64 d_store64 eval $inlibc : see if delete64 exists set delete64 d_delete64 eval $inlibc : see if firstkey64 exists set firstkey64 d_firstkey64 eval $inlibc : see if nextkey64 exists set nextkey64 d_nextkey64 eval $inlibc else val="$undef" for xxx in d_dbminit64 d_dbmclose64 d_fetch64 d_store64 d_delete64 d_firstkey64 d_nextkey64 do set $xxx eval $setvar done fi : see if difftime exists set difftime d_difftime eval $inlibc : see if sys/stat.h is available set sys/stat.h i_sysstat eval $inhdr : see if this is a dirent system echo " " if xinc=`./findhdr dirent.h`; $test "$xinc"; then val="$define" echo " found." >&4 else val="$undef" if xinc=`./findhdr sys/dir.h`; $test "$xinc"; then echo " found." >&4 echo " " else xinc=`./findhdr sys/ndir.h` fi echo " NOT found." >&4 fi set i_dirent eval $setvar : Look for type of directory structure. echo " " $cppstdin $cppflags $cppminus < "$xinc" > try.c case "$direntrytype" in ''|' ') case "$i_dirent" in $define) guess1='struct dirent' ;; *) guess1='struct direct' ;; esac ;; *) guess1="$direntrytype" ;; esac case "$guess1" in 'struct dirent') guess2='struct direct' ;; *) guess2='struct dirent' ;; esac if $contains "$guess1" try.c >/dev/null 2>&1; then direntrytype="$guess1" echo "Your directory entries are $direntrytype." >&4 elif $contains "$guess2" try.c >/dev/null 2>&1; then direntrytype="$guess2" echo "Your directory entries seem to be $direntrytype." >&4 else echo "I don't recognize your system's directory entries." >&4 rp="What type is used for directory entries on this system?" dflt="$guess1" . ./myread direntrytype="$ans" fi $rm -f try.c : see if the directory entry stores field length echo " " $cppstdin $cppflags $cppminus < "$xinc" > try.c if $contains 'd_namlen' try.c >/dev/null 2>&1; then echo "Good, your directory entry keeps length information in d_namlen." >&4 val="$define" else echo "Your directory entry does not know about the d_namlen field." >&4 val="$undef" fi set d_dirnamlen eval $setvar $rm -f try.c hasfield='varname=$1; struct=$2; field=$3; shift; shift; shift; while $test $# -ge 2; do case "$1" in $define) echo "#include <$2>";; esac ; shift 2; done > try.c; echo "int main () { struct $struct foo; foo.$field = 0; }" >> try.c; if eval $cc $optimize $ccflags -c try.c >/dev/null 2>&1; then val="$define"; else val="$undef"; fi; set $varname; eval $setvar; $rm -f try.c try.o' if $test X"$use64bits" = X"$define"; then : see if fstat64 exists set fstat64 d_fstat64 eval $inlibc : see if ftruncate64 exists set ftruncate64 d_ftruncate64 eval $inlibc : see if lockf64 exists set lockf64 d_lockf64 eval $inlibc : see if lseek64 exists set lseek64 d_lseek64 eval $inlibc : see if lstat64 exists set lstat64 d_lstat64 eval $inlibc : see if open64 exists set open64 d_open64 eval $inlibc : see if opendir64 exists set opendir64 d_opendir64 eval $inlibc : see if readdir64 exists set readdir64 d_readdir64 eval $inlibc : see if seekdir64 exists set seekdir64 d_seekdir64 eval $inlibc : see if stat64 exists set stat64 d_stat64 eval $inlibc : see if telldir64 exists set telldir64 d_telldir64 eval $inlibc : see if truncate64 exists set truncate64 d_truncate64 eval $inlibc : check for off64_t echo " " echo $n "Checking to see if your system supports off64_t...$c" >&4 $cat >try.c < off64_t foo() { off64_t x; x = 7; return x; }' EOCP if $cc $optimize $ccflags -c try.c >/dev/null 2>&1; then val="$define" echo " Yup, it does." >&4 else val="$undef" echo " Nope, it doesn't." >&4 fi $rm -f try.* set d_off64t eval $setvar : check for ino64_t echo " " echo $n "Checking to see if your system supports ino64_t...$c" >&4 val="$undef" case "$i_sysstat" in "$define" ) $cat >try.c < #include ino64_t foo() { ino64_t x; x = 7; return x; }' EOCP if $cc $optimize $ccflags -c try.c >/dev/null 2>&1; then val="$define" fi $rm -f try.* ;; esac if $test "X$val" = X"$define"; then echo " Yup, it does." >&4 else echo " Nope, it doesn't." >&4 fi set d_ino64t eval $setvar : check for struct flock64 echo " " echo "Checking to see if your system supports struct flock64..." >&4 if $h_fcntl; then set d_flock64s flock64 l_len define fcntl.h eval $hasfield else val="$undef" set d_flock64s eval $setvar fi case "$d_flock64s" in "$define") echo "Yup, it does." >&4 ;; *) echo "Nope, it doesn't." >&4 ;; esac : check for struct dirent64 echo " " echo "Checking to see if your system supports struct dirent64..." >&4 set d_dirent64s dirent64 d_off $i_dirent dirent.h eval $hasfield case "$d_flock64s" in "$define") echo "Yup, it does." >&4 ;; *) echo "Nope, it doesn't." >&4 ;; esac else val="$undef" for xxx in d_fstat64 d_ftruncate64 d_lockf64 d_lseek64 d_lstat64 d_open64 d_opendir64 d_readdir64 d_seekdir64 d_stat64 d_telldir64 d_truncate64 d_off64t d_ino64t d_flock64s d_dirent64s do set $xxx eval $setvar done fi : see if dlerror exists xxx_runnm="$runnm" runnm=false set dlerror d_dlerror eval $inlibc runnm="$xxx_runnm" : see if dlfcn is available set dlfcn.h i_dlfcn eval $inhdr case "$usedl" in $define|y|true) $cat << EOM On a few systems, the dynamically loaded modules that perl generates and uses will need a different extension than shared libs. The default will probably be appropriate. EOM case "$dlext" in '') dflt="$so" ;; *) dflt="$dlext" ;; esac rp='What is the extension of dynamically loaded modules' . ./myread dlext="$ans" ;; *) dlext="none" ;; esac : Check if dlsym need a leading underscore echo " " val="$undef" case "$dlsrc" in dl_dlopen.xs) echo "Checking whether your dlsym() needs a leading underscore ..." >&4 $cat >dyna.c <<'EOM' fred () { } EOM $cat >fred.c< #$i_dlfcn I_DLFCN #ifdef I_DLFCN #include /* the dynamic linker include file for Sunos/Solaris */ #else #include #include #include #endif extern int fred() ; main() { void * handle ; void * symbol ; #ifndef RTLD_LAZY int mode = 1 ; #else int mode = RTLD_LAZY ; #endif handle = dlopen("./dyna.$dlext", mode) ; if (handle == NULL) { printf ("1\n") ; fflush (stdout) ; exit(0); } symbol = dlsym(handle, "fred") ; if (symbol == NULL) { /* try putting a leading underscore */ symbol = dlsym(handle, "_fred") ; if (symbol == NULL) { printf ("2\n") ; fflush (stdout) ; exit(0); } printf ("3\n") ; } else printf ("4\n") ; fflush (stdout) ; exit(0); } EOM : Call the object file tmp-dyna.o in case dlext=o. if $cc $ccflags $cccdlflags -c dyna.c > /dev/null 2>&1 && mv dyna${_o} tmp-dyna${_o} > /dev/null 2>&1 && $ld $lddlflags -o dyna.$dlext tmp-dyna${_o} > /dev/null 2>&1 && $cc $ccflags -o fred $ldflags $cccdlflags $ccdlflags fred.c $libs > /dev/null 2>&1; then xxx=`./fred` case $xxx in 1) echo "Test program failed using dlopen." >&4 echo "Perhaps you should not use dynamic loading." >&4;; 2) echo "Test program failed using dlsym." >&4 echo "Perhaps you should not use dynamic loading." >&4;; 3) echo "dlsym needs a leading underscore" >&4 val="$define" ;; 4) echo "dlsym doesn't need a leading underscore." >&4;; esac else echo "I can't compile and run the test program." >&4 fi ;; esac $rm -f fred fred.? dyna.$dlext dyna.? tmp-dyna.? set d_dlsymun eval $setvar hasproto='varname=$1; func=$2; shift; shift; while $test $# -ge 2; do case "$1" in $define) echo "#include <$2>";; esac ; shift 2; done > try.c; $cppstdin $cppflags $cppminus < try.c > tryout.c 2>/dev/null; if $contains "$func.*(" tryout.c >/dev/null 2>&1; then echo "$func() prototype found."; val="$define"; else echo "$func() prototype NOT found."; val="$undef"; fi; set $varname; eval $setvar; $rm -f try.c tryout.c' : see if prototype for drand48 is available echo " " set d_drand48proto drand48 $i_stdlib stdlib.h $i_unistd unistd.h eval $hasproto : see if dup2 exists set dup2 d_dup2 eval $inlibc : see if eaccess exists set eaccess d_eaccess eval $inlibc : see if endgrent exists set endgrent d_endgrent eval $inlibc : see if endhostent exists set endhostent d_endhent eval $inlibc : see if endnetent exists set endnetent d_endnent eval $inlibc : see if endprotoent exists set endprotoent d_endpent eval $inlibc : see if endpwent exists set endpwent d_endpwent eval $inlibc : see if endservent exists set endservent d_endsent eval $inlibc : Locate the flags for 'open()' echo " " $cat >open3.c <<'EOCP' #include #ifdef I_FCNTL #include #endif #ifdef I_SYS_FILE #include #endif main() { if(O_RDONLY); #ifdef O_TRUNC exit(0); #else exit(1); #endif } EOCP : check sys/file.h first to get FREAD on Sun if $test `./findhdr sys/file.h` && \ set open3 -DI_SYS_FILE && eval $compile; then h_sysfile=true; echo " defines the O_* constants..." >&4 if ./open3; then echo "and you have the 3 argument form of open()." >&4 val="$define" else echo "but not the 3 argument form of open(). Oh, well." >&4 val="$undef" fi elif $test `./findhdr fcntl.h` && \ set open3 -DI_FCNTL && eval $compile; then h_fcntl=true; echo " defines the O_* constants..." >&4 if ./open3; then echo "and you have the 3 argument form of open()." >&4 val="$define" else echo "but not the 3 argument form of open(). Oh, well." >&4 val="$undef" fi else val="$undef" echo "I can't find the O_* constant definitions! You got problems." >&4 fi set d_open3 eval $setvar $rm -f open3* : check for non-blocking I/O stuff case "$h_sysfile" in true) echo "#include " > head.c;; *) case "$h_fcntl" in true) echo "#include " > head.c;; *) echo "#include " > head.c;; esac ;; esac echo " " echo "Figuring out the flag used by open() for non-blocking I/O..." >&4 case "$o_nonblock" in '') $cat head.c > try.c $cat >>try.c <<'EOCP' main() { #ifdef O_NONBLOCK printf("O_NONBLOCK\n"); exit(0); #endif #ifdef O_NDELAY printf("O_NDELAY\n"); exit(0); #endif #ifdef FNDELAY printf("FNDELAY\n"); exit(0); #endif exit(0); } EOCP set try if eval $compile_ok; then o_nonblock=`./try` case "$o_nonblock" in '') echo "I can't figure it out, assuming O_NONBLOCK will do.";; *) echo "Seems like we can use $o_nonblock.";; esac else echo "(I can't compile the test program; pray O_NONBLOCK is right!)" fi ;; *) echo "Using $hint value $o_nonblock.";; esac $rm -f try try.* .out core echo " " echo "Let's see what value errno gets from read() on a $o_nonblock file..." >&4 case "$eagain" in '') $cat head.c > try.c $cat >>try.c < #include #include #define MY_O_NONBLOCK $o_nonblock #ifndef errno /* XXX need better Configure test */ extern int errno; #endif $signal_t blech(x) int x; { exit(3); } EOCP $cat >> try.c <<'EOCP' main() { int pd[2]; int pu[2]; char buf[1]; char string[100]; pipe(pd); /* Down: child -> parent */ pipe(pu); /* Up: parent -> child */ if (0 != fork()) { int ret; close(pd[1]); /* Parent reads from pd[0] */ close(pu[0]); /* Parent writes (blocking) to pu[1] */ if (-1 == fcntl(pd[0], F_SETFL, MY_O_NONBLOCK)) exit(1); signal(SIGALRM, blech); alarm(5); if ((ret = read(pd[0], buf, 1)) > 0) /* Nothing to read! */ exit(2); sprintf(string, "%d\n", ret); write(2, string, strlen(string)); alarm(0); #ifdef EAGAIN if (errno == EAGAIN) { printf("EAGAIN\n"); goto ok; } #endif #ifdef EWOULDBLOCK if (errno == EWOULDBLOCK) printf("EWOULDBLOCK\n"); #endif ok: write(pu[1], buf, 1); /* Unblocks child, tell it to close our pipe */ sleep(2); /* Give it time to close our pipe */ alarm(5); ret = read(pd[0], buf, 1); /* Should read EOF */ alarm(0); sprintf(string, "%d\n", ret); write(3, string, strlen(string)); exit(0); } close(pd[0]); /* We write to pd[1] */ close(pu[1]); /* We read from pu[0] */ read(pu[0], buf, 1); /* Wait for parent to signal us we may continue */ close(pd[1]); /* Pipe pd is now fully closed! */ exit(0); /* Bye bye, thank you for playing! */ } EOCP set try if eval $compile_ok; then echo "$startsh" >mtry echo "./try >try.out 2>try.ret 3>try.err || exit 4" >>mtry chmod +x mtry ./mtry >/dev/null 2>&1 case $? in 0) eagain=`$cat try.out`;; 1) echo "Could not perform non-blocking setting!";; 2) echo "I did a successful read() for something that was not there!";; 3) echo "Hmm... non-blocking I/O does not seem to be working!";; *) echo "Something terribly wrong happened during testing.";; esac rd_nodata=`$cat try.ret` echo "A read() system call with no data present returns $rd_nodata." case "$rd_nodata" in 0|-1) ;; *) echo "(That's peculiar, fixing that to be -1.)" rd_nodata=-1 ;; esac case "$eagain" in '') echo "Forcing errno EAGAIN on read() with no data available." eagain=EAGAIN ;; *) echo "Your read() sets errno to $eagain when no data is available." ;; esac status=`$cat try.err` case "$status" in 0) echo "And it correctly returns 0 to signal EOF.";; -1) echo "But it also returns -1 to signal EOF, so be careful!";; *) echo "However, your read() returns '$status' on EOF??";; esac val="$define" if test "$status" = "$rd_nodata"; then echo "WARNING: you can't distinguish between EOF and no data!" val="$undef" fi else echo "I can't compile the test program--assuming errno EAGAIN will do." eagain=EAGAIN fi set d_eofnblk eval $setvar ;; *) echo "Using $hint value $eagain." echo "Your read() returns $rd_nodata when no data is present." case "$d_eofnblk" in "$define") echo "And you can see EOF because read() returns 0.";; "$undef") echo "But you can't see EOF status from read() returned value.";; *) echo "(Assuming you can't see EOF status from read anyway.)" d_eofnblk=$undef ;; esac ;; esac $rm -f try try.