2 # Original version by rsanders
3 # Additional support by Kenneth Albanowski <kjahds@kjahds.com>
5 # ELF support by H.J. Lu <hjl@nynexst.com>
6 # Additional info from Nigel Head <nhead@ESOC.bitnet>
7 # and Kenneth Albanowski <kjahds@kjahds.com>
9 # Consolidated by Andy Dougherty <doughera@lafayette.edu>
11 # Updated Thu Feb 8 11:56:10 EST 1996
13 # Updated Thu May 30 10:50:22 EDT 1996 by <doughera@lafayette.edu>
15 # Updated Fri Jun 21 11:07:54 EDT 1996
16 # NDBM support for ELF re-enabled by <kjahds@kjahds.com>
18 # No version of Linux supports setuid scripts.
21 # No version of Linux needs libutil for perl.
24 # Debian and Red Hat, and perhaps other vendors, provide both runtime and
25 # development packages for some libraries. The runtime packages contain shared
26 # libraries with version information in their names (e.g., libgdbm.so.1.7.3);
27 # the development packages supplement this with versionless shared libraries
30 # If you want to link against such a library, you must install the development
31 # version of the package.
33 # These packages use a -dev naming convention in both Debian and Red Hat:
34 # libgdbmg1 (non-development version of GNU libc 2-linked GDBM library)
35 # libgdbmg1-dev (development version of GNU libc 2-linked GDBM library)
36 # So make sure that for any libraries you wish to link Perl with under
37 # Debian or Red Hat you have the -dev packages installed.
39 # SuSE Linux can be used as cross-compilation host for Cray XT4 Catamount/Qk.
42 case "`${cc:-cc} -V 2>&1`" in
43 *catamount*) . hints/catamount.sh; return ;;
47 # Some operating systems (e.g., Solaris 2.6) will link to a versioned shared
48 # library implicitly. For example, on Solaris, `ld foo.o -lgdbm' will find an
49 # appropriate version of libgdbm, if one is available; Linux, however, doesn't
50 # do the implicit mapping.
51 ignore_versioned_solibs='y'
53 # BSD compatibility library no longer needed
54 # 'kaffe' has a /usr/lib/libnet.so which is not at all relevant for perl.
55 # bind causes issues with several reentrant functions
56 set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /' -e 's/ bind / /'`
60 # Debian 4.0 puts ndbm in the -lgdbm_compat library.
62 if echo " $libswanted " | grep -q ' gdbm '; then
63 # Only add if gdbm is in libswanted.
64 libswanted="$libswanted gdbm_compat"
67 # Configure may fail to find lstat() since it's a static/inline
68 # function in <sys/stat.h>.
72 case "$usemallocwrap" in
73 '') usemallocwrap='define' ;;
76 # The system malloc() is about as fast and as frugal as perl's.
77 # Since the system malloc() has been the default since at least
78 # 5.001, we might as well leave it that way. --AD 10 Jan 2002
79 case "$usemymalloc" in
80 '') usemymalloc='n' ;;
83 uname_minus_m="`$run uname -m 2>/dev/null`"
84 uname_minus_m="${uname_minus_m:-"$targetarch"}"
86 # Check if we're about to use Intel's ICC compiler
87 case "`${cc:-cc} -V 2>&1`" in
88 *"Intel(R) C++ Compiler"*|*"Intel(R) C Compiler"*)
89 # record the version, formats:
90 # icc (ICC) 10.1 20080801
91 # icpc (ICC) 10.1 20080801
92 # followed by a copyright on the second line
93 ccversion=`${cc:-cc} --version | sed -n -e 's/^icp\?c \((ICC) \)\?//p'`
94 # This is needed for Configure's prototype checks to work correctly
95 # The -mp flag is needed to pass various floating point related tests
96 # The -no-gcc flag is needed otherwise, icc pretends (poorly) to be gcc
97 ccflags="-we147 -mp -no-gcc $ccflags"
98 # Prevent relocation errors on 64bits arch
99 case "$uname_minus_m" in
104 # If we're using ICC, we usually want the best performance
106 '') optimize='-O3' ;;
110 # Sun's C compiler, which might have a 'tag' name between
111 # 'Sun' and the 'C': Examples:
112 # cc: Sun C 5.9 Linux_i386 Patch 124871-01 2007/07/31
113 # cc: Sun Ceres C 5.10 Linux_i386 2008/07/10
114 test "$optimize" || optimize='-xO2'
116 lddlflags='-G -Bdynamic'
117 # Sun C doesn't support gcc attributes, but, in many cases, doesn't
118 # complain either. Not all cases, though.
