# Updated Thu May 30 10:50:22 EDT 1996 by <doughera@lafayette.edu>
# Updated Fri Jun 21 11:07:54 EDT 1996
-# NDBM support for ELF renabled by <kjahds@kjahds.com>
+# NDBM support for ELF re-enabled by <kjahds@kjahds.com>
# No version of Linux supports setuid scripts.
d_suidsafe='undef'
+# No version of Linux needs libutil for perl.
+i_libutil='undef'
+
# Debian and Red Hat, and perhaps other vendors, provide both runtime and
# development packages for some libraries. The runtime packages contain shared
# libraries with version information in their names (e.g., libgdbm.so.1.7.3);
# libgdbmg1-dev (development version of GNU libc 2-linked GDBM library)
# So make sure that for any libraries you wish to link Perl with under
# Debian or Red Hat you have the -dev packages installed.
-#
+
+# SuSE Linux can be used as cross-compilation host for Cray XT4 Catamount/Qk.
+if test -d /opt/xt-pe
+then
+ case "`${cc:-cc} -V 2>&1`" in
+ *catamount*) . hints/catamount.sh; return ;;
+ esac
+fi
+
# Some operating systems (e.g., Solaris 2.6) will link to a versioned shared
# library implicitly. For example, on Solaris, `ld foo.o -lgdbm' will find an
# appropriate version of libgdbm, if one is available; Linux, however, doesn't
shift
libswanted="$*"
-# If you have glibc, then report the version for ./myconfig bug reporting.
-# (Configure doesn't need to know the specific version since it just uses
-# gcc to load the library for all tests.)
-# We don't use __GLIBC__ and __GLIBC_MINOR__ because they
-# are insufficiently precise to distinguish things like
-# libc-2.0.6 and libc-2.0.7.
-if test -L /lib/libc.so.6; then
- libc=`ls -l /lib/libc.so.6 | awk '{print $NF}'`
- libc=/lib/$libc
+# Debian 4.0 puts ndbm in the -lgdbm_compat library.
+echo $libs
+if echo " $libswanted " | grep -q ' gdbm '; then
+ # Only add if gdbm is in libswanted.
+ libswanted="$libswanted gdbm_compat"
fi
# Configure may fail to find lstat() since it's a static/inline
'') usemymalloc='n' ;;
esac
+uname_minus_m="`$run uname -m 2>/dev/null`"
+uname_minus_m="${uname_minus_m:-"$targetarch"}"
+
# Check if we're about to use Intel's ICC compiler
case "`${cc:-cc} -V 2>&1`" in
-*"Intel(R) C++ Compiler"*|*"Intel(R) C Compiler"*)
+*"Intel(R) C"*" Compiler"*)
+ # record the version, formats:
+ # icc (ICC) 10.1 20080801
+ # icpc (ICC) 10.1 20080801
+ # followed by a copyright on the second line
+ ccversion=`${cc:-cc} --version | sed -n -e 's/^icp\?c \((ICC) \)\?//p'`
# This is needed for Configure's prototype checks to work correctly
- # The -mp1 flag is needed to pass cmp related tests
- ccflags="-we147 -mp1 $ccflags"
+ # The -mp flag is needed to pass various floating point related tests
+ # The -no-gcc flag is needed otherwise, icc pretends (poorly) to be gcc
+ ccflags="-we147 -mp -no-gcc $ccflags"
+ # Prevent relocation errors on 64bits arch
+ case "$uname_minus_m" in
+ *ia64*|*x86_64*)
+ cccdlflags='-fPIC'
+ ;;
+ esac
# If we're using ICC, we usually want the best performance
case "$optimize" in
'') optimize='-O3' ;;
esac
;;
-*"Sun C"*)
- optimize='-xO2'
+*" Sun "*"C"*)
+ # Sun's C compiler, which might have a 'tag' name between
+ # 'Sun' and the 'C': Examples:
+ # cc: Sun C 5.9 Linux_i386 Patch 124871-01 2007/07/31
+ # cc: Sun Ceres C 5.10 Linux_i386 2008/07/10
+ test "$optimize" || optimize='-xO2'
cccdlflags='-KPIC'
lddlflags='-G -Bdynamic'
+ # Sun C doesn't support gcc attributes, but, in many cases, doesn't
+ # complain either. Not all cases, though.