* .out core head.c mtry : see if fchmod exists set fchmod d_fchmod eval $inlibc : see if fchown exists set fchown d_fchown eval $inlibc : see if this is an fcntl system set fcntl d_fcntl eval $inlibc : see if fgetpos exists set fgetpos d_fgetpos eval $inlibc if $test X"$use64bits" = X"$define"; then : see if fgetpos64 exists set fgetpos64 d_fgetpos64 eval $inlibc : see if fopen64 exists set freopen64 d_fopen64 eval $inlibc : see if freopen64 exists set freopen64 d_freopen64 eval $inlibc : see if fseek64 exists set fseek64 d_fseek64 eval $inlibc : see if fseeko64 exists set fseeko64 d_fseeko64 eval $inlibc : see if fsetpos64 exists set fsetpos64 d_fsetpos64 eval $inlibc : see if ftell64 exists set ftell64 d_ftell64 eval $inlibc : see if ftello64 exists set ftello64 d_ftello64 eval $inlibc : see if tmpfile64 exists set tmpfile64 d_tmpfile64 eval $inlibc else val="$undef" for xxx in d_fgetpos64 d_fopen64 d_freopen64 d_fseek64 d_fseeko64 d_fsetpos64 d_ftell64 d_ftello64 d_tmpfile64 do set $xxx eval $setvar done fi : see if flock exists set flock d_flock eval $inlibc : see if fork exists set fork d_fork eval $inlibc : see if pathconf exists set pathconf d_pathconf eval $inlibc : see if fpathconf exists set fpathconf d_fpathconf eval $inlibc : see if fseeko exists set fseeko d_fseeko eval $inlibc : see if fsetpos exists set fsetpos d_fsetpos eval $inlibc : see if ftello exists set ftello d_ftello eval $inlibc : see if getgrent exists set getgrent d_getgrent eval $inlibc : see if gethostbyaddr exists set gethostbyaddr d_gethbyaddr eval $inlibc : see if gethostbyname exists set gethostbyname d_gethbyname eval $inlibc : see if gethostent exists set gethostent d_gethent eval $inlibc : see if this is a netdb.h system set netdb.h i_netdb eval $inhdr : see if prototypes for various gethostxxx netdb.h functions are available echo " " set d_gethostprotos gethostent $i_netdb netdb.h eval $hasproto : see if getlogin exists set getlogin d_getlogin eval $inlibc : see if getnetbyaddr exists set getnetbyaddr d_getnbyaddr eval $inlibc : see if getnetbyname exists set getnetbyname d_getnbyname eval $inlibc : see if getnetent exists set getnetent d_getnent eval $inlibc : see if prototypes for various getnetxxx netdb.h functions are available echo " " set d_getnetprotos getnetent $i_netdb netdb.h eval $hasproto : see if getprotobyname exists set getprotobyname d_getpbyname eval $inlibc : see if getprotobynumber exists set getprotobynumber d_getpbynumber eval $inlibc : see if getprotoent exists set getprotoent d_getpent eval $inlibc : see if getpgid exists set getpgid d_getpgid eval $inlibc : see if getpgrp2 exists set getpgrp2 d_getpgrp2 eval $inlibc : see if getppid exists set getppid d_getppid eval $inlibc : see if getpriority exists set getpriority d_getprior eval $inlibc : see if prototypes for various getprotoxxx netdb.h functions are available echo " " set d_getprotoprotos getprotoent $i_netdb netdb.h eval $hasproto : see if getpwent exists set getpwent d_getpwent eval $inlibc : see if getservbyname exists set getservbyname d_getsbyname eval $inlibc : see if getservbyport exists set getservbyport d_getsbyport eval $inlibc : see if getservent exists set getservent d_getsent eval $inlibc : see if prototypes for various getservxxx netdb.h functions are available echo " " set d_getservprotos getservent $i_netdb netdb.h eval $hasproto : see if gettimeofday or ftime exists set gettimeofday d_gettimeod eval $inlibc case "$d_gettimeod" in "$undef") set ftime d_ftime eval $inlibc ;; *) val="$undef"; set d_ftime; eval $setvar ;; esac case "$d_gettimeod$d_ftime" in "$undef$undef") echo " " echo 'No ftime() nor gettimeofday() -- timing may be less accurate.' >&4 ;; esac : see if this is an grp system set grp.h i_grp eval $inhdr case "$i_grp" in $define) xxx=`./findhdr grp.h` $cppstdin $cppflags $cppminus < $xxx >$$.h if $contains 'gr_passwd' $$.h >/dev/null 2>&1; then val="$define" else val="$undef" fi set d_grpasswd eval $setvar $rm -f $$.h ;; *) val="$undef"; set d_grpasswd; eval $setvar ;; esac : see if this is a netinet/in.h or sys/in.h system set netinet/in.h i_niin sys/in.h i_sysin eval $inhdr : see if arpa/inet.h has to be included set arpa/inet.h i_arpainet eval $inhdr : see if htonl --and friends-- exists val='' set htonl val eval $inlibc : Maybe they are macros. case "$val" in $undef) $cat >htonl.c < #include #$i_niin I_NETINET_IN #$i_sysin I_SYS_IN #$i_arpainet I_ARPA_INET #ifdef I_NETINET_IN #include #endif #ifdef I_SYS_IN #include #endif #ifdef I_ARPA_INET #include #endif #ifdef htonl printf("Defined as a macro."); #endif EOM $cppstdin $cppflags $cppminus < htonl.c >htonl.E 2>/dev/null if $contains 'Defined as a macro' htonl.E >/dev/null 2>&1; then val="$define" echo "But it seems to be defined as a macro." >&4 fi $rm -f htonl.? ;; esac set d_htonl eval $setvar : see which of string.h or strings.h is needed echo " " strings=`./findhdr string.h` if $test "$strings" && $test -r "$strings"; then echo "Using instead of ." >&4 val="$define" else val="$undef" strings=`./findhdr strings.h` if $test "$strings" && $test -r "$strings"; then echo "Using instead of ." >&4 else echo "No string header found -- You'll surely have problems." >&4 fi fi set i_string eval $setvar case "$i_string" in "$undef") strings=`./findhdr strings.h`;; *) strings=`./findhdr string.h`;; esac : index or strchr echo " " if set index val -f; eval $csym; $val; then if set strchr val -f d_strchr; eval $csym; $val; then if $contains strchr "$strings" >/dev/null 2>&1 ; then val="$define" vali="$undef" echo "strchr() found." >&4 else val="$undef" vali="$define" echo "index() found." >&4 fi else val="$undef" vali="$define" echo "index() found." >&4 fi else if set strchr val -f d_strchr; eval $csym; $val; then val="$define" vali="$undef" echo "strchr() found." >&4 else echo "No index() or strchr() found!" >&4 val="$undef" vali="$undef" fi fi set d_strchr; eval $setvar val="$vali" set d_index; eval $setvar : check whether inet_aton exists set inet_aton d_inetaton eval $inlibc : see if inttypes.h is available set inttypes.h i_inttypes eval $inhdr : check for int64_t case "$use64bits" in "$define" ) echo " " echo $n "Checking to see if your system supports int64_t...$c" >&4 $cat >try.c < #$i_inttypes I_INTTYPES #ifdef I_INTTYPES #include #endif int64_t foo() { int64_t x; x = 7; return x; }' EOCP if $cc $optimize $ccflags -c try.c >/dev/null 2>&1; then val="$define" echo " Yup, it does." >&4 else val="$undef" echo " Nope, it doesn't." >&4 fi $rm -f try.* ;; *) val="$undef" ;; esac set d_int64t eval $setvar : Look for isascii echo " " $cat >isascii.c <<'EOCP' #include #include main() { int c = 'A'; if (isascii(c)) exit(0); else exit(1); } EOCP set isascii if eval $compile; then echo "isascii() found." >&4 val="$define" else echo "isascii() NOT found." >&4 val="$undef" fi set d_isascii eval $setvar $rm -f isascii* : see if killpg exists set killpg d_killpg eval $inlibc : see if lchown exists echo " " $cat > try.c <<'EOCP' /* System header to define __stub macros and hopefully few prototypes, which can conflict with char lchown(); below. */ #include /* Override any gcc2 internal prototype to avoid an error. */ /* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */ char lchown(); int main() { /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined (__stub_lchown) || defined (__stub___lchown) choke me #else lchown(); #endif ; return 0; } EOCP set try if eval $compile; then $echo "lchown() found." >&4 val="$define" else $echo "lchown() NOT found." >&4 val="$undef" fi set d_lchown eval $setvar : see if link exists set link d_link eval $inlibc : see if localeconv exists set localeconv d_locconv eval $inlibc : see if lockf exists set lockf d_lockf eval $inlibc : check for length of double echo " " case "$doublesize" in '') $echo $n "Checking to see how big your double precision numbers are...$c" >&4 $cat >try.c <<'EOCP' #include main() { printf("%d\n", sizeof(double)); } EOCP set try if eval $compile_ok; then doublesize=`./try` $echo " $doublesize bytes." >&4 else dflt='8' echo "(I can't seem to compile the test program. Guessing...)" rp="What is the size of a double precision number (in bytes)?" . ./myread doublesize="$ans" fi ;; esac $rm -f try.c try : check for long doubles echo " " echo $n "Checking to see if your system supports long doubles...$c" >&4 echo 'long double foo() { long double x; x = 7.0; return x; }' > try.c if $cc $optimize $ccflags -c try.c >/dev/null 2>&1; then val="$define" echo " Yup, it does." >&4 else val="$undef" echo " Nope, it doesn't." >&4 fi $rm try.* set d_longdbl eval $setvar : check for length of long double case "${d_longdbl}${longdblsize}" in $define) echo " " $echo $n "Checking to see how big your long doubles are...$c" >&4 $cat >try.c <<'EOCP' #include main() { printf("%d\n", sizeof(long double)); } EOCP set try if eval $compile; then longdblsize=`./try` $echo " $longdblsize bytes." >&4 else dflt='8' echo " " echo "(I can't seem to compile the test program. Guessing...)" >&4 rp="What is the size of a long double (in bytes)?" . ./myread longdblsize="$ans" fi if $test "X$doublesize" = "X$longdblsize"; then echo "(That isn't any different from an ordinary double.)" fi ;; esac $rm -f try.c try : check for long long echo " " echo $n "Checking to see if your system supports long long...$c" >&4 echo 'long long foo() { long long x; x = 7; return x; }' > try.c if $cc $optimize $ccflags -c try.c >/dev/null 2>&1; then val="$define" echo " Yup, it does." >&4 else val="$undef" echo " Nope, it doesn't." >&4 fi $rm try.* set d_longlong eval $setvar : check for length of long long case "${d_longlong}${longlongsize}" in $define) echo " " $echo $n "Checking to see how big your long longs are...$c" >&4 $cat >try.c <<'EOCP' #include main() { printf("%d\n", sizeof(long long)); } EOCP set try if eval $compile_ok; then longlongsize=`./try` $echo " $longlongsize bytes." >&4 else dflt='8' echo " " echo "(I can't seem to compile the test program. Guessing...)" rp="What is the size of a long long (in bytes)?" . ./myread longlongsize="$ans" fi if $test "X$longsize" = "X$longlongsize"; then echo "(That isn't any different from an ordinary long.)" fi ;; esac $rm -f try.c try : see if lstat exists set lstat d_lstat eval $inlibc : see if mblen exists set mblen d_mblen eval $inlibc : see if mbstowcs exists set mbstowcs d_mbstowcs eval $inlibc : see if mbtowc exists set mbtowc d_mbtowc eval $inlibc : see if memcmp exists set memcmp d_memcmp eval $inlibc : see if memcpy exists set memcpy d_memcpy eval $inlibc : see if memmove exists set memmove d_memmove eval $inlibc : see if memset exists set memset d_memset eval $inlibc : see if mkdir exists set mkdir d_mkdir eval $inlibc : see if mkfifo exists set mkfifo d_mkfifo eval $inlibc : see if mktime exists set mktime d_mktime eval $inlibc : see if msgctl exists set msgctl d_msgctl eval $inlibc : see if msgget exists set msgget d_msgget eval $inlibc : see if msgsnd exists set msgsnd d_msgsnd eval $inlibc : see if msgrcv exists set msgrcv d_msgrcv eval $inlibc : see how much of the 'msg*(2)' library is present. h_msg=true echo " " case "$d_msgctl$d_msgget$d_msgsnd$d_msgrcv" in *"$undef"*) h_msg=false;; esac case "$osname" in freebsd) case "`ipcs 2>&1`" in "SVID messages"*"not configured"*) echo "Your $osname does not have the msg*(2) configured." >&4 h_msg=false val="$undef" set msgctl d_msgctl eval $setvar set msgget d_msgget eval $setvar set msgsnd d_msgsnd eval $setvar set msgrcv d_msgrcv eval $setvar ;; esac ;; esac : we could also check for sys/ipc.h ... if $h_msg && $test `./findhdr sys/msg.h`; then echo "You have the full msg*(2) library." >&4 val="$define" else echo "You don't have the full msg*(2) library." >&4 val="$undef" fi set d_msg eval $setvar : see if nice exists set nice d_nice eval $inlibc : see if pause exists set pause d_pause eval $inlibc : see if pipe exists set pipe d_pipe eval $inlibc : see if poll exists set poll d_poll eval $inlibc : test whether pthreads are created in joinable -- aka undetached -- state if test "X$usethreads" = "X$define"; then echo $n "Checking whether pthreads are created joinable. $c" >&4 $cat >try.c <<'EOCP' #include #include int main() { pthread_attr_t attr; int detachstate; printf("%s\n", pthread_attr_init(&attr) == 0 && pthread_attr_getdetachstate(&attr, &detachstate) == 0 && detachstate == PTHREAD_CREATE_DETACHED ? "detached" : "joinable"); exit(0); } EOCP set try if eval $compile; then yyy=`./try` case "$yyy" in detached) echo "Nope, they aren't." >&4 ;; *) echo "Yup, they are." >&4 ;; esac else echo " " echo "(I can't execute the test program--assuming they are.)" >&4 yyy=joinable fi $rm -f try try.