119 d_attribute_format='undef'
120 d_attribute_malloc='undef'
121 d_attribute_nonnull='undef'
122 d_attribute_noreturn='undef'
123 d_attribute_pure='undef'
124 d_attribute_unused='undef'
125 d_attribute_warn_unused_result='undef'
130 # use -O2 by default ; -O3 doesn't seem to bring significant benefits with gcc
133 case "$uname_minus_m" in
135 # on ppc, it seems that gcc (at least gcc 3.3.2) isn't happy
136 # with -O2 ; so downgrade to -O1.
140 # This architecture has had various problems with gcc's
141 # in the 3.2, 3.3, and 3.4 releases when optimized to -O2. See
142 # RT #37156 for a discussion of the problem.
143 case "`${cc:-gcc} -v 2>&1`" in
144 *"version 3.2"*|*"version 3.3"*|*"version 3.4"*)
145 ccflags="-fno-delete-null-pointer-checks $ccflags"
153 # Ubuntu 11.04 (and later, presumably) doesn't keep most libraries
154 # (such as -lm) in /lib or /usr/lib. So we have to ask gcc to tell us
155 # where to look. We don't want gcc's own libraries, however, so we
157 # This could be conditional on Unbuntu, but other distributions may
158 # follow suit, and this scheme seems to work even on rather old gcc's.
159 # This unconditionally uses gcc because even if the user is using another
160 # compiler, we still need to find the math library and friends, and I don't
161 # know how other compilers will cope with that situation.
162 # Morever, if the user has their own gcc earlier in $PATH than the system gcc,
163 # we don't want its libraries. So we try to prefer the system gcc
164 # Still, as an escape hatch, allow Configure command line overrides to
165 # plibpth to bypass this check.
166 if [ -x /usr/bin/gcc ] ; then
173 '') plibpth=`LANG=C LC_ALL=C $gcc $ccflags $ldflags -print-search-dirs | grep libraries |
174 cut -f2- -d= | tr ':' $trnl | grep -v 'gcc' | sed -e 's:/$::'`
175 set X $plibpth # Collapse all entries on one line
183 # If you have glibc, then report the version for ./myconfig bug reporting.
184 # (Configure doesn't need to know the specific version since it just uses
185 # gcc to load the library for all tests.)
186 # We don't use __GLIBC__ and __GLIBC_MINOR__ because they
187 # are insufficiently precise to distinguish things like
188 # libc-2.0.6 and libc-2.0.7.
191 for trylib in libc.so.6 libc.so
193 if $test -e $p/$trylib; then
194 libc=`ls -l $p/$trylib | awk '{print $NF}'`
195 if $test "X$libc" != X; then
200 if $test "X$libc" != X; then
207 # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com>
210 /* Test for whether ELF binaries are produced */
216 int i=open("a.out",O_RDONLY);
219 if(read(i,&buffer[0],4)<4)
221 if(buffer[0] != 127 || buffer[1] != 'E' ||
222 buffer[2] != 'L' || buffer[3] != 'F')
224 exit(0); /* succeed (yes, it's ELF) */
227 if ${cc:-gcc} $ccflags $ldflags try.c >/dev/null 2>&1 && $run ./a.out; then
230 You appear to have ELF support. I'll try to use it for dynamic loading.
231 If dynamic loading doesn't work, read hints/linux.sh for further information.
237 You don't have an ELF gcc. I will use dld if possible. If you are
238 using a version of DLD earlier than 3.2.6, or don't have it at all, you
239 should probably upgrade. If you are forced to use 3.2.4, you should
240 uncomment a couple of lines in hints/linux.sh and restart Configure so
241 that shared libraries will be disallowed.