+ d_attribute_format='undef'
+ d_attribute_malloc='undef'
+ d_attribute_nonnull='undef'
+ d_attribute_noreturn='undef'
+ d_attribute_pure='undef'
+ d_attribute_unused='undef'
+ d_attribute_warn_unused_result='undef'
;;
esac
# use -O2 by default ; -O3 doesn't seem to bring significant benefits with gcc
'')
optimize='-O2'
- case "`uname -m`" in
+ case "$uname_minus_m" in
ppc*)
# on ppc, it seems that gcc (at least gcc 3.3.2) isn't happy
# with -O2 ; so downgrade to -O1.
;;
esac
-# Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com>
-# for this test.
-cat >try.c <<'EOM'
-/* Test for whether ELF binaries are produced */
-#include <fcntl.h>
-#include <stdlib.h>
-main() {
- char buffer[4];
- int i=open("a.out",O_RDONLY);
- if(i==-1)
- exit(1); /* fail */
- if(read(i,&buffer[0],4)<4)
- exit(1); /* fail */
- if(buffer[0] != 127 || buffer[1] != 'E' ||
- buffer[2] != 'L' || buffer[3] != 'F')
- exit(1); /* fail */
- exit(0); /* succeed (yes, it's ELF) */
-}
-EOM
-if ${cc:-gcc} try.c >/dev/null 2>&1 && $run ./a.out; then
- cat <<'EOM' >&4
-
-You appear to have ELF support. I'll try to use it for dynamic loading.
-If dynamic loading doesn't work, read hints/linux.sh for further information.
-EOM
-
+# Ubuntu 11.04 (and later, presumably) doesn't keep most libraries
+# (such as -lm) in /lib or /usr/lib. So we have to ask gcc to tell us
+# where to look. We don't want gcc's own libraries, however, so we
+# filter those out.
+# This could be conditional on Unbuntu, but other distributions may
+# follow suit, and this scheme seems to work even on rather old gcc's.
+# This unconditionally uses gcc because even if the user is using another
+# compiler, we still need to find the math library and friends, and I don't
+# know how other compilers will cope with that situation.
+# Morever, if the user has their own gcc earlier in $PATH than the system gcc,
+# we don't want its libraries. So we try to prefer the system gcc
+# Still, as an escape hatch, allow Configure command line overrides to
+# plibpth to bypass this check.
+if [ -x /usr/bin/gcc ] ; then
+ gcc=/usr/bin/gcc
+# clang also provides -print-search-dirs
+elif ${cc:-cc} --version 2>/dev/null | grep -q '^clang ' ; then
+ gcc=${cc:-cc}
else
- cat <<'EOM' >&4
+ gcc=gcc
+fi
-You don't have an ELF gcc. I will use dld if possible. If you are
-using a version of DLD earlier than 3.2.6, or don't have it at all, you
-should probably upgrade. If you are forced to use 3.2.4, you should
-uncomment a couple of lines in hints/linux.sh and restart Configure so
-that shared libraries will be disallowed.
+case "$plibpth" in
+'') plibpth=`LANG=C LC_ALL=C $gcc $ccflags $ldflags -print-search-dirs | grep libraries |
+ cut -f2- -d= | tr ':' $trnl | grep -v 'gcc' | sed -e 's:/$::'`
+ set X $plibpth # Collapse all entries on one line
+ shift
+ plibpth="$*"
+ ;;
+esac
-EOM
- lddlflags="-r $lddlflags"
- # These empty values are so that Configure doesn't put in the
- # Linux ELF values.
- ccdlflags=' '
- cccdlflags=' '
- ccflags="-DOVR_DBL_DIG=14 $ccflags"
- so='sa'
- dlext='o'
- nm_so_opt=' '
- ## If you are using DLD 3.2.4 which does not support shared libs,
- ## uncomment the next two lines:
- #ldflags="-static"
- #so='none'
-
- # In addition, on some systems there is a problem with perl and NDBM
- # which causes AnyDBM and NDBM_File to lock up. This is evidenced
- # in the tests as AnyDBM just freezing. Apparently, this only
- # happens on a.out systems, so we disable NDBM for all a.out linux
- # systems. If someone can suggest a more robust test
- # that would be appreciated.