* case "$yyy" in detached) val="$undef" ;; *) val="$define" ;; esac set d_pthreads_created_joinable eval $setvar else d_pthreads_created_joinable="$undef" fi : see if this is a pwd.h system set pwd.h i_pwd eval $inhdr case "$i_pwd" in $define) xxx=`./findhdr pwd.h` $cppstdin $cppflags $cppminus < $xxx >$$.h if $contains 'pw_quota' $$.h >/dev/null 2>&1; then val="$define" else val="$undef" fi set d_pwquota eval $setvar if $contains 'pw_age' $$.h >/dev/null 2>&1; then val="$define" else val="$undef" fi set d_pwage eval $setvar if $contains 'pw_change' $$.h >/dev/null 2>&1; then val="$define" else val="$undef" fi set d_pwchange eval $setvar if $contains 'pw_class' $$.h >/dev/null 2>&1; then val="$define" else val="$undef" fi set d_pwclass eval $setvar if $contains 'pw_expire' $$.h >/dev/null 2>&1; then val="$define" else val="$undef" fi set d_pwexpire eval $setvar if $contains 'pw_comment' $$.h >/dev/null 2>&1; then val="$define" else val="$undef" fi set d_pwcomment eval $setvar if $contains 'pw_gecos' $$.h >/dev/null 2>&1; then val="$define" else val="$undef" fi set d_pwgecos eval $setvar if $contains 'pw_passwd' $$.h >/dev/null 2>&1; then val="$define" else val="$undef" fi set d_pwpasswd eval $setvar $rm -f $$.h ;; *) val="$undef"; set d_pwquota; eval $setvar set d_pwage; eval $setvar set d_pwchange; eval $setvar set d_pwclass; eval $setvar set d_pwexpire; eval $setvar set d_pwcomment; eval $setvar set d_pwgecos; eval $setvar set d_pwpasswd; eval $setvar ;; esac : see if readdir and friends exist set readdir d_readdir eval $inlibc set seekdir d_seekdir eval $inlibc set telldir d_telldir eval $inlibc set rewinddir d_rewinddir eval $inlibc : see if readlink exists set readlink d_readlink eval $inlibc : see if rename exists set rename d_rename eval $inlibc : see if rmdir exists set rmdir d_rmdir eval $inlibc : see if memory.h is available. val='' set memory.h val eval $inhdr : See if it conflicts with string.h case "$val" in $define) case "$strings" in '') ;; *) $cppstdin $cppflags $cppminus < $strings > mem.h if $contains 'memcpy' mem.h >/dev/null 2>&1; then echo " " echo "We won't be including ." val="$undef" fi $rm -f mem.h ;; esac esac set i_memory eval $setvar : can bcopy handle overlapping blocks? val="$undef" case "$d_bcopy" in "$define") echo " " echo "Checking to see if your bcopy() can do overlapping copies..." >&4 $cat >try.c <>try.c <<'EOCP' #include #ifdef I_MEMORY # include #endif #ifdef I_STDLIB # include #endif #ifdef I_STRING # include #else # include #endif #ifdef I_UNISTD # include /* Needed for NetBSD */ #endif main() { char buf[128], abc[128]; char *b; int len; int off; int align; bcopy("abcdefghijklmnopqrstuvwxyz0123456789", abc, 36); for (align = 7; align >= 0; align--) { for (len = 36; len; len--) { b = buf+align; bcopy(abc, b, len); for (off = 1; off <= len; off++) { bcopy(b, b+off, len); bcopy(b+off, b, len); if (bcmp(b, abc, len)) exit(1); } } } exit(0); } EOCP set try if eval $compile_ok; then if ./try 2>/dev/null; then echo "Yes, it can." val="$define" else echo "It can't, sorry." case "$d_memmove" in "$define") echo "But that's Ok since you have memmove()." ;; esac fi else echo "(I can't compile the test program, so we'll assume not...)" case "$d_memmove" in "$define") echo "But that's Ok since you have memmove()." ;; esac fi ;; esac $rm -f try.* try core set d_safebcpy eval $setvar : can memcpy handle overlapping blocks? val="$undef" case "$d_memcpy" in "$define") echo " " echo "Checking to see if your memcpy() can do overlapping copies..." >&4 $cat >try.c <>try.c <<'EOCP' #include #ifdef I_MEMORY # include #endif #ifdef I_STDLIB # include #endif #ifdef I_STRING # include #else # include #endif #ifdef I_UNISTD # include /* Needed for NetBSD */ #endif main() { char buf[128], abc[128]; char *b; int len; int off; int align; /* Copy "abcde..." string to char abc[] so that gcc doesn't try to store the string in read-only memory. */ memcpy(abc, "abcdefghijklmnopqrstuvwxyz0123456789", 36); for (align = 7; align >= 0; align--) { for (len = 36; len; len--) { b = buf+align; memcpy(b, abc, len); for (off = 1; off <= len; off++) { memcpy(b+off, b, len); memcpy(b, b+off, len); if (memcmp(b, abc, len)) exit(1); } } } exit(0); } EOCP set try if eval $compile_ok; then if ./try 2>/dev/null; then echo "Yes, it can." val="$define" else echo "It can't, sorry." case "$d_memmove" in "$define") echo "But that's Ok since you have memmove()." ;; esac fi else echo "(I can't compile the test program, so we'll assume not...)" case "$d_memmove" in "$define") echo "But that's Ok since you have memmove()." ;; esac fi ;; esac $rm -f try.* try core set d_safemcpy eval $setvar : can memcmp be trusted to compare relative magnitude? val="$undef" case "$d_memcmp" in "$define") echo " " echo "Checking if your memcmp() can compare relative magnitude..." >&4 $cat >try.c <>try.c <<'EOCP' #include #ifdef I_MEMORY # include #endif #ifdef I_STDLIB # include #endif #ifdef I_STRING # include #else # include #endif #ifdef I_UNISTD # include /* Needed for NetBSD */ #endif main() { char a = -1; char b = 0; if ((a < b) && memcmp(&a, &b, 1) < 0) exit(1); exit(0); } EOCP set try if eval $compile_ok; then if ./try 2>/dev/null; then echo "Yes, it can." val="$define" else echo "No, it can't (it uses signed chars)." fi else echo "(I can't compile the test program, so we'll assume not...)" fi ;; esac $rm -f try.* try core set d_sanemcmp eval $setvar : see if select exists set select d_select eval $inlibc : see if semctl exists set semctl d_semctl eval $inlibc : see if semget exists set semget d_semget eval $inlibc : see if semop exists set semop d_semop eval $inlibc : see how much of the 'sem*(2)' library is present. h_sem=true echo " " case "$d_semctl$d_semget$d_semop" in *"$undef"*) h_sem=false;; esac case "$osname" in freebsd) case "`ipcs 2>&1`" in "SVID messages"*"not configured"*) echo "Your $osname does not have the sem*(2) configured." >&4 h_sem=false val="$undef" set semctl d_semctl eval $setvar set semget d_semget eval $setvar set semop d_semop eval $setvar ;; esac ;; esac : we could also check for sys/ipc.h ... if $h_sem && $test `./findhdr sys/sem.h`; then echo "You have the full sem*(2) library." >&4 val="$define" else echo "You don't have the full sem*(2) library." >&4 val="$undef" fi set d_sem eval $setvar : see whether sys/sem.h defines union semun echo " " $cat > try.c <<'END' #include #include #include int main () { union semun semun; semun.buf = 0; } END set try if eval $compile; then echo "You have union semun in ." >&4 val="$define" else echo "You do not have union semun in ." >&4 val="$undef" fi $rm -f try try.c try.h set d_union_semun eval $setvar : see how to do semctl IPC_STAT case "$d_sem" in $define) : see whether semctl IPC_STAT can use union semun echo " " $cat > try.h <>3) # define S_IWGRP (S_IWUSR>>3) # define S_IXGRP (S_IXUSR>>3) # define S_IROTH (S_IRUSR>>6) # define S_IWOTH (S_IWUSR>>6) # define S_IXOTH (S_IXUSR>>6) #endif #ifndef S_IRWXU # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR) # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP) # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH) #endif END $cat > try.c < #include #include #include #include #include #include "try.h" #ifndef errno extern int errno; #endif #$d_union_semun HAS_UNION_SEMUN int main() { union semun #ifndef HAS_UNION_SEMUN { int val; struct semid_ds *buf; unsigned short *array; } #endif arg; int sem, st; #if defined(IPC_PRIVATE) && defined(S_IRWXU) && defined(S_IRWXG) && defined(S_IRWXO) && defined(IPC_CREAT) sem = semget(IPC_PRIVATE, 1, S_IRWXU|S_IRWXG|S_IRWXO|IPC_CREAT); if (sem > -1) { struct semid_ds argbuf; arg.buf = &argbuf; # ifdef IPC_STAT st = semctl(sem, 0, IPC_STAT, arg); if (st == 0) printf("semun\n"); else # endif /* IPC_STAT */ printf("semctl IPC_STAT failed: errno = %d\n", errno); # ifdef IPC_RMID if (semctl(sem, 0, IPC_RMID, arg) != 0) # endif /* IPC_RMID */ printf("semctl IPC_RMID failed: errno = %d\n", errno); } else #endif /* IPC_PRIVATE && ... */ printf("semget failed: errno = %d\n", errno); return 0; } END val="$undef" set try if eval $compile; then xxx=`./try` case "$xxx" in semun) val="$define" ;; esac fi $rm -f try try.c set d_semctl_semun eval $setvar case "$d_semctl_semun" in $define) echo "You can use union semun for semctl IPC_STAT." >&4 also='also' ;; *) echo "You cannot use union semun for semctl IPC_STAT." >&4 also='' ;; esac : see whether semctl IPC_STAT can use struct semid_ds pointer $cat > try.c <<'END' #include #include #include #include #include "try.h" #include #include #ifndef errno extern int errno; #endif int main() { struct semid_ds arg; int sem, st; #if defined(IPC_PRIVATE) && defined(S_IRWXU) && defined(S_IRWXG) && defined(S_IRWXO) && defined(IPC_CREAT) sem = semget(IPC_PRIVATE, 1, S_IRWXU|S_IRWXG|S_IRWXO|IPC_CREAT); if (sem > -1) { # ifdef IPC_STAT st = semctl(sem, 0, IPC_STAT, &arg); if (st == 0) printf("semid_ds\n"); else # endif /* IPC_STAT */ printf("semctl IPC_STAT failed: errno = %d\n", errno); # ifdef IPC_RMID if (semctl(sem, 0, IPC_RMID, &arg) != 0) # endif /* IPC_RMID */ printf("semctl IPC_RMID failed: errno = %d\n", errno); } else #endif /* IPC_PRIVATE && ... */ printf("semget failed: errno = %d\n", errno); return 0; } END val="$undef" set try if eval $compile; then xxx=`./try` case "$xxx" in semid_ds) val="$define" ;; esac fi $rm -f try try.c set d_semctl_semid_ds eval $setvar case "$d_semctl_semid_ds" in $define) echo "You can $also use struct semid_ds * for semctl IPC_STAT." >&4 ;; *) echo "You cannot use struct semid_ds * for semctl IPC_STAT." >&4 ;; esac $rm -f try.h ;; *) val="$undef" # We do not have the full sem*(2) library, so assume we can not # use either. set d_semctl_semun eval $setvar set d_semctl_semid_ds eval $setvar ;; esac : see if setegid exists set setegid d_setegid eval $inlibc : see if seteuid exists set seteuid d_seteuid eval $inlibc : see if setgrent exists set setgrent d_setgrent eval $inlibc : see if sethostent exists set sethostent d_sethent eval $inlibc : see if setlinebuf exists set setlinebuf d_setlinebuf eval $inlibc : see if setlocale exists set setlocale d_setlocale eval $inlibc : see if setnetent exists set setnetent d_setnent eval $inlibc : see if setprotoent exists set setprotoent d_setpent eval $inlibc : see if setpgid exists set setpgid d_setpgid eval $inlibc : see if setpgrp2 exists set setpgrp2 d_setpgrp2 eval $inlibc : see if setpriority exists set setpriority d_setprior eval $inlibc : see if setpwent exists set setpwent d_setpwent eval $inlibc : see if setregid exists set setregid d_setregid eval $inlibc set setresgid d_setresgid eval $inlibc : see if setreuid exists set setreuid d_setreuid eval $inlibc set setresuid d_setresuid eval $inlibc : see if setrgid exists set setrgid d_setrgid eval $inlibc : see if setruid exists set setruid d_setruid eval $inlibc : see if setservent exists set setservent d_setsent eval $inlibc : see if setsid exists set setsid d_setsid eval $inlibc : see if setvbuf exists set setvbuf d_setvbuf eval $inlibc : see if sfio.h is available set sfio.h i_sfio eval $inhdr : see if sfio library is available case "$i_sfio" in $define) val='' set sfreserve val eval $inlibc ;; *) val="$undef" ;; esac : Ok, but do we want to use it. case "$val" in $define) case "$usesfio" in true|$define|[yY]*) dflt='y';; *) dflt='n';; esac echo "$package can use the sfio library, but it is experimental." rp="You seem to have sfio available, do you want to try using it?" . ./myread case "$ans" in y|Y) ;; *) echo "Ok, avoiding sfio this time. I'll use stdio instead." val="$undef" : Remove sfio from list of libraries to use set `echo X $libs | $sed -e 's/-lsfio / /' -e 's/-lsfio$//'` shift libs="$*" echo "libs = $libs" >&4 ;; esac ;; *) case "$usesfio" in true|$define|[yY]*) echo "Sorry, cannot find sfio on this machine" >&4 echo "Ignoring your setting of usesfio=$usesfio" >&4 ;; esac ;; esac set d_sfio eval $setvar case "$d_sfio" in $define) usesfio='true';; *) usesfio='false';; esac : see if shmctl exists set shmctl d_shmctl eval $inlibc : see if shmget exists set shmget d_shmget eval $inlibc : see if shmat exists set shmat d_shmat eval $inlibc : see what shmat returns case "$d_shmat" in "$define") $cat >shmat.c <<'END' #include void *shmat(); END if $cc $ccflags -c shmat.c >/dev/null 2>&1; then shmattype='void *' else shmattype='char *' fi echo "and it returns ($shmattype)." >&4 : see if a prototype for shmat is available xxx=`./findhdr sys/shm.h` $cppstdin $cppflags $cppminus < $xxx > shmat.c 2>/dev/null if $contains 'shmat.*(' shmat.c >/dev/null 2>&1; then val="$define" else val="$undef" fi $rm -f shmat.