# 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 -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="$*"
+# Debian 4.0 puts ndbm in the -lgdbm_compat library.
+libswanted="$libswanted gdbm_compat"
+
# 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.)
# Check if we're about to use Intel's ICC compiler
case "`${cc:-cc} -V 2>&1`" in
*"Intel(R) C++ Compiler"*|*"Intel(R) C Compiler"*)
+ # record the version, formats:
+ # icc (ICC) 10.1 20080801
+ # icpc (ICC) 10.1 20080801
+ # followed by a copyright on the second line
+ ccversion=`${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 $ccflags"
+ # Prevent relocation errors on 64bits arch
+ case "`uname -m`" in
+ *ia64*|*x86_64*)
+ cccdlflags='-fPIC'
+ ;;
+ esac
# If we're using ICC, we usually want the best performance
case "$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
;;
esac
+# 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 $PATH than the system gcc,
+# we don't want its libraries. So we try to prefer the system gcc
+# Still, as an escape hatch, allow Configure command line overrides to
+# plibpth to bypass this check.
+if [ -x /usr/bin/gcc ] ; then
+ gcc=/usr/bin/gcc
+else
+ gcc=gcc
+fi
+
+case "$plibpth" in
+'') plibpth=`$gcc -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
+
# 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>
+#include <unistd.h>
main() {
char buffer[4];
int i=open("a.out",O_RDONLY);
# 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'
+if getconf GNU_LIBPTHREAD_VERSION | grep NPTL >/dev/null 2>/dev/null
+then
+ threadshavepids=""
+else
+ threadshavepids="-DTHREADS_HAVE_PIDS"
+fi
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 $threadshavepids $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 we are using g++ we must use nm and force ourselves to use
+# the /usr/lib/libc.a (resetting the libc below to an empty string
+# makes Configure to look for the right one) because the symbol
+# scanning tricks of Configure will crash and burn horribly.
+case "$cc" in
+*g++*) usenm=true
+ libc=''
+ ;;
+esac
+
+# If using g++, the Configure scan for dlopen() and (especially)
+# dlerror() might fail, easier just to forcibly hint them in.
+case "$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 -u $DBLIB | 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