- #
- # More info:
- # Date: Wed, 7 Feb 1996 03:21:04 +0900
- # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp>
- #
- # I tried compiling with DBM support and sure enough things locked up
- # just as advertised. Checking into it, I found that the lockup was
- # during the call to dbm_open. Not *in* dbm_open -- but between the call
- # to and the jump into.
- #
- # To make a long story short, making sure that the *.a and *.sa pairs of
- # /usr/lib/lib{m,db,gdbm}.{a,sa}
- # were perfectly in sync took care of it.
- #
- # This will generate a harmless Whoa There! message
- case "$d_dbm_open" in
- '') cat <<'EOM' >&4
-
-Disabling ndbm. This will generate a Whoa There message in Configure.
-Read hints/linux.sh for further information.
-EOM
- # You can override this with Configure -Dd_dbm_open
- d_dbm_open=undef
- ;;
- esac
-fi
+# For the musl libc, perl should #define _GNU_SOURCE. Otherwise, some
+# available functions, like memem, won't be used. See the discussion in
+# [perl #133760]. musl doesn't offer an easy way to identify it, but,
+# at least on alpine linux, the ldd --version output contains the
+# string 'musl.'
+case `ldd --version 2>&1` in
+ musl*) ccflags="$ccflags -D_GNU_SOURCE" ;;
+ *) ;;
+esac
+
+# libquadmath is sometimes installed as gcc internal library,
+# so contrary to our usual policy of *not* looking at gcc internal
+# directories we now *do* look at them, in case they contain
+# the quadmath library.
+# XXX This may apply to other gcc internal libraries, if such exist.
+# XXX This could be at Configure level, but then the $gcc is messy.
+case "$usequadmath" in
+"$define")
+ for d in `LANG=C LC_ALL=C $gcc $ccflags $ldflags -print-search-dirs | grep libraries | cut -f2- -d= | tr ':' $trnl | grep 'gcc' | sed -e 's:/$::'`
+ do
+ case `ls $d/*libquadmath*$so* 2>/dev/null` in
+ $d/*libquadmath*$so*) xlibpth="$xlibpth $d" ;;
+ esac
+ done
+ ;;
+esac
-rm -f try.c a.out
+case "$libc" in
+'')
+# If you have glibc, then report the version for ./myconfig bug reporting.
+# (Configure doesn't need to know the specific version since it just uses
+# gcc to load the library for all tests.)
+# We don't use __GLIBC__ and __GLIBC_MINOR__ because they
+# are insufficiently precise to distinguish things like
+# libc-2.0.6 and libc-2.0.7.
+ for p in $plibpth
+ do
+ for trylib in libc.so.6 libc.so
+ do
+ if $test -e $p/$trylib; then
+ libc=`ls -l $p/$trylib | awk '{print $NF}'`
+ if $test "X$libc" != X; then
+ break
+ fi
+ fi
+ done
+ if $test "X$libc" != X; then
+ break
+ fi
+ done
+ ;;
+esac
-if /bin/sh -c exit; then
+if ${sh:-/bin/sh} -c exit; then
echo ''
echo 'You appear to have a working bash. Good.'
else
#'osfmach3ppc') ccdlflags='-Wl,-E' ;;
#esac
-case "`uname -m`" in
+case "$uname_minus_m" in
sparc*)
case "$cccdlflags" in
*-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;;
# version of -lgdbm which is a bad idea. So if we have 'nm'
# make sure it can read the file
# NI-S 2003/08/07
-if [ -r /usr/lib/libndbm.so -a -x /usr/bin/nm ] ; then
- if /usr/bin/nm /usr/lib/libndbm.so >/dev/null 2>&1 ; then
- echo 'Your shared -lndbm seems to be a real library.'
- else
- echo 'Your shared -lndbm is not a real library.'
