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"*)
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 # cc: Studio 12.6 Sun C 5.15 Linux_i386 2017/05/30
115 # GH #21535 - apparent optimization bug in workshop cc
116 test "$optimize" || optimize='-O1'
118 lddlflags='-G -Bdynamic'
119 # Sun C doesn't support gcc attributes, but, in many cases, doesn't
120 # complain either. Not all cases, though.
121 d_attribute_format='undef'
122 d_attribute_malloc='undef'
123 d_attribute_nonnull='undef'
124 d_attribute_noreturn='undef'
125 d_attribute_pure='undef'
126 d_attribute_unused='undef'
127 d_attribute_warn_unused_result='undef'
129 *c99) # Without -Xa c99 errors on some Linux system headers
130 # in particular zero sized arrays at the end of structs
133 *) ccflags="$ccflags -Xa" ;;
141 # use -O2 by default ; -O3 doesn't seem to bring significant benefits with gcc
144 case "$uname_minus_m" in
146 # on ppc, it seems that gcc (at least gcc 3.3.2) isn't happy
147 # with -O2 ; so downgrade to -O1.
151 # This architecture has had various problems with gcc's
152 # in the 3.2, 3.3, and 3.4 releases when optimized to -O2. See
153 # RT #37156 for a discussion of the problem.
154 case "`${cc:-gcc} -v 2>&1`" in
155 *"version 3.2"*|*"version 3.3"*|*"version 3.4"*)
156 ccflags="-fno-delete-null-pointer-checks $ccflags"
164 # Ubuntu 11.04 (and later, presumably) doesn't keep most libraries
165 # (such as -lm) in /lib or /usr/lib. So we have to ask gcc to tell us
166 # where to look. We don't want gcc's own libraries, however, so we
168 # This could be conditional on Ubuntu, but other distributions may
169 # follow suit, and this scheme seems to work even on rather old gcc's.
170 # This unconditionally uses gcc because even if the user is using another
171 # compiler, we still need to find the math library and friends, and I don't
172 # know how other compilers will cope with that situation.
173 # Morever, if the user has their own gcc earlier in $PATH than the system gcc,
174 # we don't want its libraries. So we try to prefer the system gcc
175 # Still, as an escape hatch, allow Configure command line overrides to
176 # plibpth to bypass this check.
177 if [ -x /usr/bin/gcc ] ; then
179 # clang also provides -print-search-dirs
180 elif ${cc:-cc} --version 2>/dev/null | grep -q -e '^clang version' -e ' clang version'; then
187 '') plibpth=`LANG=C LC_ALL=C $gcc $ccflags $ldflags -print-search-dirs | grep libraries |
188 cut -f2- -d= | tr ':' $trnl | grep -v 'gcc' | sed -e 's:/$::'`
189 set X $plibpth # Collapse all entries on one line
195 # For the musl libc, perl should #define _GNU_SOURCE. Otherwise, some
196 # available functions, like memem, won't be used. See the discussion in
197 # [perl #133760]. musl doesn't offer an easy way to identify it, but,
198 # at least on alpine linux, the ldd --version output contains the
200 case `ldd --version 2>&1` in
201 musl*) ccflags="$ccflags -D_GNU_SOURCE" ;;
205 # libquadmath is sometimes installed as gcc internal library,
206 # so contrary to our usual policy of *not* looking at gcc internal
207 # directories we now *do* look at them, in case they contain
208 # the quadmath library.
209 # XXX This may apply to other gcc internal libraries, if such exist.
210 # XXX This could be at Configure level, but then the $gcc is messy.
211 case "$usequadmath" in
213 for d in `LANG=C LC_ALL=C $gcc $ccflags $ldflags -print-search-dirs | grep libraries | cut -f2- -d= | tr ':' $trnl | grep 'gcc' | sed -e 's:/$::'`
215 case `ls $d/*libquadmath*$so* 2>/dev/null` in
216 $d/*libquadmath*$so*) xlibpth="$xlibpth $d" ;;
224 # If you have glibc, then report the version for ./myconfig bug reporting.
225 # (Configure doesn't need to know the specific version since it just uses
226 # gcc to load the library for all tests.)
227 # We don't use __GLIBC__ and __GLIBC_MINOR__ because they
228 # are insufficiently precise to distinguish things like
229 # libc-2.0.6 and libc-2.0.7.
232 for trylib in libc.so.6 libc.so
234 if $test -e $p/$trylib; then
235 libc=`ls -l $p/$trylib | awk '{print $NF}'`
236 if $test "X$libc" != X; then
241 if $test "X$libc" != X; then
248 if ${sh:-/bin/sh} -c exit; then
250 echo 'You appear to have a working bash. Good.'
254 *********************** Warning! *********************
255 It would appear you have a defective bash shell installed. This is likely to
256 give you a failure of op/exec test #5 during the test phase of the build,
257 Upgrading to a recent version (1.14.4 or later) should fix the problem.
258 ******************************************************
264 # The following csh consistently coredumped in the test directory
265 # "/home/mikedlr/perl5.003_94/t", though not most other directories.
267 #Name : csh Distribution: Red Hat Linux (Rembrandt)
268 #Version : 5.2.6 Vendor: Red Hat Software
269 #Release : 3 Build Date: Fri May 24 19:42:14 1996
270 #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com
271 #Group : Shells Source RPM: csh-5.2.6-3.src.rpm
273 #Description : BSD c-shell
275 # For this reason I suggest using the much bug-fixed tcsh for globbing
278 # November 2001: That warning's pretty old now and probably not so
279 # relevant, especially since perl now uses File::Glob for globbing.
280 # We'll still look for tcsh, but tone down the warnings.