[co] ;; *) val="$undef" ;; esac set d_shmatprototype eval $setvar : see if shmdt exists set shmdt d_shmdt eval $inlibc : see how much of the 'shm*(2)' library is present. h_shm=true echo " " case "$d_shmctl$d_shmget$d_shmat$d_shmdt" in *"$undef"*) h_shm=false;; esac case "$osname" in freebsd) case "`ipcs 2>&1`" in "SVID shared memory"*"not configured"*) echo "Your $osname does not have the shm*(2) configured." >&4 h_shm=false val="$undef" set shmctl d_shmctl evat $setvar set shmget d_shmget evat $setvar set shmat d_shmat evat $setvar set shmdt d_shmdt evat $setvar ;; esac ;; esac : we could also check for sys/ipc.h ... if $h_shm && $test `./findhdr sys/shm.h`; then echo "You have the full shm*(2) library." >&4 val="$define" else echo "You don't have the full shm*(2) library." >&4 val="$undef" fi set d_shm eval $setvar echo " " : see if we have sigaction if set sigaction val -f d_sigaction; eval $csym; $val; then echo 'sigaction() found.' >&4 $cat > try.c <<'EOP' #include #include #include main() { struct sigaction act, oact; } EOP set try if eval $compile_ok; then val="$define" else echo "But you don't seem to have a useable struct sigaction." >&4 val="$undef" fi else echo 'sigaction NOT found.' >&4 val="$undef" fi set d_sigaction; eval $setvar $rm -f try try$_o try.c : see if sigsetjmp exists echo " " case "$d_sigsetjmp" in '') $cat >try.c <<'EOP' #include sigjmp_buf env; int set = 1; main() { if (sigsetjmp(env,1)) exit(set); set = 0; siglongjmp(env, 1); exit(1); } EOP set try if eval $compile; then if ./try >/dev/null 2>&1; then echo "POSIX sigsetjmp found." >&4 val="$define" else $cat >&4 <&4 val="$undef" fi ;; *) val="$d_sigsetjmp" case "$d_sigsetjmp" in $define) echo "POSIX sigsetjmp found." >&4;; $undef) echo "sigsetjmp not found." >&4;; esac ;; esac set d_sigsetjmp eval $setvar $rm -f try.c try socketlib='' sockethdr='' : see whether socket exists echo " " $echo $n "Hmm... $c" >&4 if set socket val -f d_socket; eval $csym; $val; then echo "Looks like you have Berkeley networking support." >&4 d_socket="$define" if set setsockopt val -f; eval $csym; $val; then d_oldsock="$undef" else echo "...but it uses the old 4.1c interface, rather than 4.2" >&4 d_oldsock="$define" fi else if $contains socklib libc.list >/dev/null 2>&1; then echo "Looks like you have Berkeley networking support." >&4 d_socket="$define" : we will have to assume that it supports the 4.2 BSD interface d_oldsock="$undef" else echo "You don't have Berkeley networking in libc$_a..." >&4 if test -f /usr/lib/libnet$_a; then ( ($nm $nm_opt /usr/lib/libnet$_a | eval $nm_extract) || \ $ar t /usr/lib/libnet$_a) 2>/dev/null >> libc.list if $contains socket libc.list >/dev/null 2>&1; then echo "...but the Wollongong group seems to have hacked it in." >&4 socketlib="-lnet" sockethdr="-I/usr/netinclude" d_socket="$define" if $contains setsockopt libc.list >/dev/null 2>&1; then d_oldsock="$undef" else echo "...using the old 4.1c interface, rather than 4.2" >&4 d_oldsock="$define" fi else echo "or even in libnet$_a, which is peculiar." >&4 d_socket="$undef" d_oldsock="$undef" fi else echo "or anywhere else I see." >&4 d_socket="$undef" d_oldsock="$undef" fi fi fi : see if socketpair exists set socketpair d_sockpair eval $inlibc : see if stat knows about block sizes echo " " set d_statblks stat st_blocks $i_sysstat sys/stat.h eval $hasfield : see if _ptr and _cnt from stdio act std echo " " if $contains '_IO_fpos_t' `./findhdr stdio.h` >/dev/null 2>&1 ; then echo "(Looks like you have stdio.h from Linux.)" case "$stdio_ptr" in '') stdio_ptr='((fp)->_IO_read_ptr)' ptr_lval=$define ;; *) ptr_lval=$d_stdio_ptr_lval;; esac case "$stdio_cnt" in '') stdio_cnt='((fp)->_IO_read_end - (fp)->_IO_read_ptr)' cnt_lval=$undef ;; *) cnt_lval=$d_stdio_cnt_lval;; esac case "$stdio_base" in '') stdio_base='((fp)->_IO_read_base)';; esac case "$stdio_bufsiz" in '') stdio_bufsiz='((fp)->_IO_read_end - (fp)->_IO_read_base)';; esac else case "$stdio_ptr" in '') stdio_ptr='((fp)->_ptr)' ptr_lval=$define ;; *) ptr_lval=$d_stdio_ptr_lval;; esac case "$stdio_cnt" in '') stdio_cnt='((fp)->_cnt)' cnt_lval=$define ;; *) cnt_lval=$d_stdio_cnt_lval;; esac case "$stdio_base" in '') stdio_base='((fp)->_base)';; esac case "$stdio_bufsiz" in '') stdio_bufsiz='((fp)->_cnt + (fp)->_ptr - (fp)->_base)';; esac fi : test whether _ptr and _cnt really work echo "Checking how std your stdio is..." >&4 $cat >try.c < #define FILE_ptr(fp) $stdio_ptr #define FILE_cnt(fp) $stdio_cnt main() { FILE *fp = fopen("try.c", "r"); char c = getc(fp); if ( 18 <= FILE_cnt(fp) && strncmp(FILE_ptr(fp), "include \n", 18) == 0 ) exit(0); exit(1); } EOP val="$undef" set try if eval $compile; then if ./try; then echo "Your stdio acts pretty std." val="$define" else echo "Your stdio isn't very std." fi else echo "Your stdio doesn't appear very std." fi $rm -f try.c try set d_stdstdio eval $setvar : Can _ptr be used as an lvalue? case "$d_stdstdio$ptr_lval" in $define$define) val=$define ;; *) val=$undef ;; esac set d_stdio_ptr_lval eval $setvar : Can _cnt be used as an lvalue? case "$d_stdstdio$cnt_lval" in $define$define) val=$define ;; *) val=$undef ;; esac set d_stdio_cnt_lval eval $setvar : see if _base is also standard val="$undef" case "$d_stdstdio" in $define) $cat >try.c < #define FILE_base(fp) $stdio_base #define FILE_bufsiz(fp) $stdio_bufsiz main() { FILE *fp = fopen("try.c", "r"); char c = getc(fp); if ( 19 <= FILE_bufsiz(fp) && strncmp(FILE_base(fp), "#include \n", 19) == 0 ) exit(0); exit(1); } EOP set try if eval $compile; then if ./try; then echo "And its _base field acts std." val="$define" else echo "But its _base field isn't std." fi else echo "However, it seems to be lacking the _base field." fi $rm -f try.c try ;; esac set d_stdiobase eval $setvar : see if strcoll exists set strcoll d_strcoll eval $inlibc : check for structure copying echo " " echo "Checking to see if your C compiler can copy structs..." >&4 $cat >try.c <<'EOCP' main() { struct blurfl { int dyick; } foo, bar; foo = bar; } EOCP if $cc -c try.c >/dev/null 2>&1 ; then val="$define" echo "Yup, it can." else val="$undef" echo "Nope, it can't." fi set d_strctcpy eval $setvar $rm -f try.* : see if strerror and/or sys_errlist[] exist echo " " if test "X$d_strerror" = X -o "X$d_syserrlst" = X; then if set strerror val -f d_strerror; eval $csym; $val; then echo 'strerror() found.' >&4 d_strerror="$define" d_strerrm='strerror(e)' if set sys_errlist val -a d_syserrlst; eval $csym; $val; then echo "(You also have sys_errlist[], so we could roll our own strerror.)" d_syserrlst="$define" else echo "(Since you don't have sys_errlist[], sterror() is welcome.)" d_syserrlst="$undef" fi elif xxx=`./findhdr string.h`; test "$xxx" || xxx=`./findhdr strings.h`; \ $contains '#[ ]*define.*strerror' "$xxx" >/dev/null 2>&1; then echo 'strerror() found in string header.' >&4 d_strerror="$define" d_strerrm='strerror(e)' if set sys_errlist val -a d_syserrlst; eval $csym; $val; then echo "(Most probably, strerror() uses sys_errlist[] for descriptions.)" d_syserrlst="$define" else echo "(You don't appear to have any sys_errlist[], how can this be?)" d_syserrlst="$undef" fi elif set sys_errlist val -a d_syserrlst; eval $csym; $val; then echo "strerror() not found, but you have sys_errlist[] so we'll use that." >&4 d_strerror="$undef" d_syserrlst="$define" d_strerrm='((e)<0||(e)>=sys_nerr?"unknown":sys_errlist[e])' else echo 'strerror() and sys_errlist[] NOT found.' >&4 d_strerror="$undef" d_syserrlst="$undef" d_strerrm='"unknown"' fi fi : see if strtod exists set strtod d_strtod eval $inlibc : see if strtol exists set strtol d_strtol eval $inlibc : see if strtoul exists set strtoul d_strtoul eval $inlibc : see if strxfrm exists set strxfrm d_strxfrm eval $inlibc : see if symlink exists set symlink d_symlink eval $inlibc : see if syscall exists set syscall d_syscall eval $inlibc : see if sysconf exists set sysconf d_sysconf eval $inlibc : see if system exists set system d_system eval $inlibc : see if tcgetpgrp exists set tcgetpgrp d_tcgetpgrp eval $inlibc : see if tcsetpgrp exists set tcsetpgrp d_tcsetpgrp eval $inlibc : define an is-a-typedef? function typedef='type=$1; var=$2; def=$3; shift; shift; shift; inclist=$@; case "$inclist" in "") inclist="sys/types.h";; esac; eval "varval=\$$var"; case "$varval" in "") $rm -f temp.c; for inc in $inclist; do echo "#include <$inc>" >>temp.c; done; echo "#ifdef $type" >> temp.c; echo "printf(\"We have $type\");" >> temp.c; echo "#endif" >> temp.c; $cppstdin $cppflags $cppminus < temp.c >temp.E 2>/dev/null; if $contains $type temp.E >/dev/null 2>&1; then eval "$var=\$type"; else eval "$var=\$def"; fi; $rm -f temp.?;; *) eval "$var=\$varval";; esac' : define an is-a-typedef? function that prompts if the type is not available. typedef_ask='type=$1; var=$2; def=$3; shift; shift; shift; inclist=$@; case "$inclist" in "") inclist="sys/types.h";; esac; eval "varval=\$$var"; case "$varval" in "") $rm -f temp.c; for inc in $inclist; do echo "#include <$inc>" >>temp.c; done; echo "#ifdef $type" >> temp.c; echo "printf(\"We have $type\");" >> temp.c; echo "#endif" >> temp.c; $cppstdin $cppflags $cppminus < temp.c >temp.E 2>/dev/null; echo " " ; echo "$rp" | $sed -e "s/What is/Looking for/" -e "s/?/./"; if $contains $type temp.E >/dev/null 2>&1; then echo "$type found." >&4; eval "$var=\$type"; else echo "$type NOT found." >&4; dflt="$def"; . ./myread ; eval "$var=\$ans"; fi; $rm -f temp.?;; *) eval "$var=\$varval";; esac' : see if this is a sys/times.h system set sys/times.h i_systimes eval $inhdr : see if times exists echo " " if set times val -f d_times; eval $csym; $val; then echo 'times() found.' >&4 d_times="$define" inc='' case "$i_systimes" in "$define") inc='sys/times.h';; esac rp="What is the type returned by times() on this system?" set clock_t clocktype long stdio.h sys/types.h $inc eval $typedef_ask else echo 'times() NOT found, hope that will do.' >&4 d_times="$undef" clocktype='int' fi : see if truncate exists set truncate d_truncate eval $inlibc : see if tzname[] exists echo " " if set tzname val -a d_tzname; eval $csym; $val; then val="$define" echo 'tzname[] found.' >&4 else val="$undef" echo 'tzname[] NOT found.' >&4 fi set d_tzname eval $setvar : see if umask exists set umask d_umask eval $inlibc : see how we will look up host name echo " " if false; then : dummy stub to allow use of elif elif set uname val -f d_uname; eval $csym; $val; then if ./xenix; then $cat <<'EOM' uname() was found, but you're running xenix, and older versions of xenix have a broken uname(). If you don't really know whether your xenix is old enough to have a broken system call, use the default answer. EOM dflt=y case "$d_uname" in "$define") dflt=n;; esac rp='Is your uname() broken?' . ./myread case "$ans" in n*) d_uname="$define"; call=uname;; esac else echo 'uname() found.' >&4 d_uname="$define" call=uname fi fi case "$d_gethname" in '') d_gethname="$undef";; esac case "$d_uname" in '') d_uname="$undef";; esac case "$d_phostname" in '') d_phostname="$undef";; esac : backward compatibility for d_hvfork if test X$d_hvfork != X; then d_vfork="$d_hvfork" d_hvfork='' fi : see if there is a vfork val='' set vfork val eval $inlibc : Ok, but do we want to use it. vfork is reportedly unreliable in : perl on Solaris 2.x, and probably elsewhere. case "$val" in $define) echo " " case "$usevfork" in false) dflt='n';; *) dflt='y';; esac rp="Some systems have problems with vfork(). Do you want to use it?" . ./myread case "$ans" in y|Y) ;; *) echo "Ok, we won't use vfork()." val="$undef" ;; esac ;; esac set d_vfork eval $setvar case "$d_vfork" in $define) usevfork='true';; *) usevfork='false';; esac : see if this is an sysdir system set sys/dir.h i_sysdir eval $inhdr : see if this is an sysndir system set sys/ndir.h i_sysndir eval $inhdr : see if sys/types.h has to be included set sys/types.h i_systypes eval $inhdr : see if closedir exists set closedir d_closedir eval $inlibc case "$d_closedir" in "$define") echo " " echo "Checking whether closedir() returns a status..." >&4 cat > closedir.c < #endif #if defined(I_DIRENT) #include #if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */ #include #endif #else #ifdef I_SYS_NDIR #include #else #ifdef I_SYS_DIR #ifdef hp9000s500 #include /* may be wrong in the future */ #else #include #endif #endif #endif #endif int main() { return closedir(opendir(".")); } EOM set closedir if eval $compile_ok; then if ./closedir > /dev/null 2>&1 ; then echo "Yes, it does." val="$undef" else echo "No, it doesn't." val="$define" fi else echo "(I can't seem to compile the test program--assuming it doesn't)" val="$define" fi ;; *) val="$undef"; ;; esac set d_void_closedir eval $setvar $rm -f closedir* : check for volatile keyword echo " " echo 'Checking to see if your C compiler knows about "volatile"...' >&4 $cat >try.c <<'EOCP' main() { typedef struct _goo_struct goo_struct; goo_struct * volatile goo = ((goo_struct *)0); struct _goo_struct { long long_int; int reg_int; char char_var; }; typedef unsigned short foo_t; char *volatile foo; volatile int bar; volatile foo_t blech; foo = foo; } EOCP if $cc -c $ccflags try.c >/dev/null 2>&1 ; then val="$define" echo "Yup, it does." else val="$undef" echo "Nope, it doesn't." fi set d_volatile eval $setvar $rm -f try.* : see if there is a wait4 set wait4 d_wait4 eval $inlibc : see if waitpid exists set waitpid d_waitpid eval $inlibc : see if wcstombs exists set wcstombs d_wcstombs eval $inlibc : see if wctomb exists set wctomb d_wctomb eval $inlibc : preserve RCS keywords in files with variable substitution, grrr Date='$Date' Id='$Id' Log='$Log' RCSfile='$RCSfile' Revision='$Revision' : check for alignment requirements echo " " case "$alignbytes" in '') echo "Checking alignment constraints..." >&4 $cat >try.c <<'EOCP' struct foobar { char foo; double bar; } try; main() { printf("%d\n", (char *)&try.bar - (char *)&try.foo); } EOCP set try if eval $compile_ok; then dflt=`./try` else dflt='8' echo "(I can't seem to compile the test program...)" fi ;; *) dflt="$alignbytes" ;; esac rp="Doubles must be aligned on a how-many-byte boundary?" . ./myread alignbytes="$ans" $rm -f try.c try : check for ordering of bytes in a long case "$byteorder" in '') $cat <<'EOM' In the following, larger digits indicate more significance. A big-endian machine like a Pyramid or a Motorola 680?0 chip will come out to 4321. A little-endian machine like a Vax or an Intel 80?86 chip would be 1234. Other machines may have weird orders like 3412. A Cray will report 87654321. If the test program works the default is probably right. I'm now running the test program... EOM $cat >try.c <<'EOCP' #include main() { int i; union { unsigned long l; char c[sizeof(long)]; } u; if (sizeof(long) > 4) u.l = (0x08070605L << 32) | 0x04030201L; else u.l = 0x04030201L; for (i = 0; i < sizeof(long); i++) printf("%c", u.c[i]+'0'); printf("\n"); exit(0); } EOCP xxx_prompt=y set try if eval $compile && ./try > /dev/null; then dflt=`./try` case "$dflt" in [1-4][1-4][1-4][1-4]|12345678|87654321) echo "(The test program ran ok.)" echo "byteorder=$dflt" xxx_prompt=n ;; ????