244 lddlflags="-r $lddlflags"
245 # These empty values are so that Configure doesn't put in the
249 ccflags="-DOVR_DBL_DIG=14 $ccflags"
253 ## If you are using DLD 3.2.4 which does not support shared libs,
254 ## uncomment the next two lines:
258 # In addition, on some systems there is a problem with perl and NDBM
259 # which causes AnyDBM and NDBM_File to lock up. This is evidenced
260 # in the tests as AnyDBM just freezing. Apparently, this only
261 # happens on a.out systems, so we disable NDBM for all a.out linux
262 # systems. If someone can suggest a more robust test
263 # that would be appreciated.
266 # Date: Wed, 7 Feb 1996 03:21:04 +0900
267 # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp>
269 # I tried compiling with DBM support and sure enough things locked up
270 # just as advertised. Checking into it, I found that the lockup was
271 # during the call to dbm_open. Not *in* dbm_open -- but between the call
272 # to and the jump into.
274 # To make a long story short, making sure that the *.a and *.sa pairs of
275 # /usr/lib/lib{m,db,gdbm}.{a,sa}
276 # were perfectly in sync took care of it.
278 # This will generate a harmless Whoa There! message
279 case "$d_dbm_open" in
282 Disabling ndbm. This will generate a Whoa There message in Configure.
283 Read hints/linux.sh for further information.
285 # You can override this with Configure -Dd_dbm_open
293 if ${sh:-/bin/sh} -c exit; then
295 echo 'You appear to have a working bash. Good.'
299 *********************** Warning! *********************
300 It would appear you have a defective bash shell installed. This is likely to
301 give you a failure of op/exec test #5 during the test phase of the build,
302 Upgrading to a recent version (1.14.4 or later) should fix the problem.
303 ******************************************************
309 # The following csh consistently coredumped in the test directory
310 # "/home/mikedlr/perl5.003_94/t", though not most other directories.
312 #Name : csh Distribution: Red Hat Linux (Rembrandt)
313 #Version : 5.2.6 Vendor: Red Hat Software
314 #Release : 3 Build Date: Fri May 24 19:42:14 1996
315 #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com
316 #Group : Shells Source RPM: csh-5.2.6-3.src.rpm
318 #Description : BSD c-shell
320 # For this reason I suggest using the much bug-fixed tcsh for globbing
323 # November 2001: That warning's pretty old now and probably not so
324 # relevant, especially since perl now uses File::Glob for globbing.
325 # We'll still look for tcsh, but tone down the warnings.
326 # Andy Dougherty, Nov. 6, 2001
327 if $csh -c 'echo $version' >/dev/null 2>&1; then
328 echo 'Your csh is really tcsh. Good.'
330 if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then
331 echo "Found tcsh. I'll use it for globbing."
332 # We can't change Configure's setting of $csh, due to the way
333 # Configure handles $d_portable and commands found in $loclist.
334 # We can set the value for CSH in config.h by setting full_csh.
336 elif [ -f "$csh" ]; then
337 echo "Couldn't find tcsh. Csh-based globbing might be broken."
341 # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu>
342 # Message-Id: <33EF1634.B36B6500@pobox.com>
344 # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need
345 # special flags passed in order for dynamic loading to work.
346 # instead of the recommended:
348 # ccdlflags='-rdynamic'
353 # So if your DR2 (DR3 came out summer 1998, consider upgrading)
354 # has problems with dynamic loading, uncomment the
355 # following three lines, make distclean, and re-Configure:
356 #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in
357 #'osfmach3ppc') ccdlflags='-Wl,-E' ;;
360 case "$uname_minus_m" in
362 case "$cccdlflags" in
363 *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;;
365 *) cccdlflags="$cccdlflags -fPIC" ;;
370 # SuSE8.2 has /usr/lib/libndbm* which are ld scripts rather than
371 # true libraries. The scripts cause binding against static
372 # version of -lgdbm which is a bad idea. So if we have 'nm'
373 # make sure it can read the file
380 if $test -r $p/libndbm.so; then
381 if $nm $p/libndbm.so >/dev/null 2>&1 ; then
382 echo 'Your shared -lndbm seems to be a real library.'
