# hints/aix_3.sh
#
# On Tue 03 Feb 2004 split off from aix.sh by H.Merijn Brand
# AIX 3.x.x hints thanks to Wayne Scott <wscott@ichips.intel.com>
# Notes:
#
# - shared libperl support is tricky. if ever libperl.a ends up
# in /usr/local/lib/* it can override any subsequent builds of
# that same perl release. to make sure you know where the shared
# libperl.a is coming from do a 'dump -Hv perl' and check all the
# library search paths in the loader header.
#
# it would be nice to warn the user if a libperl.a exists that is
# going to override the current build, but that would be complex.
#
# better yet, a solid fix for this situation should be developed.
alignbytes=8
case "$usemymalloc" in
'') usemymalloc='n' ;;
esac
# Intuiting the existence of system calls under AIX is difficult,
# at best; the safest technique is to find them empirically.
case "$usenm" in
'') usenm='undef'
esac
so="a"
# AIX itself uses .o (libc.o) but we prefer compatibility
# with the rest of the world and with rest of the scripting
# languages (Tcl, Python) and related systems (SWIG).
# Stephanie Beals <bealzy@us.ibm.com>
dlext="so"
# Take possible hint from the environment. If 32-bit is set in the
# environment, we can override it later. If set for 64, the
# 'sizeof' test sees a native 64-bit architecture and never looks back.
case "$use64bitint$use64bitall$usemorebits" in
*$define*) cat >&4 <<EOM
AIX `oslevel` does not support 64-bit interfaces.
You should upgrade to at least AIX 4.3.
EOM
exit
;;
esac
case "$usemorebits" in
if [ "$OBJECT_MODE" = "64" ] then
cat >&4 <<EOF
You have OBJECT_MODE=64 set in the environment.
This would force a full 64-bit build, but AIX 3
does not support 64bit.
EOF
fi
# uname -m output is too specific and not appropriate here
case "$archname" in
'') archname="$osname" ;;
esac
cc=${cc:-cc}
d_fchmod='undef'
ccflags="$ccflags -D_ALL_SOURCE"
# These functions don't work like Perl expects them to.
d_setregid='undef'
d_setreuid='undef'
# Configure finds setrgid and setruid, but they're useless. The man
# pages state:
# setrgid: The EPERM error code is always returned.
# setruid: The EPERM error code is always returned. Processes cannot
# reset only their real user IDs.
d_setrgid='undef'
d_setruid='undef'
# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
#
# Tell perl which symbols to export for dynamic linking.
cccdlflags='none' # All AIX code is position independent
cc_type=xlc # do not export to config.sh
case "$cc" in
*gcc*)
cc_type=gcc
ccdlflags='-Xlinker'
if [ "X$gccversion" = "X" ]; then
# Done too late in Configure if hinted
gccversion=`$cc -dumpversion`
fi
;;
*) ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -v '\.msg\.[A-Za-z_]*\.' | head -1 | awk '{print $1,$2}'`
case "$ccversion" in
'') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$'`
;;
*.*.*.*.*.*.*) # Ahhrgg, more than one C compiler installed
first_cc_path=`which ${cc:-cc}`
case "$first_cc_path" in
*vac*)
cc_type=vac
;;
/usr/bin/cc) # Check the symlink
if [ -h $first_cc_path ]; then
ls -l $first_cc_path > reflect
if grep -i vac reflect >/dev/null 2>&1 ; then
cc_type=vac
fi
rm -f reflect
fi
;;
esac
ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -i $cc_type | head -1`
;;
vac*.*.*.*)
cc_type=vac
;;
esac
ccversion=`echo "$ccversion" | awk '{print $2}'`
case "$ccversion" in
3.6.6.0)
optimize='none'
;;
4.4.0.0|4.4.0.1|4.4.0.2)
cat >&4 <<EOF
***
*** This C compiler ($ccversion) is outdated.
***
*** Please upgrade to at least 4.4.0.3.
***
EOF
;;
5.0.0.0)
cat >&4 <<EOF
***
*** This C compiler ($ccversion) is known to have too many optimizer
*** bugs to compile a working Perl.
***
*** Consider upgrading your C compiler, or getting the GNU cc (gcc).
***
*** Cannot continue, aborting.
EOF
exit 1
;;
5.0.1.0)
cat >&4 <<EOF
***
*** This C compiler ($ccversion) is known to have optimizer problems
*** when compiling regcomp.c.
***
*** Disabling optimization for that file but consider upgrading
*** your C compiler.
***
EOF
regcomp_cflags='optimize='
;;
esac
esac
# the required -bE:$installarchlib/CORE/perl.exp is added by
# libperl.U (Configure) later.
# The first 3 options would not be needed if dynamic libs. could be linked
# with the compiler instead of ld.
# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
# symbol: boot_$(EXP) can it be auto-generated?
lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
case $cc_type in
vac|xlc)
case "$uselongdouble" in
$define|true|[yY]*)
ccflags="$ccflags -qlongdouble"
libswanted="c128 $libswanted"
lddlflags=`echo "$lddlflags " | sed -e 's/ -lc / -lc128 -lc /'`
;;
esac
esac
case "$cc" in
*gcc*) ;;
cc*|xlc*) # cc should've been set by line 116 or so if empty.