|????????) echo "(The test program ran ok.)" ;; *) echo "(The test program didn't run right for some reason.)" ;; esac else dflt='4321' cat <<'EOM' (I can't seem to compile the test program. Guessing big-endian...) EOM fi case "$xxx_prompt" in y) rp="What is the order of bytes in a long?" . ./myread byteorder="$ans" ;; *) byteorder=$dflt ;; esac ;; esac $rm -f try.c try : how do we catenate cpp tokens here? echo " " echo "Checking to see how your cpp does stuff like catenate tokens..." >&4 $cat >cpp_stuff.c <<'EOCP' #define RCAT(a,b)a/**/b #define ACAT(a,b)a ## b RCAT(Rei,ser) ACAT(Cir,cus) EOCP $cppstdin $cppflags $cppminus cpp_stuff.out 2>&1 if $contains 'Circus' cpp_stuff.out >/dev/null 2>&1; then echo "Oh! Smells like ANSI's been here." >&4 echo "We can catify or stringify, separately or together!" cpp_stuff=42 elif $contains 'Reiser' cpp_stuff.out >/dev/null 2>&1; then echo "Ah, yes! The good old days!" >&4 echo "However, in the good old days we don't know how to stringify and" echo "catify at the same time." cpp_stuff=1 else $cat >&4 <&4 $cat >try.c < #include #include main() { #ifdef DB_VERSION_MAJOR /* DB version >= 2 */ int Major, Minor, Patch ; unsigned long Version ; (void)db_version(&Major, &Minor, &Patch) ; printf("You have Berkeley DB Version 2 or greater\n"); printf("db.h is from Berkeley DB Version %d.%d.%d\n", DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH); printf("libdb is from Berkeley DB Version %d.%d.%d\n", Major, Minor, Patch) ; /* check that db.h & libdb are compatible */ if (DB_VERSION_MAJOR != Major || DB_VERSION_MINOR != Minor || DB_VERSION_PATCH != Patch) { printf("db.h and libdb are incompatible\n") ; exit(3); } printf("db.h and libdb are compatible\n") ; Version = DB_VERSION_MAJOR * 1000000 + DB_VERSION_MINOR * 1000 + DB_VERSION_PATCH ; /* needs to be >= 2.3.4 */ if (Version < 2003004) { /* if (DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR == 0 && DB_VERSION_PATCH < 5) { */ printf("but Perl needs Berkeley DB 2.3.4 or greater\n") ; exit(2); } exit(0); #else #if defined(_DB_H_) && defined(BTREEMAGIC) && defined(HASHMAGIC) printf("You have Berkeley DB Version 1\n"); exit(0); /* DB version < 2: the coast is clear. */ #else exit(1); /* not Berkeley DB? */ #endif #endif } EOCP set try if eval $compile && ./try; then echo 'Looks OK.' >&4 else echo "I can't use Berkeley DB with your . I'll disable Berkeley DB." >&4 i_db=$undef case " $libs " in *"-ldb "*) : Remove db from list of libraries to use echo "Removing unusable -ldb from library list" >&4 set `echo X $libs | $sed -e 's/-ldb / /' -e 's/-ldb$//'` shift libs="$*" echo "libs = $libs" >&4 ;; esac fi $rm -f try.* ;; esac case "$i_db" in define) : Check the return type needed for hash echo " " echo "Checking return type needed for hash for Berkeley DB ..." >&4 $cat >try.c < #include #ifndef DB_VERSION_MAJOR u_int32_t hash_cb (ptr, size) const void *ptr; size_t size; { } HASHINFO info; main() { info.hash = hash_cb; } #endif EOCP if $cc $ccflags -c try.c >try.out 2>&1 ; then if $contains warning try.out >>/dev/null 2>&1 ; then db_hashtype='int' else db_hashtype='u_int32_t' fi else : XXX Maybe we should just give up here. db_hashtype=u_int32_t $cat try.out >&4 echo "Help: I can't seem to compile the db test program." >&4 echo "Something's wrong, but I'll assume you use $db_hashtype." >&4 fi $rm -f try.* echo "Your version of Berkeley DB uses $db_hashtype for hash." ;; *) db_hashtype=u_int32_t ;; esac case "$i_db" in define) : Check the return type needed for prefix echo " " echo "Checking return type needed for prefix for Berkeley DB ..." >&4 cat >try.c < #include #ifndef DB_VERSION_MAJOR size_t prefix_cb (key1, key2) const DBT *key1; const DBT *key2; { } BTREEINFO info; main() { info.prefix = prefix_cb; } #endif EOCP if $cc $ccflags -c try.c >try.out 2>&1 ; then if $contains warning try.out >>/dev/null 2>&1 ; then db_prefixtype='int' else db_prefixtype='size_t' fi else db_prefixtype='size_t' : XXX Maybe we should just give up here. $cat try.out >&4 echo "Help: I can't seem to compile the db test program." >&4 echo "Something's wrong, but I'll assume you use $db_prefixtype." >&4 fi $rm -f try.* echo "Your version of Berkeley DB uses $db_prefixtype for prefix." ;; *) db_prefixtype='size_t' ;; esac : check for void type echo " " echo "Checking to see how well your C compiler groks the void type..." >&4 case "$voidflags" in '') $cat >try.c <<'EOCP' #if TRY & 1 void sub() { #else sub() { #endif extern void moo(); /* function returning void */ void (*goo)(); /* ptr to func returning void */ #if TRY & 8 void *hue; /* generic ptr */ #endif #if TRY & 2 void (*foo[10])(); #endif #if TRY & 4 if(goo == moo) { exit(0); } #endif exit(0); } main() { sub(); } EOCP if $cc $ccflags -c -DTRY=$defvoidused try.c >.out 2>&1 ; then voidflags=$defvoidused echo "Good. It appears to support void to the level $package wants.">&4 if $contains warning .out >/dev/null 2>&1; then echo "However, you might get some warnings that look like this:" $cat .out fi else echo "Hmm, your compiler has some difficulty with void. Checking further..." >&4 if $cc $ccflags -c -DTRY=1 try.c >/dev/null 2>&1; then echo "It supports 1..." if $cc $ccflags -c -DTRY=3 try.c >/dev/null 2>&1; then echo "It also supports 2..." if $cc $ccflags -c -DTRY=7 try.c >/dev/null 2>&1; then voidflags=7 echo "And it supports 4 but not 8 definitely." else echo "It doesn't support 4..." if $cc $ccflags -c -DTRY=11 try.c >/dev/null 2>&1; then voidflags=11 echo "But it supports 8." else voidflags=3 echo "Neither does it support 8." fi fi else echo "It does not support 2..." if $cc $ccflags -c -DTRY=13 try.c >/dev/null 2>&1; then voidflags=13 echo "But it supports 4 and 8." else if $cc $ccflags -c -DTRY=5 try.c >/dev/null 2>&1; then voidflags=5 echo "And it supports 4 but has not heard about 8." else echo "However it supports 8 but not 4." fi fi fi else echo "There is no support at all for void." voidflags=0 fi fi esac case "$voidflags" in "$defvoidused") ;; *) $cat >&4 <<'EOM' Support flag bits are: 1: basic void declarations. 2: arrays of pointers to functions returning void. 4: operations between pointers to and addresses of void functions. 8: generic void pointers. EOM dflt="$voidflags"; rp="Your void support flags add up to what?" . ./myread voidflags="$ans" ;; esac $rm -f try.* .out : How can we generate normalized random numbers ? echo " " case "$randfunc" in '') if set drand48 val -f; eval $csym; $val; then dflt="drand48" echo "Good, found drand48()." >&4 elif set random val -f; eval $csym; $val; then dflt="random" echo "OK, found random()." >&4 else dflt="rand" echo "Yick, looks like I have to use rand()." >&4 fi echo " " ;; *) dflt="$randfunc" ;; esac cont=true case "$ccflags" in *-Dmy_rand=*|*-Dmy_srand=*) echo "Removing obsolete -Dmy_rand, -Dmy_srand, and -Drandbits from ccflags." >&4 ccflags="`echo $ccflags | sed -e 's/-Dmy_rand=random/ /'`" ccflags="`echo $ccflags | sed -e 's/-Dmy_srand=srandom/ /'`" ccflags="`echo $ccflags | sed -e 's/-Drandbits=[0-9][0-9]*/ /'`" ;; esac while $test "$cont"; do rp="Use which function to generate random numbers?" . ./myread if $test "$ans" = "$dflt"; then : null else randbits='' fi randfunc="$ans" if set $ans val -f; eval $csym; $val; then cont='' else dflt=n rp="Function $ans does not exists. Use that name anyway?" . ./myread dflt=rand case "$ans" in [yY]*) cont='';; esac fi case "$cont" in '') case "$randfunc" in drand48) drand01="drand48()" seedfunc="srand48" randbits=48 randseedtype=long ;; rand|random) case "$randbits" in '') echo "Checking to see how many bits your $randfunc() function produces..." >&4 $cat >try.c < #ifdef I_UNISTD # include #endif #ifdef I_STDLIB # include #endif main() { register int i; register unsigned long tmp; register unsigned long max = 0L; for (i = 1000; i; i--) { tmp = (unsigned long) $randfunc(); if (tmp > max) max = tmp; } for (i = 0; max; i++) max /= 2; printf("%d\n",i); } EOCP set try if eval $compile_ok; then dflt=`try` else dflt='?' echo "(I can't seem to compile the test program...)" fi ;; *) dflt="$randbits" ;; esac rp="How many bits does your $randfunc() function produce?" . ./myread randbits="$ans" $rm -f try.c try drand01="($randfunc() / (double) ((unsigned long)1 << $randbits))" seedfunc="s$randfunc" randseedtype=unsigned ;; *) dflt="31" rp="How many bits does your $randfunc() function produce?" . ./myread randbits="$ans" seedfunc="s$randfunc" drand01="($randfunc() / (double) ((unsigned long)1 << $randbits))" if set $seedfunc val -f; eval $csym; $val; then echo "(Using $seedfunc() to seed random generator)" else echo "(Warning: no $seedfunc() to seed random generator)" seedfunc=rand fi randseedtype=unsigned ;; esac ;; esac done echo " " echo "Determining whether or not we are on an EBCDIC system..." >&4 $cat >tebcdic.c <<'EOM' int main() { if ('M'==0xd4) return 0; return 1; } EOM val=$undef set tebcdic if eval $compile_ok; then if ./tebcdic; then echo "You have EBCDIC." >&4 val="$define" else echo "Nope, no EBCDIC. Assuming ASCII or some ISO Latin." >&4 fi else echo "$me: I'm unable to compile the test program." >&4 echo "I'll assume ASCII or some ISO Latin." >&4 fi $rm -f tebcdic.c tebcdic set ebcdic eval $setvar : see what type file positions are declared as in the library rp="What is the type for file position used by fsetpos()?" set fpos_t fpostype long stdio.h sys/types.h eval $typedef_ask : get csh whereabouts case "$csh" in 'csh') val="$undef" ;; *) val="$define" ;; esac set d_csh eval $setvar : Respect a hint or command line value for full_csh. case "$full_csh" in '') full_csh=$csh ;; esac : Store the full pathname to the sed program for use in the C program full_sed=$sed : see what type gids are declared as in the kernel echo " " echo "Looking for the type for group ids returned by getgid()." set gid_t gidtype xxx stdio.h sys/types.h eval $typedef case "$gidtype" in xxx) xxx=`./findhdr sys/user.h` set `grep 'groups\[NGROUPS\];' "$xxx" 2>/dev/null` unsigned short case $1 in unsigned) dflt="$1 $2" ;; *) dflt="$1" ;; esac ;; *) dflt="$gidtype";; esac case "$gidtype" in gid_t) echo "gid_t found." ;; *) rp="What is the type for group ids returned by getgid()?" . ./myread gidtype="$ans" ;; esac : see if getgroups exists set getgroups d_getgrps eval $inlibc : see if setgroups exists set setgroups d_setgrps eval $inlibc : Find type of 2nd arg to 'getgroups()' and 'setgroups()' echo " " case "$d_getgrps$d_setgrps" in *define*) case "$groupstype" in '') dflt="$gidtype" ;; *) dflt="$groupstype" ;; esac $cat <&4 $cat >try.c < #include main() { printf("%d\n", sizeof($lseektype)); } EOCP set try if eval $compile_ok; then lseeksize=`./try` $echo " $lseeksize bytes." >&4 else dflt='4' echo " " echo "(I can't seem to compile the test program. Guessing...)" rp="What is the size of your file offsets (in bytes)?" . ./myread lseeksize="$ans" fi $rm -f try.c try echo " " echo "Checking if your $make program sets \$(MAKE)..." >&4 case "$make_set_make" in '') $sed 's/^X //' > testmake.mak << 'EOF' Xall: X @echo 'maketemp="$(MAKE)"' EOF case "`$make -f testmake.mak 2>/dev/null`" in *maketemp=*) make_set_make='#' ;; *) make_set_make="MAKE=$make" ;; esac $rm -f testmake.mak ;; esac case "$make_set_make" in '#') echo "Yup, it does.";; *) echo "Nope, it doesn't.";; esac : see what type is used for mode_t rp="What is the type used for file modes for system calls (e.g. fchmod())?" set mode_t modetype int stdio.h sys/types.h eval $typedef_ask : define a fucntion to check prototypes $cat > protochk <> protochk <<'EOSH' $rm -f try.c foo="$1" shift while test $# -ge 2; do case "$1" in $define) echo "#include <$2>" >> try.c ;; literal) echo "$2" >> try.c ;; esac shift 2 done test "$prototype" = "$define" && echo '#define CAN_PROTOTYPE' >> try.c cat >> try.c <<'EOCP' #ifdef CAN_PROTOTYPE #define _(args) args #else #define _(args) () #endif EOCP echo "$foo" >> try.c echo 'int no_real_function_has_this_name _((void)) { return 0; }' >> try.c $cc $optimize $ccflags -c try.c > /dev/null 2>&1 status=$? $rm -f try.[co] exit $status EOSH chmod +x protochk $eunicefix protochk : see what type is used for size_t rp="What is the type used for the length parameter for string functions?" set size_t sizetype 'unsigned int' stdio.h sys/types.h eval $typedef_ask : check for type of arguments to gethostbyaddr. if test "X$netdb_host_type" = X -o "X$netdb_hlen_type" = X; then case "$d_gethbyaddr" in $define) $cat <try.c < main() { pthread_attr_t attr; int state = 0; pthread_attr_init(&attr); #ifdef POINTER pthread_attr_setdetachstate(&attr, &state); #else pthread_attr_setdetachstate(&attr, state); #endif } EOP set try if eval $compile; then val="$undef" else set try -DPOINTER if eval $compile; then val="$define" else val="$undef" fi fi set pthread_setdetachstate_pointer eval $setvar $rm -f try try.