d_fd_macros=''
d_fd_set=''
d_fds_bits=''
+d_fdclose=''
d_fdim=''
d_fegetround=''
d_fgetpos=''
d_shmdt=''
d_shmget=''
d_sigaction=''
+d_siginfo_si_errno=''
+d_siginfo_si_pid=''
+d_siginfo_si_uid=''
+d_siginfo_si_addr=''
+d_siginfo_si_status=''
+d_siginfo_si_band=''
+d_siginfo_si_value=''
d_signbit=''
d_sigprocmask=''
d_sigsetjmp=''
: set usesocks on the Configure command line to enable socks.
: List of libraries we want.
: If anyone needs extra -lxxx, put those in a hint file.
-libswanted="cl pthread socket bind inet nsl nm ndbm gdbm dbm db malloc dl ld"
+libswanted="cl pthread socket bind inet nsl ndbm gdbm dbm db malloc dl ld"
libswanted="$libswanted sun m crypt sec util c cposix posix ucb bsd BSD"
: We probably want to search /usr/shlib before most other libraries.
: This is only used by the lib/ExtUtils/MakeMaker.pm routine extliblist.
: run the defines and the undefines, if any, but leave the file out there...
touch optdef.sh
-grep -q '\\' optdef.sh
+grep '\\' optdef.sh >/dev/null 2>&1
if test $? = 0; then
echo "Configure does not support \\ in -D arguments"
exit 1
echo "Fetching answers from $config_sh..."
cd ..
. $config_sh
- . ./optdef.sh
+ . UU/optdef.sh
echo " "
. UU/extract
rm -rf UU
}
#endif
/* For alignment 32-bit platforms have the 80 bits in 12 bytes,
- * while 64-bits platforms have it in 16 bytes. */
+ * while 64-bits platforms have it in 16 bytes. The trailing bytes
+ * cannot be trusted. */
#if LDBL_MANT_DIG == 64 && (LONGDBLSIZE == 16 || LONGDBLSIZE == 12)
- if (b[0] == 0xCD && b[9] == 0xBF && b[10] == 0x00) {
+ if (b[0] == 0xCD && b[9] == 0xBF) {
/* x86 80-bit little-endian, sizeof 12 (ILP32, Solaris x86)
* or 16 (LP64, Linux and OS X), 4 or 6 bytes of padding.
* Also known as "extended precision". */
printf("3\n");
exit(0);
}
- if (b[0] == 0xBF && b[9] == 0xCD && b[10] == 0x00) {
- /* is there ever big-endian 80-bit, really? */
+ if (b[0] == 0xBF && b[9] == 0xCD) {
+ /* Is there ever big-endian 80-bit, really?
+ *
+ * The Motorola 68881 had another "extended precision" format:
+ * sign:1 exp:15 zero:16 integer:1 mantissa:63
+ * for total of 96 bits of bytes. The zero bits were unused.
+ * See "M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL" for more details.
+ * If it ever becomes relevant, this format should be allocated
+ * a new doublekind code since it's quite different from the Intel x87.
+ */
printf("4\n");
exit(0);
}
/* software "double double", the 106 is 53+53.
* but irix thinks it is 107. */
if (b[0] == 0x9A && b[7] == 0x3C && b[8] == 0x9A && b[15] == 0xBF) {
- /* double double 128-bit little-endian,
+ /* double double 128-bit fully little-endian,
+ * little-endian doubles in little-endian order,
* 9a 99 99 99 99 99 59 3c 9a 99 99 99 99 99 b9 bf */
printf("5\n");
exit(0);
}
if (b[0] == 0xBF && b[7] == 0x9A && b[8] == 0x3C && b[15] == 0x9A) {
- /* double double 128-bit big-endian, e.g. PPC/Power and MIPS:
+ /* double double 128-bit fully big-endian,
+ * big-endian doubles in big-endian order,
+ * e.g. PPC/Power and MIPS:
* bf b9 99 99 99 99 99 9a 3c 59 99 99 99 99 99 9a */
printf("6\n");
exit(0);
}
+ if (b[0] == 0x9A && b[7] == 0xBF && b[8] == 0x9A && b[15] == 0x3C) {
+ /* double double 128-bit mixed endian.
+ * little-endian doubles in big-endian order,
+ * e.g. ppc64el,
+ * 9a 99 99 99 99 99 b9 bf 9a 99 99 99 99 99 59 3c */
+ printf("7\n");
+ exit(0);
+ }
+ if (b[0] == 0x3C && b[7] == 0x9A && b[8] == 0xBF && b[15] == 0x9A) {
+ /* double double 128-bit mixed endian,
+ * big-endian doubles in little-endian order,
+ * 3c 59 99 99 99 99 99 9a bf b9 99 99 99 99 99 9a */
+ printf("8\n");
+ exit(0);
+ }
#endif
printf("-1\n"); /* unknown */
exit(0);
2) echo "You have IEEE 754 128-bit big endian long doubles." >&4 ;;
3) echo "You have x86 80-bit little endian long doubles." >& 4 ;;
4) echo "You have x86 80-bit big endian long doubles." >& 4 ;;
-5) echo "You have 128-bit little-endian double-double long doubles." >& 4 ;;
-6) echo "You have 128-bit big-endian double-double long doubles." >& 4 ;;
+5) echo "You have 128-bit fully little-endian double-double long doubles (64-bit LEs in LE)." >& 4 ;;
+6) echo "You have 128-bit fully big-endian double-double long doubles (64-bit BEs in BE)." >& 4 ;;
+7) echo "You have 128-bit mixed double-double long doubles (64-bit LEs in BE)." >& 4 ;;
+8) echo "You have 128-bit mixed double-double long doubles (64-bit BEs in LE)." >& 4 ;;
*) echo "Cannot figure out your long double." >&4 ;;
esac
$rm_try
eval $setvar;
$rm_try'
+: Define hasfield_t macro for Configure internal use
+hasfield_t='varname=$1; struct=$2; type=$3; field=$4; shift; 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 foo; $type bar = foo.$field; }" >> try.c;
+set try;
+if eval $compile; then
+ val="$define";
+else
+ val="$undef";
+fi;
+set $varname;
+eval $setvar;
+$rm_try'
+
: see if we should include time.h, sys/time.h, or both
echo " "
if test "X$timeincl" = X; then
fi
$rm_try
+: see if fdclose exists
+set fdclose d_fdclose
+eval $inlibc
+
: see if fdim exists
set fdim d_fdim
eval $inlibc
;;
esac
;;
- 5) # 128-bit LE "double double"
+ 5) # 128-bit LE-LE "double double"
longdblinfbytes='0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x7f'
longdblnanbytes='0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f'
;;
- 6) # 128-bit BE "double double"
+ 6) # 128-bit BE-BE "double double"
longdblinfbytes='0x7f, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00'
longdblnanbytes='0x7f, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00'
;;
+ 7) # 128-bit LE-BE "double double"
+ longdblinfbytes='0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00'
+ longdblnanbytes='0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00'
+ ;;
+ 8) # 128-bit BE-LE "double double"
+ longdblinfbytes='0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00'
+ longdblnanbytes='0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00'
+ ;;
*) # No idea.