388 if $test "X$_libndbm_real" = X; then
389 echo 'Your shared -lndbm is not a real library.'
390 set `echo X "$libswanted "| sed -e 's/ ndbm / /'`
398 if [ -f /etc/synoinfo.conf -a -d /usr/syno ]; then
399 # Tested on Synology DS213 and DS413
400 # OS version info in /etc.defaults/VERSION
401 # http://forum.synology.com/wiki/index.php/What_kind_of_CPU_does_my_NAS_have
402 # Synology DS213 running DSM 4.3-3810-0 (2013-11-06)
403 # CPU model Marvell Kirkwood mv6282 ARMv5te
404 # Linux 2.6.32.12 #3810 Wed Nov 6 05:13:41 CST 2013 armv5tel GNU/Linux
405 # Synology DS413 running DSM 4.3-3810-0 (2013-11-06)
406 # CPU model Freescale QorIQ P1022 ppc (e500v2)
407 # linux 2.6.32.12 #3810 ppc GNU/Linux
408 # All development stuff installed with ipkg is in /opt
409 if [ "$LANG" = "" -o "$LANG" = "C" ]; then
410 echo 'Your LANG is safe'
412 echo 'Please set $LANG to "C". All other $LANG settings will cause havoc' >&4
415 echo 'Setting up to use /opt/*' >&4
416 locincpth="/opt/include $locincpth"
417 libpth="/opt/lib $libpth"
418 libspth="/opt/lib $libspth"
419 loclibpth="/opt/lib $loclibpth"
420 # POSIX will not link without the pthread lib
421 libswanted="$libswanted pthread"
422 echo "$libswanted" >&4
425 # This script UU/usethreads.cbu will get 'called-back' by Configure
426 # after it has prompted the user for whether to use threads.
427 cat > UU/usethreads.cbu <<'EOCBU'
428 case "$usethreads" in
430 ccflags="-D_REENTRANT -D_GNU_SOURCE $ccflags"
431 if echo $libswanted | grep -v pthread >/dev/null
433 set `echo X "$libswanted "| sed -e 's/ c / pthread c /'`
438 # Somehow at least in Debian 2.2 these manage to escape
439 # the #define forest of <features.h> and <time.h> so that
440 # the hasproto macro of Configure doesn't see these protos,
441 # even with the -D_GNU_SOURCE.
443 d_asctime_r_proto="$define"
444 d_crypt_r_proto="$define"
445 d_ctime_r_proto="$define"
446 d_gmtime_r_proto="$define"
447 d_localtime_r_proto="$define"
448 d_random_r_proto="$define"
454 cat > UU/uselargefiles.cbu <<'EOCBU'
455 # This script UU/uselargefiles.cbu will get 'called-back' by Configure
456 # after it has prompted the user for whether to use large files.
457 case "$uselargefiles" in
458 ''|$define|true|[yY]*)
459 # Keep this in the left margin.
460 ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
462 ccflags="$ccflags $ccflags_uselargefiles"
467 # Purify fails to link Perl if a "-lc" is passed into its linker
468 # due to duplicate symbols.
471 set `echo X "$libswanted "| sed -e 's/ c / /'`
477 # If using g++, the Configure scan for dlopen() and (especially)
478 # dlerror() might fail, easier just to forcibly hint them in.
486 # Under some circumstances libdb can get built in such a way as to
487 # need pthread explicitly linked.
489 libdb_needs_pthread="N"
491 if echo " $libswanted " | grep -v " pthread " >/dev/null
493 if echo " $libswanted " | grep " db " >/dev/null
495 for DBDIR in $glibpth
497 DBLIB="$DBDIR/libdb.so"
500 if ${nm:-nm} -u $DBLIB | grep pthread >/dev/null
502 if ldd $DBLIB | grep pthread >/dev/null
504 libdb_needs_pthread="N"
506 libdb_needs_pthread="Y"
514 case "$libdb_needs_pthread" in
516 libswanted="$libswanted pthread"