281 # Andy Dougherty, Nov. 6, 2001
282 if $csh -c 'echo $version' >/dev/null 2>&1; then
283 echo 'Your csh is really tcsh. Good.'
285 if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then
286 echo "Found tcsh. I'll use it for globbing."
287 # We can't change Configure's setting of $csh, due to the way
288 # Configure handles $d_portable and commands found in $loclist.
289 # We can set the value for CSH in config.h by setting full_csh.
291 elif [ -f "$csh" ]; then
292 echo "Couldn't find tcsh. Csh-based globbing might be broken."
296 # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu>
297 # Message-Id: <33EF1634.B36B6500@pobox.com>
299 # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need
300 # special flags passed in order for dynamic loading to work.
301 # instead of the recommended:
303 # ccdlflags='-rdynamic'
308 # So if your DR2 (DR3 came out summer 1998, consider upgrading)
309 # has problems with dynamic loading, uncomment the
310 # following three lines, make distclean, and re-Configure:
311 #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in
312 #'osfmach3ppc') ccdlflags='-Wl,-E' ;;
315 case "$uname_minus_m" in
317 case "$cccdlflags" in
318 *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;;
320 *) cccdlflags="$cccdlflags -fPIC" ;;
325 # SuSE8.2 has /usr/lib/libndbm* which are ld scripts rather than
326 # true libraries. The scripts cause binding against static
327 # version of -lgdbm which is a bad idea. So if we have 'nm'
328 # make sure it can read the file
335 if $test -r $p/libndbm.so; then
336 if $nm $p/libndbm.so >/dev/null 2>&1 ; then
337 echo 'Your shared -lndbm seems to be a real library.'
343 if $test "X$_libndbm_real" = X; then
344 echo 'Your shared -lndbm is not a real library.'
345 set `echo X "$libswanted "| sed -e 's/ ndbm / /'`
353 if [ -f /etc/synoinfo.conf -a -d /usr/syno ]; then
354 # Tested on Synology DS213 and DS413
355 # OS version info in /etc.defaults/VERSION
356 # http://forum.synology.com/wiki/index.php/What_kind_of_CPU_does_my_NAS_have
357 # Synology DS213 running DSM 4.3-3810-0 (2013-11-06)
358 # CPU model Marvell Kirkwood mv6282 ARMv5te
359 # Linux 2.6.32.12 #3810 Wed Nov 6 05:13:41 CST 2013 armv5tel GNU/Linux
360 # Synology DS413 running DSM 4.3-3810-0 (2013-11-06)
361 # CPU model Freescale QorIQ P1022 ppc (e500v2)
362 # linux 2.6.32.12 #3810 ppc GNU/Linux
363 # All development stuff installed with ipkg is in /opt
364 if [ "$LANG" = "" -o "$LANG" = "C" ]; then
365 echo 'Your LANG is safe'
367 echo 'Please set $LANG to "C". All other $LANG settings will cause havoc' >&4
370 echo 'Setting up to use /opt/*' >&4
371 locincpth="/opt/include $locincpth"
372 libpth="/opt/lib $libpth"
373 libspth="/opt/lib $libspth"
374 loclibpth="/opt/lib $loclibpth"
375 # POSIX will not link without the pthread lib
376 libswanted="$libswanted pthread"
377 echo "$libswanted" >&4
380 # This script UU/usethreads.cbu will get 'called-back' by Configure
381 # after it has prompted the user for whether to use threads.
382 cat > UU/usethreads.cbu <<'EOCBU'
383 case "$usethreads" in
385 ccflags="-D_REENTRANT -D_GNU_SOURCE $ccflags"
386 if echo $libswanted | grep -v pthread >/dev/null
388 set `echo X "$libswanted "| sed -e 's/ c / pthread c /'`
393 # Somehow at least in Debian 2.2 these manage to escape
394 # the #define forest of <features.h> and <time.h> so that
395 # the hasproto macro of Configure doesn't see these protos,
396 # even with the -D_GNU_SOURCE.
398 d_asctime_r_proto="$define"
399 d_crypt_r_proto="$define"
400 d_ctime_r_proto="$define"
401 d_gmtime_r_proto="$define"
402 d_localtime_r_proto="$define"
403 d_random_r_proto="$define"
409 cat > UU/uselargefiles.cbu <<'EOCBU'
410 # This script UU/uselargefiles.cbu will get 'called-back' by Configure
411 # after it has prompted the user for whether to use large files.
412 case "$uselargefiles" in
413 ''|$define|true|[yY]*)
414 # Keep this in the left margin.
415 ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
417 ccflags="$ccflags $ccflags_uselargefiles"
422 # Purify fails to link Perl if a "-lc" is passed into its linker
423 # due to duplicate symbols.
426 set `echo X "$libswanted "| sed -e 's/ c / /'`
432 # If using g++, the Configure scan for dlopen() and (especially)
433 # dlerror() might fail, easier just to forcibly hint them in.
441 # Under some circumstances libdb can get built in such a way as to
442 # need pthread explicitly linked.
444 libdb_needs_pthread="N"
446 if echo " $libswanted " | grep -v " pthread " >/dev/null
448 if echo " $libswanted " | grep " db " >/dev/null
450 for DBDIR in $glibpth
452 DBLIB="$DBDIR/libdb.so"
455 if ${nm:-nm} -u $DBLIB 2>/dev/null | grep pthread >/dev/null
457 if ldd $DBLIB | grep pthread >/dev/null
459 libdb_needs_pthread="N"
461 libdb_needs_pthread="Y"
469 case "$libdb_needs_pthread" in
471 libswanted="$libswanted pthread"