longdblinfbytes=$undef
longdblnanbytes=$undef
* and the top bit must have been one since 387, zero is plain invalid.
* For normal fp values, the LDBL_MANT_DIG is fine, though. */
# define BITS LDBL_MANT_DIG
-# elif ($longdblkind == 5 || $longdblkind == 6) /* double double */
+# elif ($longdblkind == 5 || $longdblkind == 6 || $longdblkind == 7 || $longdblkind == 8) /* double double */
/* LDBL_MANT_DIG of 106 (twice 53) would be logical, but for some
* reason e.g. Irix thinks 107. But in any case, we want only
* the number of real bits, the implicit bits are of no interest. */
;;
esac
+: see what siginfo fields we have
+case "$d_sigaction" in
+"$define")
+ echo "Checking if your siginfo_t has si_errno field...">&4
+ set d_siginfo_si_errno siginfo_t int si_errno $d_sigaction signal.h
+ eval $hasfield_t;
+
+ echo "Checking if your siginfo_t has si_pid field...">&4
+ set d_siginfo_si_pid siginfo_t $pidtype si_pid $d_sigaction signal.h
+ eval $hasfield_t;
+
+ echo "Checking if your siginfo_t has si_uid field...">&4
+ set d_siginfo_si_uid siginfo_t $uidtype si_uid $d_sigaction signal.h
+ eval $hasfield_t;
+
+ echo "Checking if your siginfo_t has si_addr field...">&4
+ set d_siginfo_si_addr siginfo_t "void *" si_addr $d_sigaction signal.h
+ eval $hasfield_t;
+
+ echo "Checking if your siginfo_t has si_status field...">&4
+ set d_siginfo_si_status siginfo_t int si_status $d_sigaction signal.h
+ eval $hasfield_t;
+
+ echo "Checking if your siginfo_t has si_band field...">&4
+ set d_siginfo_si_band siginfo_t long si_band $d_sigaction signal.h
+ eval $hasfield_t;
+
+ echo "Checking if your siginfo_t has si_value field...">&4
+ set d_siginfo_si_value siginfo_t "union sigval" si_value $d_sigaction signal.h
+ eval $hasfield_t;
+
+ ;;
+esac
+
: Determine if we can use sysctl with KERN_PROC_PATHNAME to find executing program
echo " "
echo "Determining whether we can use sysctl with KERN_PROC_PATHNAME to find executing program..." >&4
: add -D_FORTIFY_SOURCE if feasible and not already there
case "$gccversion" in
-4.*) case "$optimize$ccflags" in
+[45].*) case "$optimize$ccflags" in
*-O*) case "$ccflags$cppsymbols" in
*_FORTIFY_SOURCE=*) # Don't add it again.
echo "You seem to have -D_FORTIFY_SOURCE already, not adding it." >&4
;;
esac
;;
- *) echo "You have gcc 4.* but not optimizing, not adding -D_FORTIFY_SOURCE." >&4
+ *) echo "You have gcc 4.* or later but not optimizing, not adding -D_FORTIFY_SOURCE." >&4
;;
esac
;;
-*) echo "You seem not to have gcc 4.*, not adding -D_FORTIFY_SOURCE." >&4
+*) echo "You seem not to have gcc 4.* or later, not adding -D_FORTIFY_SOURCE." >&4
;;
esac
d_fcntl_can_lock='$d_fcntl_can_lock'
d_fd_macros='$d_fd_macros'
d_fd_set='$d_fd_set'
+d_fdclose='$d_fdclose'
d_fdim='$d_fdim'
d_fds_bits='$d_fds_bits'
d_fegetround='$d_fegetround'
d_shmdt='$d_shmdt'
d_shmget='$d_shmget'
d_sigaction='$d_sigaction'
+d_siginfo_si_errno='$d_siginfo_si_errno'
+d_siginfo_si_pid='$d_siginfo_si_pid'
+d_siginfo_si_uid='$d_siginfo_si_uid'
+d_siginfo_si_addr='$d_siginfo_si_addr'
+d_siginfo_si_status='$d_siginfo_si_status'
+d_siginfo_si_band='$d_siginfo_si_band'
+d_siginfo_si_value='$d_siginfo_si_value'
d_signbit='$d_signbit'
d_sigprocmask='$d_sigprocmask'
d_sigsetjmp='$d_sigsetjmp'
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