- set `echo X "$libswanted "| sed -e 's/ ndbm / /'`
- shift
- libswanted="$*"
- fi
-fi
+case "$nm" in
+ '') ;;
+ *)
+ for p in $plibpth
+ do
+ if $test -r $p/libndbm.so; then
+ if $nm $p/libndbm.so >/dev/null 2>&1 ; then
+ echo 'Your shared -lndbm seems to be a real library.'
+ _libndbm_real=1
+ break
+ fi
+ fi
+ done
+ if $test "X$_libndbm_real" = X; then
+ echo 'Your shared -lndbm is not a real library.'
+ set `echo X "$libswanted "| sed -e 's/ ndbm / /'`
+ shift
+ libswanted="$*"
+ fi
+ ;;
+esac
+# Linux on Synology.
+if [ -f /etc/synoinfo.conf -a -d /usr/syno ]; then
+ # Tested on Synology DS213 and DS413
+ # OS version info in /etc.defaults/VERSION
+ # http://forum.synology.com/wiki/index.php/What_kind_of_CPU_does_my_NAS_have
+ # Synology DS213 running DSM 4.3-3810-0 (2013-11-06)
+ # CPU model Marvell Kirkwood mv6282 ARMv5te
+ # Linux 2.6.32.12 #3810 Wed Nov 6 05:13:41 CST 2013 armv5tel GNU/Linux
+ # Synology DS413 running DSM 4.3-3810-0 (2013-11-06)
+ # CPU model Freescale QorIQ P1022 ppc (e500v2)
+ # linux 2.6.32.12 #3810 ppc GNU/Linux
+ # All development stuff installed with ipkg is in /opt
+ if [ "$LANG" = "" -o "$LANG" = "C" ]; then
+ echo 'Your LANG is safe'
+ else
+ echo 'Please set $LANG to "C". All other $LANG settings will cause havoc' >&4
+ LANG=C
+ fi
+ echo 'Setting up to use /opt/*' >&4
+ locincpth="/opt/include $locincpth"
+ libpth="/opt/lib $libpth"
+ libspth="/opt/lib $libspth"
+ loclibpth="/opt/lib $loclibpth"
+ # POSIX will not link without the pthread lib
+ libswanted="$libswanted pthread"
+ echo "$libswanted" >&4
+fi
# This script UU/usethreads.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use threads.
cat > UU/usethreads.cbu <<'EOCBU'
case "$usethreads" in
$define|true|[yY]*)
- ccflags="-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS $ccflags"
- set `echo X "$libswanted "| sed -e 's/ c / pthread c /'`
- shift
- libswanted="$*"
+ ccflags="-D_REENTRANT -D_GNU_SOURCE $ccflags"
+ if echo $libswanted | grep -v pthread >/dev/null
+ then
+ set `echo X "$libswanted "| sed -e 's/ c / pthread c /'`
+ shift
+ libswanted="$*"
+ fi
# Somehow at least in Debian 2.2 these manage to escape
# the #define forest of <features.h> and <time.h> so that
libswanted="$*"
;;
esac
+
+# If using g++, the Configure scan for dlopen() and (especially)
+# dlerror() might fail, easier just to forcibly hint them in.
+case "$cc" in
+*g++*)
+ d_dlopen='define'
+ d_dlerror='define'
+ ;;
+esac
+
+# Under some circumstances libdb can get built in such a way as to
+# need pthread explicitly linked.
+
+libdb_needs_pthread="N"
+
+if echo " $libswanted " | grep -v " pthread " >/dev/null
+then
+ if echo " $libswanted " | grep " db " >/dev/null
+ then
+ for DBDIR in $glibpth
+ do
+ DBLIB="$DBDIR/libdb.so"
+ if [ -f $DBLIB ]
+ then
+ if ${nm:-nm} -u $DBLIB 2>/dev/null | grep pthread >/dev/null
+ then
+ if ldd $DBLIB | grep pthread >/dev/null
+ then
+ libdb_needs_pthread="N"
+ else
+ libdb_needs_pthread="Y"
+ fi
+ fi
+ fi
+ done
+ fi
+fi
+
+case "$libdb_needs_pthread" in
+ "Y")
+ libswanted="$libswanted pthread"
+ ;;
+esac
https://perl5.git.perl.org / perl5.git / blobdiff