* : check for length of pointer echo " " case "$ptrsize" in '') $echo $n "Checking to see how big your pointers are...$c" >&4 if test "$voidflags" -gt 7; then echo '#define VOID_PTR char *' > try.c else echo '#define VOID_PTR void *' > try.c fi $cat >>try.c <<'EOCP' #include main() { printf("%d\n", sizeof(VOID_PTR)); exit(0); } EOCP set try if eval $compile_ok; then ptrsize=`./try` $echo " $ptrsize bytes." >&4 else dflt='4' echo "(I can't seem to compile the test program. Guessing...)" >&4 rp="What is the size of a pointer (in bytes)?" . ./myread ptrsize="$ans" fi ;; esac $rm -f try.c try : see if ar generates random libraries by itself echo " " echo "Checking how to generate random libraries on your machine..." >&4 echo 'int bar1() { return bar2(); }' > bar1.c echo 'int bar2() { return 2; }' > bar2.c $cat > foo.c <<'EOP' main() { printf("%d\n", bar1()); exit(0); } EOP $cc $ccflags -c bar1.c >/dev/null 2>&1 $cc $ccflags -c bar2.c >/dev/null 2>&1 $cc $ccflags -c foo.c >/dev/null 2>&1 $ar rc bar$_a bar2$_o bar1$_o >/dev/null 2>&1 if $cc $ccflags $ldflags -o foobar foo$_o bar$_a $libs > /dev/null 2>&1 && ./foobar >/dev/null 2>&1; then echo "$ar appears to generate random libraries itself." orderlib=false ranlib=":" elif $ar ts bar$_a >/dev/null 2>&1 && $cc $ccflags $ldflags -o foobar foo$_o bar$_a $libs > /dev/null 2>&1 && ./foobar >/dev/null 2>&1; then echo "a table of contents needs to be added with '$ar ts'." orderlib=false ranlib="$ar ts" else case "$ranlib" in :) ranlib='';; '') ranlib=`./loc ranlib X /usr/bin /bin /usr/local/bin` $test -f $ranlib || ranlib='' ;; esac if $test -n "$ranlib"; then echo "your system has '$ranlib'; we'll use that." orderlib=false else echo "your system doesn't seem to support random libraries" echo "so we'll use lorder and tsort to order the libraries." orderlib=true ranlib=":" fi fi $rm -f foo* bar* : see whether the various POSIXish _yields exist within given cccmd $cat >try.c < #include main() { #ifdef SCHED_YIELD sched_yield(); #else #ifdef PTHREAD_YIELD pthread_yield(); #else #ifdef PTHREAD_YIELD_NULL pthread_yield(NULL); #endif #endif #endif } EOP : see if sched_yield exists set try -DSCHED_YIELD if eval $compile; then val="$define" echo 'sched_yield() found.' >&4 sched_yield='sched_yield()' else val="$undef" echo 'sched_yield() NOT found.' >&4 fi set d_sched_yield eval $setvar : see if pthread_yield exists set try -DPTHREAD_YIELD if eval $compile; then val="$define" case "$sched_yield" in '') sched_yield='pthread_yield()' ;; esac else set try -DPTHREAD_YIELD_NULL if eval $compile; then val="$define" case "$sched_yield" in '') sched_yield='pthread_yield(NULL)' ;; esac else val="$undef" fi fi case "$val" in $define) echo 'pthread_yield() found.' >&4 ;; *) echo 'pthread_yield() NOT found.' >&4 ;; esac set d_pthread_yield eval $setvar case "$sched_yield" in '') sched_yield=undef ;; esac $rm -f try try.* : see if sys/select.h has to be included set sys/select.h i_sysselct eval $inhdr : see if we should include time.h, sys/time.h, or both echo " " if test "X$timeincl" = X; then echo "Testing to see if we should include , or both." >&4 $echo $n "I'm now running the test program...$c" $cat >try.c <<'EOCP' #include #ifdef I_TIME #include #endif #ifdef I_SYSTIME #ifdef SYSTIMEKERNEL #define KERNEL #endif #include #endif #ifdef I_SYSSELECT #include #endif main() { struct tm foo; #ifdef S_TIMEVAL struct timeval bar; #endif #ifdef S_TIMEZONE struct timezone tzp; #endif if (foo.tm_sec == foo.tm_sec) exit(0); #ifdef S_TIMEVAL if (bar.tv_sec == bar.tv_sec) exit(0); #endif exit(1); } EOCP flags='' for s_timezone in '-DS_TIMEZONE' ''; do sysselect='' for s_timeval in '-DS_TIMEVAL' ''; do for i_systimek in '' '-DSYSTIMEKERNEL'; do for i_time in '' '-DI_TIME'; do for i_systime in '-DI_SYSTIME' ''; do case "$flags" in '') $echo $n ".$c" set try $i_time $i_systime $i_systimek $sysselect $s_timeval $s_timezone if eval $compile; then set X $i_time $i_systime $i_systimek $sysselect $s_timeval shift flags="$*" echo " " $echo $n "Succeeded with $flags$c" fi ;; esac done done done done done timeincl='' echo " " case "$flags" in *SYSTIMEKERNEL*) i_systimek="$define" timeincl=`./findhdr sys/time.h` echo "We'll include with KERNEL defined." >&4;; *) i_systimek="$undef";; esac case "$flags" in *I_TIME*) i_time="$define" timeincl=`./findhdr time.h`" $timeincl" echo "We'll include ." >&4;; *) i_time="$undef";; esac case "$flags" in *I_SYSTIME*) i_systime="$define" timeincl=`./findhdr sys/time.h`" $timeincl" echo "We'll include ." >&4;; *) i_systime="$undef";; esac $rm -f try.c try fi : check for fd_set items $cat <fd_set.c < #ifdef HAS_SOCKET #include /* Might include */ #endif #ifdef I_SYS_TIME #include #endif #ifdef I_SYS_SELECT #include #endif main() { fd_set fds; #ifdef TRYBITS if(fds.fds_bits); #endif #if defined(FD_SET) && defined(FD_CLR) && defined(FD_ISSET) && defined(FD_ZERO) exit(0); #else exit(1); #endif } EOCP set fd_set -DTRYBITS if eval $compile; then d_fds_bits="$define" d_fd_set="$define" echo "Well, your system knows about the normal fd_set typedef..." >&4 if ./fd_set; then echo "and you have the normal fd_set macros (just as I'd expect)." >&4 d_fd_macros="$define" else $cat >&4 <<'EOM' but not the normal fd_set macros! Gaaack! I'll have to cover for you. EOM d_fd_macros="$undef" fi else $cat <<'EOM' Hmm, your compiler has some difficulty with fd_set. Checking further... EOM set fd_set if eval $compile; then d_fds_bits="$undef" d_fd_set="$define" echo "Well, your system has some sort of fd_set available..." >&4 if ./fd_set; then echo "and you have the normal fd_set macros." >&4 d_fd_macros="$define" else $cat <<'EOM' but not the normal fd_set macros! Gross! More work for me... EOM d_fd_macros="$undef" fi else echo "Well, you got zip. That's OK, I can roll my own fd_set stuff." >&4 d_fd_set="$undef" d_fds_bits="$undef" d_fd_macros="$undef" fi fi $rm -f fd_set* : check for type of arguments to select. case "$selecttype" in '') case "$d_select" in $define) $cat <try.c < #$i_time I_TIME #$i_systime I_SYS_TIME #$i_systimek I_SYS_TIME_KERNEL #ifdef I_TIME # include #endif #ifdef I_SYS_TIME # ifdef I_SYS_TIME_KERNEL # define KERNEL # endif # include # ifdef I_SYS_TIME_KERNEL # undef KERNEL # endif #endif #$i_sysselct I_SYS_SELECT #ifdef I_SYS_SELECT #include #endif #include $selecttype b; #define S sizeof(*(b)) #define MINBITS 64 #define NBYTES (S * 8 > MINBITS ? S : MINBITS/8) #define NBITS (NBYTES * 8) int main() { char s[NBYTES]; struct timeval t; int i; FILE* fp; int fd; fclose(stdin); fp = fopen("try.c", "r"); if (fp == 0) exit(1); fd = fileno(fp); if (fd < 0) exit(2); b = ($selecttype)s; for (i = 0; i < NBITS; i++) FD_SET(i, b); t.tv_sec = 0; t.tv_usec = 0; select(fd + 1, b, 0, 0, &t); for (i = NBITS - 1; i > fd && FD_ISSET(i, b); i--); printf("%d\n", i + 1); return 0; } EOCP set try if eval $compile_ok; then selectminbits=`./try` case "$selectminbits" in '') cat >&4 <&4 else rp='What is the minimum number of bits your select() operates on?' case "$byteorder" in 1234|12345678) dflt=32 ;; *) dflt=1 ;; esac . ./myread val=$ans selectminbits="$val" fi $rm -f try.* try ;; *) : no select, so pick a harmless default selectminbits='32' ;; esac ;; esac : Trace out the files included by signal.h, then look for SIGxxx names. : Remove SIGARRAYSIZE used by HPUX. : Remove SIGTYP void lines used by OS2. xxx=`echo '#include ' | $cppstdin $cppminus $cppflags 2>/dev/null | $grep '^[ ]*#.*include' | $awk "{print \\$$fieldn}" | $sed 's!"!!g' | $sort | $uniq` : Check this list of files to be sure we have parsed the cpp output ok. : This will also avoid potentially non-existent files, such : as ../foo/bar.h xxxfiles='' for xx in $xxx /dev/null ; do $test -f "$xx" && xxxfiles="$xxxfiles $xx" done : If we have found no files, at least try signal.h case "$xxxfiles" in '') xxxfiles=`./findhdr signal.h` ;; esac xxx=`awk ' $1 ~ /^#define$/ && $2 ~ /^SIG[A-Z0-9]*$/ && $2 !~ /SIGARRAYSIZE/ && $3 !~ /void/ { print substr($2, 4, 20) } $1 == "#" && $2 ~ /^define$/ && $3 ~ /^SIG[A-Z0-9]*$/ && $3 !~ /SIGARRAYSIZE/ && $4 !~ /void/ { print substr($3, 4, 20) }' $xxxfiles` : Append some common names just in case the awk scan failed. xxx="$xxx ABRT ALRM BUS CHLD CLD CONT DIL EMT FPE HUP ILL INT IO IOT KILL" xxx="$xxx LOST PHONE PIPE POLL PROF PWR QUIT SEGV STKFLT STOP SYS TERM TRAP" xxx="$xxx TSTP TTIN TTOU URG USR1 USR2 USR3 USR4 VTALRM" xxx="$xxx WINCH WIND WINDOW XCPU XFSZ" : generate a few handy files for later $cat > signal.c <<'EOCP' #include #include #include int main() { /* Strange style to avoid deeply-nested #if/#else/#endif */ #ifndef NSIG # ifdef _NSIG # define NSIG (_NSIG) # endif #endif #ifndef NSIG # ifdef SIGMAX # define NSIG (SIGMAX+1) # endif #endif #ifndef NSIG # ifdef SIG_MAX # define NSIG (SIG_MAX+1) # endif #endif #ifndef NSIG # ifdef MAXSIG # define NSIG (MAXSIG+1) # endif #endif #ifndef NSIG # ifdef MAX_SIG # define NSIG (MAX_SIG+1) # endif #endif #ifndef NSIG # ifdef SIGARRAYSIZE # define NSIG (SIGARRAYSIZE+1) /* Not sure of the +1 */ # endif #endif #ifndef NSIG # ifdef _sys_nsig # define NSIG (_sys_nsig) /* Solaris 2.5 */ # endif #endif /* Default to some arbitrary number that's big enough to get most of the common signals. */ #ifndef NSIG # define NSIG 50 #endif printf("NSIG %d\n", NSIG); #ifndef JUST_NSIG EOCP echo $xxx | $tr ' ' $trnl | $sort | $uniq | $awk ' { printf "#ifdef SIG"; printf $1; printf "\n" printf "printf(\""; printf $1; printf " %%d\\n\",SIG"; printf $1; printf ");\n" printf "#endif\n" } END { printf "#endif /* JUST_NSIG */\n"; printf "}\n"; } ' >>signal.c $cat >signal.awk <<'EOP' BEGIN { ndups = 0 } $1 ~ /^NSIG$/ { nsig = $2 } ($1 !~ /^NSIG$/) && (NF == 2) { if ($2 > maxsig) { maxsig = $2 } if (sig_name[$2]) { dup_name[ndups] = $1 dup_num[ndups] = $2 ndups++ } else { sig_name[$2] = $1 sig_num[$2] = $2 } } END { if (nsig == 0) { nsig = maxsig + 1 } for (n = 1; n < nsig; n++) { if (sig_name[n]) { printf("%s %d\n", sig_name[n], sig_num[n]) } else { printf("NUM%d %d\n", n, n) } } for (n = 0; n < ndups; n++) { printf("%s %d\n", dup_name[n], dup_num[n]) } } EOP $cat >signal_cmd <>signal_cmd <<'EOS' set signal if eval $compile_ok; then ./signal$_exe | $sort -n +1 | $uniq | $awk -f signal.awk >signal.lst else echo "(I can't seem be able to compile the whole test program)" >&4 echo "(I'll try it in little pieces.)" >&4 set signal -DJUST_NSIG if eval $compile_ok; then ./signal$_exe > signal.nsg $cat signal.nsg else echo "I can't seem to figure out how many signals you have." >&4 echo "Guessing 50." >&4 echo 'NSIG 50' > signal.nsg fi : Now look at all the signal names, one at a time. for xx in `echo $xxx | $tr ' ' $trnl | $sort | $uniq`; do $cat > signal.c < #include #include int main() { printf("$xx %d\n", SIG${xx}); return 0; } EOCP set signal if eval $compile; then echo "SIG${xx} found." ./signal$_exe >> signal.ls1 else echo "SIG${xx} NOT found." fi done if $test -s signal.ls1; then $cat signal.nsg signal.ls1 | $sort -n +1 | $uniq | $awk -f signal.awk >signal.lst fi fi if $test -s signal.lst; then : else echo "(AAK! I can't compile the test programs -- Guessing)" >&4 echo 'kill -l' >signal set X `csh -f signal.lst fi $rm -f signal.c signal$_exe signal$_o signal.nsg signal.ls1 EOS chmod a+x signal_cmd $eunicefix signal_cmd : generate list of signal names echo " " case "$sig_name_init" in '') echo "Generating a list of signal names and numbers..." >&4 . ./signal_cmd sig_name=`$awk '{printf "%s ", $1}' signal.lst` sig_name="ZERO $sig_name" sig_name_init=`$awk 'BEGIN { printf "\"ZERO\", " } { printf "\"%s\", ", $1 } END { printf "0\n" }' signal.lst` sig_num=`$awk 'BEGIN { printf "0, " } { printf "%d, ", $2} END { printf "0\n"}' signal.lst` ;; esac echo "The following signals are available:" echo " " echo $sig_name | $awk \ 'BEGIN { linelen = 0 } { for (i = 1; i <= NF; i++) { name = "SIG" $i " " linelen = linelen + length(name) if (linelen > 70) { printf "\n" linelen = length(name) } printf "%s", name } printf "\n" }' $rm -f signal signal.c signal.awk signal.lst signal_cmd : see what type is used for signed size_t set ssize_t ssizetype int stdio.h sys/types.h eval $typedef dflt="$ssizetype" $cat > ssize.c < #include #define Size_t $sizetype #define SSize_t $dflt main() { if (sizeof(Size_t) == sizeof(SSize_t)) printf("$dflt\n"); else if (sizeof(Size_t) == sizeof(int)) printf("int\n"); else printf("long\n"); exit(0); } EOM echo " " set ssize if eval $compile_ok && ./ssize > /dev/null; then ssizetype=`./ssize` echo "I'll be using $ssizetype for functions returning a byte count." >&4 else $cat >&4 </dev/null 2>&1 ; then echo "Your stdio uses unsigned chars." >&4 stdchar="unsigned char" else echo "Your stdio uses signed chars." >&4 stdchar="char" fi : see if time exists echo " " if test "X$d_time" = X -o X"$timetype" = X; then if set time val -f d_time; eval $csym; $val; then echo 'time() found.' >&4 val="$define" rp="What is the type returned by time() on this system?" set time_t timetype long stdio.h sys/types.h eval $typedef_ask else echo 'time() not found, hope that will do.' >&4 val="$undef" timetype='int'; fi set d_time eval $setvar fi : see what type uids are declared as in the kernel echo " " echo "Looking for the type for user ids returned by getuid()." set uid_t uidtype xxx stdio.h sys/types.h eval $typedef case "$uidtype" in xxx) xxx=`./findhdr sys/user.h` set `grep '_ruid;' "$xxx" 2>/dev/null` unsigned short case $1 in unsigned) dflt="$1 $2" ;; *) dflt="$1" ;; esac ;; *) dflt="$uidtype";; esac case "$uidtype" in uid_t) echo "uid_t found." ;; *) rp="What is the type for user ids returned by getuid()?" . ./myread uidtype="$ans" ;; esac : see if dbm.h is available : see if dbmclose exists set dbmclose d_dbmclose eval $inlibc case "$d_dbmclose" in $define) set dbm.h i_dbm eval $inhdr case "$i_dbm" in $define) val="$undef" set i_rpcsvcdbm eval $setvar ;; *) set rpcsvc/dbm.h i_rpcsvcdbm eval $inhdr ;; esac ;; *) echo "We won't be including " val="$undef" set i_dbm eval $setvar val="$undef" set i_rpcsvcdbm eval $setvar ;; esac : see if this is a sys/file.h system val='' set sys/file.h val eval $inhdr : do we need to include sys/file.h ? case "$val" in "$define") echo " " if $h_sysfile; then val="$define" echo "We'll be including ." >&4 else val="$undef" echo "We won't be including ." >&4 fi ;; *) h_sysfile=false ;; esac set i_sysfile eval $setvar : see if fcntl.h is there val='' set fcntl.h val eval $inhdr : see if we can include fcntl.h case "$val" in "$define") echo " " if $h_fcntl; then val="$define" echo "We'll be including ." >&4 else val="$undef" if $h_sysfile; then echo "We don't need to include if we include ." >&4 else echo "We won't be including ." >&4 fi fi ;; *) h_fcntl=false val="$undef" ;; esac set i_fcntl eval $setvar : see if locale.h is available set locale.h i_locale eval $inhdr : see if this is a math.h system set math.h i_math eval $inhdr : see if ndbm.h is available set ndbm.h t_ndbm eval $inhdr case "$t_ndbm" in $define) : see if dbm_open exists set dbm_open d_dbm_open eval $inlibc case "$d_dbm_open" in $undef) t_ndbm="$undef" echo "We won't be including " ;; esac ;; esac val="$t_ndbm" set i_ndbm eval $setvar : see if net/errno.h is available val='' set net/errno.h val eval $inhdr : Unfortunately, it causes problems on some systems. Arrgh. case "$val" in $define) cat > try.c <<'EOM' #include #include #include int func() { return ENOTSOCK; } EOM if $cc $ccflags -c try.c >/dev/null 2>&1; then echo "We'll be including ." >&4 else echo "We won't be including ." >&4 val="$undef" fi $rm -f try.* try ;; esac set i_neterrno eval $setvar : get C preprocessor symbols handy echo " " $echo $n "Hmm... $c" echo $al | $tr ' ' $trnl >Cppsym.know $cat <Cppsym $startsh case "\$1" in -l) list=true shift ;; esac unknown='' case "\$list\$#" in 1|2) for sym do if $contains "^\$1$" Cppsym.true >/dev/null 2>&1; then exit 0 elif $contains "^\$1$" Cppsym.know >/dev/null 2>&1; then : else unknown="\$unknown \$sym" fi done set X \$unknown shift ;; esac case \$# in 0) exit 1;; esac echo \$* | $tr ' ' '$trnl' | $sed -e 's/\(.*\)/\\ #ifdef \1\\ exit 0; _ _ _ _\1\\ \1\\ #endif\\ /' >Cppsym\$\$ echo "exit 1; _ _ _" >>Cppsym\$\$ $cppstdin $cppminus Cppsym2\$\$ case "\$list" in true) $awk 'NF > 5 {print substr(\$6,2,100)}' Cppsym.true : now check the C compiler for additional symbols $cat >ccsym <tmp.c <&1\` do case "\$i" in -D*) echo "\$i" | $sed 's/^-D//';; -A*) $test "$gccversion" && echo "\$i" | $sed 's/^-A\(.*\)(\(.*\))/\1=\2/';; esac done $rm -f try.c EOS chmod +x ccsym $eunicefix ccsym ./ccsym > ccsym1.raw if $test -s ccsym1.raw; then $sort ccsym1.raw | $uniq >ccsym.raw else mv ccsym1.raw ccsym.raw fi $awk '/\=/ { print $0; next } { print $0"=1" }' ccsym.raw >ccsym.list $awk '{ print $0"=1" }' Cppsym.true >ccsym.true $comm -13 ccsym.true ccsym.list >ccsym.own $comm -12 ccsym.true ccsym.list >ccsym.com $comm -23 ccsym.true ccsym.list >ccsym.cpp also='' symbols='symbols' if $test -z ccsym.raw; then echo "Your C compiler doesn't seem to define any symbol!" >&4 echo " " echo "However, your C preprocessor defines the following ones:" $cat Cppsym.true else if $test -s ccsym.com; then echo "Your C compiler and pre-processor define these symbols:" $sed -e 's/\(.*\)=.*/\1/' ccsym.com also='also ' symbols='ones' $test "$silent" || sleep 1 fi if $test -s ccsym.cpp; then $test "$also" && echo " " echo "Your C pre-processor ${also}defines the following $symbols:" $sed -e 's/\(.*\)=.*/\1/' ccsym.cpp also='further ' $test "$silent" || sleep 1 fi if $test -s ccsym.own; then $test "$also" && echo " " echo "Your C compiler ${also}defines the following cpp variables:" $sed -e 's/\(.*\)=1/\1/' ccsym.own $sed -e 's/\(.*\)=.*/\1/' ccsym.own | $uniq >>Cppsym.true $test "$silent" || sleep 1 fi fi $rm -f ccsym* : see if this is a termio system val="$undef" val2="$undef" val3="$undef" if $test `./findhdr termios.h`; then set tcsetattr i_termios eval $inlibc val3="$i_termios" fi echo " " case "$val3" in "$define") echo "You have POSIX termios.h... good!" >&4;; *) if ./Cppsym pyr; then case "`/bin/universe`" in ucb) if $test `./findhdr sgtty.h`; then val2="$define" echo " found." >&4 else echo "System is pyramid with BSD universe." echo " not found--you could have problems." >&4 fi;; *) if $test `./findhdr termio.h`; then val="$define" echo " found." >&4 else echo "System is pyramid with USG universe." echo " not found--you could have problems." >&4 fi;; esac elif ./usg; then if $test `./findhdr termio.h`; then echo " found." >&4 val="$define" elif $test `./findhdr sgtty.h`; then echo " found." >&4 val2="$define" else echo "Neither nor found--you could have problems." >&4 fi else if $test `./findhdr sgtty.h`; then echo " found." >&4 val2="$define" elif $test `./findhdr termio.h`; then echo " found." >&4 val="$define" else echo "Neither nor found--you could have problems." >&4 fi fi;; esac set i_termio; eval $setvar val=$val2; set i_sgtty; eval $setvar val=$val3; set i_termios; eval $setvar : see if stdarg is available echo " " if $test `./findhdr stdarg.h`; then echo " found." >&4 valstd="$define" else echo " NOT found." >&4 valstd="$undef" fi : see if varags is available echo " " if $test `./findhdr varargs.h`; then echo " found." >&4 else echo " NOT found, but that's ok (I hope)." >&4 fi : set up the varargs testing programs $cat > varargs.c < #endif #ifdef I_VARARGS #include #endif #ifdef I_STDARG int f(char *p, ...) #else int f(va_alist) va_dcl #endif { va_list ap; #ifndef I_STDARG char *p; #endif #ifdef I_STDARG va_start(ap,p); #else va_start(ap); p = va_arg(ap, char *); #endif va_end(ap); } EOP $cat > varargs </dev/null 2>&1; then echo "true" else echo "false" fi $rm -f varargs$_o EOP chmod +x varargs : now check which varargs header should be included echo " " i_varhdr='' case "$valstd" in "$define") if `./varargs I_STDARG`; then val='stdarg.h' elif `./varargs I_VARARGS`; then val='varargs.h' fi ;; *) if `./varargs I_VARARGS`; then val='varargs.h' fi ;; esac case "$val" in '') echo "I could not find the definition for va_dcl... You have problems..." >&4 val="$undef"; set i_stdarg; eval $setvar val="$undef"; set i_varargs; eval $setvar ;; *) set i_varhdr eval $setvar case "$i_varhdr" in stdarg.h) val="$define"; set i_stdarg; eval $setvar val="$undef"; set i_varargs; eval $setvar ;; varargs.h) val="$undef"; set i_stdarg; eval $setvar val="$define"; set i_varargs; eval $setvar ;; esac echo "We'll include <$i_varhdr> to get va_dcl definition." >&4;; esac $rm -f varargs* : see if stddef is available set stddef.h i_stddef eval $inhdr : see if sys/access.h is available set sys/access.h i_sysaccess eval $inhdr : see if ioctl defs are in sgtty, termio, sys/filio or sys/ioctl set sys/filio.h i_sysfilio eval $inhdr echo " " if $test `./findhdr sys/ioctl.h`; then val="$define" echo ' found.' >&4 else val="$undef" if $test $i_sysfilio = "$define"; then echo ' NOT found.' >&4 else $test $i_sgtty = "$define" && xxx="sgtty.h" $test $i_termio = "$define" && xxx="termio.h" $test $i_termios = "$define" && xxx="termios.h" echo "No found, assuming ioctl args are defined in <$xxx>." >&4 fi fi set i_sysioctl eval $setvar : see if this is a sys/param system set sys/param.h i_sysparam eval $inhdr : see if sys/resource.h has to be included set sys/resource.h i_sysresrc eval $inhdr : see if sys/security.h is available set sys/security.h i_syssecrt eval $inhdr : see if this is a sys/un.h system set sys/un.h i_sysun eval $inhdr : see if this is a syswait system set sys/wait.h i_syswait eval $inhdr : see if this is an utime system set utime.h i_utime eval $inhdr : see if this is a values.h system set values.h i_values eval $inhdr : see if this is a vfork system case "$d_vfork" in "$define") set vfork.h i_vfork eval $inhdr ;; *) i_vfork="$undef" ;; esac : see if gdbm.h is available set gdbm.h t_gdbm eval $inhdr case "$t_gdbm" in $define) : see if gdbm_open exists set gdbm_open d_gdbm_open eval $inlibc case "$d_gdbm_open" in $undef) t_gdbm="$undef" echo "We won't be including " ;; esac ;; esac val="$t_gdbm" set i_gdbm eval $setvar echo " " echo "Looking for extensions..." >&4 tdir=`pwd` cd $rsrc/ext : If we are using the old config.sh, known_extensions may contain : old or inaccurate or duplicate values. known_extensions='' nonxs_extensions='' : We do not use find because it might not be available. : We do not just use MANIFEST because the user may have dropped : some additional extensions into the source tree and expect them : to be built. for xxx in * ; do case "$xxx" in DynaLoader|dynaload) ;; *) if $test -f $xxx/$xxx.xs; then known_extensions="$known_extensions $xxx" elif $test -f $xxx/Makefile.PL; then nonxs_extensions="$nonxs_extensions $xxx" else if $test -d $xxx; then # Look for nested extensions, eg. Devel/Dprof. cd $xxx for yyy in * ; do if $test -f $yyy/$yyy.xs; then known_extensions="$known_extensions $xxx/$yyy" elif $test -f $yyy/Makefile.PL; then nonxs_extensions="$nonxs_extensions $xxx/$yyy" fi done cd .. fi fi ;; esac done set X $nonxs_extensions shift nonxs_extensions="$*" set X $known_extensions shift known_extensions="$*" cd $tdir : Now see which are supported on this system. avail_ext='' for xxx in $known_extensions ; do case "$xxx" in DB_File|db_file) case "$i_db" in $define) avail_ext="$avail_ext $xxx" ;; esac ;; GDBM_File|gdbm_fil) case "$i_gdbm" in $define) avail_ext="$avail_ext $xxx" ;; esac ;; NDBM_File|ndbm_fil) case "$i_ndbm" in $define) avail_ext="$avail_ext $xxx" ;; esac ;; ODBM_File|odbm_fil) case "${i_dbm}${i_rpcsvcdbm}" in *"${define}"*) avail_ext="$avail_ext $xxx" ;; esac ;; POSIX|posix) case "$useposix" in true|define|y) avail_ext="$avail_ext $xxx" ;; esac ;; Opcode|opcode) case "$useopcode" in true|define|y) avail_ext="$avail_ext $xxx" ;; esac ;; Socket|socket) case "$d_socket" in true|$define|y) avail_ext="$avail_ext $xxx" ;; esac ;; Thread|thread) case "$usethreads" in true|$define|y) avail_ext="$avail_ext $xxx" ;; esac ;; IPC/SysV|ipc/sysv) : XXX Do we need a useipcsysv variable here case "${d_msg}${d_sem}${d_shm}" in *"${define}"*) avail_ext="$avail_ext $xxx" ;; esac ;; *) avail_ext="$avail_ext $xxx" ;; esac done set X $avail_ext shift avail_ext="$*" : Now see which nonxs extensions are supported on this system. : For now assume all are. nonxs_ext='' for xxx in $nonxs_extensions ; do case "$xxx" in *) nonxs_ext="$nonxs_ext $xxx" ;; esac done set X $nonxs_ext shift nonxs_ext="$*" case $usedl in $define) $cat <&4 for file in $loclist $trylist; do if test X$file != Xln -a X$file != Xar -o X$osname != Xos2; then eval $file="\$file" fi done ;; esac : create config.sh file echo " " echo "Creating config.sh..." >&4 $spitshell <config.sh $startsh # # This file was produced by running the Configure script. It holds all the # definitions figured out by Configure. Should you modify one of these values, # do not forget to propagate your changes by running "Configure -der". You may # instead choose to run each of the .SH files by yourself, or "Configure -S". # # Package name : $package # Source directory : $src # Configuration time: $cf_time # Configured by : $cf_by # Target system : $myuname