if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
case ":$PATH:" in
*:/usr/vac/bin:*) ;;
*) if test ! -x /QOpenSys/usr/bin/$cc; then
# The /QOpenSys/usr/bin/$cc saves us if we are
# building natively in OS/400 PASE.
cat >&4 <<EOF
***
*** You either implicitly or explicitly specified an IBM C compiler,
*** but you do not seem to have one in /usr/bin, but you seem to have
*** the VAC installed in /usr/vac, but you do not have the /usr/vac/bin
*** in your PATH. I suggest adding that and retrying Configure.
***
EOF
exit 1
fi
;;
esac
fi
;;
esac
case "$ldlibpthname" in
'') ldlibpthname=LIBPATH ;;
esac
# This script UU/usethreads.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use threads.
cat > UU/usethreads.cbu <<'EOCBU'
case "$usethreads" in
$define|true|[yY]*)
d_drand48_r='undef'
d_endgrent_r='undef'
d_endpwent_r='undef'
d_getgrent_r='undef'
d_getpwent_r='undef'
d_random_r='undef'
d_setgrent_r='undef'
d_setpwent_r='undef'
d_srand48_r='undef'
d_strerror_r='undef'
ccflags="$ccflags -DNEED_PTHREAD_INIT"
case "$cc" in
*gcc*)
ccflags="-D_THREAD_SAFE $ccflags"
;;
cc_r) ;;
cc|xl[cC]_r)
echo >&4 "Switching cc to cc_r because of POSIX threads."
# xlc_r has been known to produce buggy code in AIX 4.3.2.
# (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
# --jhi@iki.fi
cc=cc_r
;;
'')
cc=cc_r
;;
*)
cat >&4 <<EOM
*** For pthreads you should use the AIX C compiler cc_r.
*** (now your compiler was set to '$cc')
*** Cannot continue, aborting.
EOM
exit 1
;;
esac
# c_rify libswanted.
set `echo X "$libswanted "| sed -e 's/ \([cC]\) / \1_r /g'`
shift
libswanted="$*"
# c_rify lddlflags.
set `echo X "$lddlflags "| sed -e 's/ \(-l[cC]\) / \1_r /g'`
shift
lddlflags="$*"
# Insert pthreads to libswanted, before any libc or libC.
set `echo X "$libswanted "| sed -e 's/ \([cC]_r\) / pthreads \1 /'`
shift
libswanted="$*"
# Insert pthreads to lddlflags, before any libc or libC.
set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]_r\) / -lpthreads \1 /'`
shift
lddlflags="$*"
;;
esac
EOCBU
# This script UU/uselargefiles.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use large files.
cat > UU/uselargefiles.cbu <<'EOCBU'
case "$uselargefiles" in
''|$define|true|[yY]*)
# Configure should take care of use64bitint and use64bitall being
# defined before uselargefiles.cbu is consulted.
if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
# Keep these at the left margin.
ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
else
# Keep these at the left margin.
ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
fi
if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
# Keep this at the left margin.
libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
else
# Keep this at the left margin.
libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
fi
case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
'') ;;
*) ccflags="$ccflags $ccflags_uselargefiles"
ldflags="$ldflags $ldflags_uselargefiles"
libswanted="$libswanted $libswanted_uselargefiles"
;;
esac
case "$gccversion" in
'') ;;
*) # Remove xlc-specific -qflags.
ccflags="`echo $ccflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
ldflags="`echo $ldflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
# Move xlc-specific -bflags.
ccflags="`echo $ccflags | sed -e 's@ -b@ -Wl,-b@g'`"
ldflags="`echo ' '$ldflags | sed -e 's@ -b@ -Wl,-b@g'`"
lddlflags="`echo ' '$lddlflags | sed -e 's@ -b@ -Wl,-b@g'`"
ld='gcc'
echo >&4 "(using ccflags $ccflags)"
echo >&4 "(using ldflags $ldflags)"
echo >&4 "(using lddlflags $lddlflags)"
;;
esac
;;
esac
EOCBU
if test $usenativedlopen = 'true' ; then
ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
case "$cc" in
*gcc*) ldflags="$ldflags -Wl,-brtl" ;;
*) ldflags="$ldflags -brtl" ;;
esac
else
# If the C++ libraries, libC and libC_r, are available we will
# prefer them over the vanilla libc, because the libC contain
# loadAndInit() and terminateAndUnload() which work correctly
# with C++ statics while libc load() and unload() do not. See
# ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
# usethreads.cbu, if needed.
if test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then
# Cify libswanted.
set `echo X "$libswanted "| sed -e 's/ c / C c /'`
shift
libswanted="$*"
# Cify lddlflags.
set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'`
shift
lddlflags="$*"
fi
fi
# EOF