Author='$Author' Date='$Date' Header='$Header' Id='$Id' Locker='$Locker' Log='$Log' Mcc='$Mcc' RCSfile='$RCSfile' Revision='$Revision' Source='$Source' State='$State' _a='$_a' _exe='$_exe' _o='$_o' afs='$afs' alignbytes='$alignbytes' ansi2knr='$ansi2knr' aphostname='$aphostname' apiversion='$apiversion' ar='$ar' archlib='$archlib' archlibexp='$archlibexp' archname64='$archname64' archname='$archname' archobjs='$archobjs' awk='$awk' baserev='$baserev' bash='$bash' bin='$bin' binexp='$binexp' bison='$bison' byacc='$byacc' byteorder='$byteorder' c='$c' castflags='$castflags' cat='$cat' cc='$cc' cccdlflags='$cccdlflags' ccdlflags='$ccdlflags' ccflags='$ccflags' cf_by='$cf_by' cf_email='$cf_email' cf_time='$cf_time' chgrp='$chgrp' chmod='$chmod' chown='$chown' clocktype='$clocktype' comm='$comm' compress='$compress' contains='$contains' cp='$cp' cpio='$cpio' cpp='$cpp' cpp_stuff='$cpp_stuff' cppflags='$cppflags' cpplast='$cpplast' cppminus='$cppminus' cpprun='$cpprun' cppstdin='$cppstdin' cryptlib='$cryptlib' csh='$csh' d_Gconvert='$d_Gconvert' d_access='$d_access' d_accessx='$d_accessx' d_alarm='$d_alarm' d_archlib='$d_archlib' d_attribut='$d_attribut' d_bcmp='$d_bcmp' d_bcopy='$d_bcopy' d_bsd='$d_bsd' d_bsdgetpgrp='$d_bsdgetpgrp' d_bsdsetpgrp='$d_bsdsetpgrp' d_bzero='$d_bzero' d_casti32='$d_casti32' d_castneg='$d_castneg' d_charvspr='$d_charvspr' d_chown='$d_chown' d_chroot='$d_chroot' d_chsize='$d_chsize' d_closedir='$d_closedir' d_const='$d_const' d_crypt='$d_crypt' d_csh='$d_csh' d_cuserid='$d_cuserid' d_dbl_dig='$d_dbl_dig' d_dbmclose64='$d_dbmclose64' d_dbminit64='$d_dbminit64' d_delete64='$d_delete64' d_difftime='$d_difftime' d_dirent64s='$d_dirent64s' d_dirnamlen='$d_dirnamlen' d_dlerror='$d_dlerror' d_dlopen='$d_dlopen' d_dlsymun='$d_dlsymun' d_dosuid='$d_dosuid' d_drand48proto='$d_drand48proto' d_dup2='$d_dup2' d_eaccess='$d_eaccess' d_endgrent='$d_endgrent' d_endhent='$d_endhent' d_endnent='$d_endnent' d_endpent='$d_endpent' d_endpwent='$d_endpwent' d_endsent='$d_endsent' d_eofnblk='$d_eofnblk' d_eunice='$d_eunice' d_fchmod='$d_fchmod' d_fchown='$d_fchown' d_fcntl='$d_fcntl' d_fd_macros='$d_fd_macros' d_fd_set='$d_fd_set' d_fds_bits='$d_fds_bits' d_fetch64='$d_fetch64' d_fgetpos64='$d_fgetpos64' d_fgetpos='$d_fgetpos' d_firstkey64='$d_firstkey64' d_flexfnam='$d_flexfnam' d_flock64s='$d_flock64s' d_flock='$d_flock' d_fopen64='$d_fopen64' d_fork='$d_fork' d_fpathconf='$d_fpathconf' d_freopen64='$d_freopen64' d_fseek64='$d_fseek64' d_fseeko64='$d_fseeko64' d_fseeko='$d_fseeko' d_fsetpos64='$d_fsetpos64' d_fsetpos='$d_fsetpos' d_fstat64='$d_fstat64' d_ftell64='$d_ftell64' d_ftello64='$d_ftello64' d_ftello='$d_ftello' d_ftime='$d_ftime' d_ftruncate64='$d_ftruncate64' d_getgrent='$d_getgrent' d_getgrps='$d_getgrps' d_gethbyaddr='$d_gethbyaddr' d_gethbyname='$d_gethbyname' d_gethent='$d_gethent' d_gethname='$d_gethname' d_gethostprotos='$d_gethostprotos' d_getlogin='$d_getlogin' d_getnbyaddr='$d_getnbyaddr' d_getnbyname='$d_getnbyname' d_getnent='$d_getnent' d_getnetprotos='$d_getnetprotos' d_getpbyname='$d_getpbyname' d_getpbynumber='$d_getpbynumber' d_getpent='$d_getpent' d_getpgid='$d_getpgid' d_getpgrp2='$d_getpgrp2' d_getpgrp='$d_getpgrp' d_getppid='$d_getppid' d_getprior='$d_getprior' d_getprotoprotos='$d_getprotoprotos' d_getpwent='$d_getpwent' d_getsbyname='$d_getsbyname' d_getsbyport='$d_getsbyport' d_getsent='$d_getsent' d_getservprotos='$d_getservprotos' d_gettimeod='$d_gettimeod' d_gnulibc='$d_gnulibc' d_grpasswd='$d_grpasswd' d_htonl='$d_htonl' d_index='$d_index' d_inetaton='$d_inetaton' d_ino64t='$d_ino64t' d_int64t='$d_int64t' d_isascii='$d_isascii' d_killpg='$d_killpg' d_lchown='$d_lchown' d_link='$d_link' d_locconv='$d_locconv' d_lockf64='$d_lockf64' d_lockf='$d_lockf' d_longdbl='$d_longdbl' d_longlong='$d_longlong' d_lseek64='$d_lseek64' d_lstat64='$d_lstat64' d_lstat='$d_lstat' d_mblen='$d_mblen' d_mbstowcs='$d_mbstowcs' d_mbtowc='$d_mbtowc' d_memcmp='$d_memcmp' d_memcpy='$d_memcpy' d_memmove='$d_memmove' d_memset='$d_memset' d_mkdir='$d_mkdir' d_mkfifo='$d_mkfifo' d_mktime='$d_mktime' d_msg='$d_msg' d_msgctl='$d_msgctl' d_msgget='$d_msgget' d_msgrcv='$d_msgrcv' d_msgsnd='$d_msgsnd' d_mymalloc='$d_mymalloc' d_nextkey64='$d_nextkey64' d_nice='$d_nice' d_off64t='$d_off64t' d_oldpthreads='$d_oldpthreads' d_oldsock='$d_oldsock' d_open3='$d_open3' d_open64='$d_open64' d_opendir64='$d_opendir64' d_pathconf='$d_pathconf' d_pause='$d_pause' d_phostname='$d_phostname' d_pipe='$d_pipe' d_poll='$d_poll' d_portable='$d_portable' d_pthread_yield='$d_pthread_yield' d_pthreads_created_joinable='$d_pthreads_created_joinable' d_pwage='$d_pwage' d_pwchange='$d_pwchange' d_pwclass='$d_pwclass' d_pwcomment='$d_pwcomment' d_pwexpire='$d_pwexpire' d_pwgecos='$d_pwgecos' d_pwpasswd='$d_pwpasswd' d_pwquota='$d_pwquota' d_readdir64='$d_readdir64' d_readdir='$d_readdir' d_readlink='$d_readlink' d_rename='$d_rename' d_rewinddir='$d_rewinddir' d_rmdir='$d_rmdir' d_safebcpy='$d_safebcpy' d_safemcpy='$d_safemcpy' d_sanemcmp='$d_sanemcmp' d_sched_yield='$d_sched_yield' d_seekdir64='$d_seekdir64' d_seekdir='$d_seekdir' d_select='$d_select' d_sem='$d_sem' d_semctl='$d_semctl' d_semctl_semid_ds='$d_semctl_semid_ds' d_semctl_semun='$d_semctl_semun' d_semget='$d_semget' d_semop='$d_semop' d_setegid='$d_setegid' d_seteuid='$d_seteuid' d_setgrent='$d_setgrent' d_setgrps='$d_setgrps' d_sethent='$d_sethent' d_setlinebuf='$d_setlinebuf' d_setlocale='$d_setlocale' d_setnent='$d_setnent' d_setpent='$d_setpent' d_setpgid='$d_setpgid' d_setpgrp2='$d_setpgrp2' d_setpgrp='$d_setpgrp' d_setprior='$d_setprior' d_setpwent='$d_setpwent' d_setregid='$d_setregid' d_setresgid='$d_setresgid' d_setresuid='$d_setresuid' d_setreuid='$d_setreuid' d_setrgid='$d_setrgid' d_setruid='$d_setruid' d_setsent='$d_setsent' d_setsid='$d_setsid' d_setvbuf='$d_setvbuf' d_sfio='$d_sfio' d_shm='$d_shm' d_shmat='$d_shmat' d_shmatprototype='$d_shmatprototype' d_shmctl='$d_shmctl' d_shmdt='$d_shmdt' d_shmget='$d_shmget' d_sigaction='$d_sigaction' d_sigsetjmp='$d_sigsetjmp' d_socket='$d_socket' d_sockpair='$d_sockpair' d_stat64='$d_stat64' d_statblks='$d_statblks' d_stdio_cnt_lval='$d_stdio_cnt_lval' d_stdio_ptr_lval='$d_stdio_ptr_lval' d_stdiobase='$d_stdiobase' d_stdstdio='$d_stdstdio' d_store64='$d_store64' d_strchr='$d_strchr' d_strcoll='$d_strcoll' d_strctcpy='$d_strctcpy' d_strerrm='$d_strerrm' d_strerror='$d_strerror' d_strtod='$d_strtod' d_strtol='$d_strtol' d_strtoul='$d_strtoul' d_strxfrm='$d_strxfrm' d_suidsafe='$d_suidsafe' d_symlink='$d_symlink' d_syscall='$d_syscall' d_sysconf='$d_sysconf' d_sysernlst='$d_sysernlst' d_syserrlst='$d_syserrlst' d_system='$d_system' d_tcgetpgrp='$d_tcgetpgrp' d_tcsetpgrp='$d_tcsetpgrp' d_telldir64='$d_telldir64' d_telldir='$d_telldir' d_time='$d_time' d_times='$d_times' d_tmpfile64='$d_tmpfile64' d_truncate64='$d_truncate64' d_truncate='$d_truncate' d_tzname='$d_tzname' d_umask='$d_umask' d_uname='$d_uname' d_union_semun='$d_union_semun' d_vfork='$d_vfork' d_void_closedir='$d_void_closedir' d_voidsig='$d_voidsig' d_voidtty='$d_voidtty' d_volatile='$d_volatile' d_vprintf='$d_vprintf' d_wait4='$d_wait4' d_waitpid='$d_waitpid' d_wcstombs='$d_wcstombs' d_wctomb='$d_wctomb' d_xenix='$d_xenix' date='$date' db_hashtype='$db_hashtype' db_prefixtype='$db_prefixtype' defvoidused='$defvoidused' direntrytype='$direntrytype' dlext='$dlext' dlsrc='$dlsrc' doublesize='$doublesize' drand01='$drand01' dynamic_ext='$dynamic_ext' eagain='$eagain' ebcdic='$ebcdic' echo='$echo' egrep='$egrep' emacs='$emacs' eunicefix='$eunicefix' exe_ext='$exe_ext' expr='$expr' extensions='$extensions' find='$find' firstmakefile='$firstmakefile' flex='$flex' fpostype='$fpostype' freetype='$freetype' full_csh='$full_csh' full_sed='$full_sed' gccversion='$gccversion' gidtype='$gidtype' glibpth='$glibpth' grep='$grep' groupcat='$groupcat' groupstype='$groupstype' gzip='$gzip' h_fcntl='$h_fcntl' h_sysfile='$h_sysfile' hint='$hint' hostcat='$hostcat' huge='$huge' i_arpainet='$i_arpainet' i_bsdioctl='$i_bsdioctl' i_db='$i_db' i_dbm='$i_dbm' i_dirent='$i_dirent' i_dld='$i_dld' i_dlfcn='$i_dlfcn' i_fcntl='$i_fcntl' i_float='$i_float' i_gdbm='$i_gdbm' i_grp='$i_grp' i_inttypes='$i_inttypes' i_limits='$i_limits' i_locale='$i_locale' i_malloc='$i_malloc' i_math='$i_math' i_memory='$i_memory' i_ndbm='$i_ndbm' i_netdb='$i_netdb' i_neterrno='$i_neterrno' i_niin='$i_niin' i_pwd='$i_pwd' i_rpcsvcdbm='$i_rpcsvcdbm' i_sfio='$i_sfio' i_sgtty='$i_sgtty' i_stdarg='$i_stdarg' i_stddef='$i_stddef' i_stdlib='$i_stdlib' i_string='$i_string' i_sysaccess='$i_sysaccess' i_sysdir='$i_sysdir' i_sysfile='$i_sysfile' i_sysfilio='$i_sysfilio' i_sysin='$i_sysin' i_sysioctl='$i_sysioctl' i_sysndir='$i_sysndir' i_sysparam='$i_sysparam' i_sysresrc='$i_sysresrc' i_syssecrt='$i_syssecrt' i_sysselct='$i_sysselct' i_syssockio='$i_syssockio' i_sysstat='$i_sysstat' i_systime='$i_systime' i_systimek='$i_systimek' i_systimes='$i_systimes' i_systypes='$i_systypes' i_sysun='$i_sysun' i_syswait='$i_syswait' i_termio='$i_termio' i_termios='$i_termios' i_time='$i_time' i_unistd='$i_unistd' i_utime='$i_utime' i_values='$i_values' i_varargs='$i_varargs' i_varhdr='$i_varhdr' i_vfork='$i_vfork' ignore_versioned_solibs='$ignore_versioned_solibs' incpath='$incpath' inews='$inews' installarchlib='$installarchlib' installbin='$installbin' installman1dir='$installman1dir' installman3dir='$installman3dir' installprivlib='$installprivlib' installscript='$installscript' installsitearch='$installsitearch' installsitelib='$installsitelib' intsize='$intsize' known_extensions='$known_extensions' ksh='$ksh' large='$large' ld='$ld' lddlflags='$lddlflags' ldflags='$ldflags' less='$less' lib_ext='$lib_ext' libc='$libc' libperl='$libperl' libpth='$libpth' libs='$libs' libswanted='$libswanted' line='$line' lint='$lint' lkflags='$lkflags' ln='$ln' lns='$lns' locincpth='$locincpth' loclibpth='$loclibpth' longdblsize='$longdblsize' longlongsize='$longlongsize' longsize='$longsize' lp='$lp' lpr='$lpr' ls='$ls' lseeksize='$lseeksize' lseektype='$lseektype' mail='$mail' mailx='$mailx' make='$make' make_set_make='$make_set_make' mallocobj='$mallocobj' mallocsrc='$mallocsrc' malloctype='$malloctype' man1dir='$man1dir' man1direxp='$man1direxp' man1ext='$man1ext' man3dir='$man3dir' man3direxp='$man3direxp' man3ext='$man3ext' medium='$medium' mips='$mips' mips_type='$mips_type' mkdir='$mkdir' models='$models' modetype='$modetype' more='$more' mv='$mv' myarchname='$myarchname' mydomain='$mydomain' myhostname='$myhostname' myuname='$myuname' n='$n' netdb_hlen_type='$netdb_hlen_type' netdb_host_type='$netdb_host_type' netdb_name_type='$netdb_name_type' netdb_net_type='$netdb_net_type' nm='$nm' nm_opt='$nm_opt' nm_so_opt='$nm_so_opt' nonxs_ext='$nonxs_ext' nroff='$nroff' o_nonblock='$o_nonblock' obj_ext='$obj_ext' optimize='$optimize' orderlib='$orderlib' osname='$osname' osvers='$osvers' package='$package' pager='$pager' passcat='$passcat' patchlevel='$patchlevel' path_sep='$path_sep' perl='$perl' perladmin='$perladmin' perlpath='$perlpath' pg='$pg' phostname='$phostname' pidtype='$pidtype' plibpth='$plibpth' pmake='$pmake' pr='$pr' prefix='$prefix' prefixexp='$prefixexp' privlib='$privlib' privlibexp='$privlibexp' prototype='$prototype' pthread_setdetachstate_pointer='$pthread_setdetachstate_pointer' ptrsize='$ptrsize' randbits='$randbits' randfunc='$randfunc' randseedtype='$randseedtype' ranlib='$ranlib' rd_nodata='$rd_nodata' rm='$rm' rmail='$rmail' runnm='$runnm' sched_yield='$sched_yield' scriptdir='$scriptdir' scriptdirexp='$scriptdirexp' sed='$sed' seedfunc='$seedfunc' selectminbits='$selectminbits' selecttype='$selecttype' sendmail='$sendmail' sh='$sh' shar='$shar' sharpbang='$sharpbang' shmattype='$shmattype' shortsize='$shortsize' shrpenv='$shrpenv' shsharp='$shsharp' sig_name='$sig_name' sig_name_init='$sig_name_init' sig_num='$sig_num' signal_t='$signal_t' sitearch='$sitearch' sitearchexp='$sitearchexp' sitelib='$sitelib' sitelibexp='$sitelibexp' sizetype='$sizetype' sleep='$sleep' smail='$smail' small='$small' so='$so' sockethdr='$sockethdr' socketlib='$socketlib' sort='$sort' spackage='$spackage' spitshell='$spitshell' split='$split' src='$src' ssizetype='$ssizetype' startperl='$startperl' startsh='$startsh' static_ext='$static_ext' stdchar='$stdchar' stdio_base='$stdio_base' stdio_bufsiz='$stdio_bufsiz' stdio_cnt='$stdio_cnt' stdio_filbuf='$stdio_filbuf' stdio_ptr='$stdio_ptr' strings='$strings' submit='$submit' subversion='$subversion' sysman='$sysman' tail='$tail' tar='$tar' tbl='$tbl' tee='$tee' test='$test' timeincl='$timeincl' timetype='$timetype' touch='$touch' tr='$tr' trnl='$trnl' troff='$troff' uidtype='$uidtype' uname='$uname' uniq='$uniq' use64bits='$use64bits' usedl='$usedl' usemultiplicity='$usemultiplicity' usemymalloc='$usemymalloc' usenm='$usenm' useopcode='$useopcode' useperlio='$useperlio' useposix='$useposix' usesfio='$usesfio' useshrplib='$useshrplib' usethreads='$usethreads' usevfork='$usevfork' usrinc='$usrinc' uuname='$uuname' version='$version' vi='$vi' voidflags='$voidflags' xlibpth='$xlibpth' zcat='$zcat' zip='$zip' EOT : Add in command line options if available $test -f UU/cmdline.opt && $cat UU/cmdline.opt >> config.sh : add special variables $test -f $src/patchlevel.h && \ awk '/^#define/ {printf "%s=%s\n",$2,$3}' $src/patchlevel.h >>config.sh echo "CONFIG=true" >>config.sh : propagate old symbols if $test -f UU/config.sh; then UU/oldconfig.sh sed -n 's/^\([a-zA-Z_0-9]*\)=.*/\1/p' config.sh config.sh UU/oldconfig.sh |\ sort | uniq -u >UU/oldsyms set X `cat UU/oldsyms` shift case $# in 0) ;; *) cat <>config.sh for sym in `cat UU/oldsyms`; do echo " Propagating $hint variable "'$'"$sym..." eval 'tmp="$'"${sym}"'"' echo "$tmp" | \ sed -e "s/'/'\"'\"'/g" -e "s/^/$sym='/" -e "s/$/'/" >>config.sh done ;; esac fi : Finish up by extracting the .SH files case "$alldone" in exit) $rm -rf UU echo "Done." exit 0 ;; cont) ;; '') dflt='' nostick=true $cat <&4 -c "$ans";; esac ;; esac : if this fails, just run all the .SH files by hand . ./config.sh echo " " exec 1>&4 . ./UU/extract if $contains '^depend:' [Mm]akefile >/dev/null 2>&1; then dflt=y case "$silent" in true) ;; *) $cat < makedepend.out &" It can take a while, so you might not want to run it right now. EOM ;; esac rp="Run $make depend now?" . UU/myread case "$ans" in y*) $make depend && echo "Now you must run a $make." ;; *) echo "You must run '$make depend' then '$make'." ;; esac elif test -f [Mm]akefile; then echo " " echo "Now you must run a $make." else echo "Done." fi if $test -f Policy.sh; then $cat <&4 $rm -f config.msg fi $rm -f kit*isdone ark*isdone $rm -rf UU : End of Configure