# hints/aix.sh
# AIX 3.x.x hints thanks to Wayne Scott <wscott@ichips.intel.com>
# AIX 4.1 hints thanks to Christopher Chan-Nui <channui@austin.ibm.com>.
# AIX 4.1 pthreading by Christopher Chan-Nui <channui@austin.ibm.com> and
# Jarkko Hietaniemi <jhi@iki.fi>.
# AIX 4.3.x LP64 build by Steven Hirsch <hirschs@btv.ibm.com>
# Merged on Mon Feb 6 10:22:35 EST 1995 by
# Andy Dougherty <doughera@lafcol.lafayette.edu>
#
# Contact dfavor@corridor.com for any of the following:
#
# - AIX 43x and above support
# - gcc + threads support
# - socks support
#
# Apr 99 changes:
#
# - use nm in AIX 43x and above
# - gcc + threads now builds
# [(added support for socks) Jul 99 SOCKS support rewritten]
#
# 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.
#
# 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'
alignbytes=8
case "$usemymalloc" in
'') usemymalloc='n' ;;
esac
# Intuiting the existence of system calls under AIX is difficult,
# at best; the safest technique is to find them empirically.
# AIX 4.3.* and above default to using nm for symbol extraction
case "$osvers" in
3.*|4.1.*|4.2.*)
case "$usenm" in
'') usenm='undef'
esac
case "$usenativedlopen" in
'') usenativedlopen='false'
esac
;;
*)
case "$usenm" in
'') usenm='true'
esac
case "$usenativedlopen" in
'') usenativedlopen='true'
esac
;;
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 "$OBJECT_MODE" in
32)
cat >&4 <<EOF
You have OBJECT_MODE=32 set in the environment.
I take this as a hint you do not want to
build for a 64-bit address space. You will be
given the opportunity to change this later.
EOF
;;
64)
cat >&4 <<EOF
You have OBJECT_MODE=64 set in the environment.
This forces a full 64-bit build. If that is
not what you intended, please terminate this
program, unset it and restart.
EOF
;;
*) ;;
esac
# Trying to set this breaks the POSIX.c compilation
# Make setsockopt work correctly. See man page.
# ccflags='-D_BSD=44'
# uname -m output is too specific and not appropriate here
case "$archname" in
'') archname="$osname" ;;
esac
cc=${cc:-cc}
case "$osvers" in
3*) d_fchmod=undef
ccflags="$ccflags -D_ALL_SOURCE"
;;
*) # These hints at least work for 4.x, possibly other systems too.
ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
case "$cc" in
*gcc*) ;;
*) ccflags="$ccflags -qmaxmem=16384" ;;
esac
nm_opt='-B'
;;
esac
# These functions don't work like Perl expects them to.
d_setregid='undef'
d_setreuid='undef'
# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
#
# Tell perl which symbols to export for dynamic linking.
cccdlflags='none' # All AIX code is position independent
case "$cc" in
*gcc*) ccdlflags='-Xlinker' ;;
*) ccversion=`lslpp -L | grep 'C for AIX Compiler$' | awk '{print $2}'`
case "$ccversion" in
'') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$' | awk '{print $2}'`
;;
esac
case "$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 optimizer problems
*** when compiling perl.c.
***
*** Disabling optimization for that file but consider upgrading
*** your C compiler.
***
EOF
perl_cflags='optimize='
;;
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.
case "$ldlibpthname" in
'') ldlibpthname=LIBPATH ;;
esac
# The first 3 options would not be needed if dynamic libs. could be linked
# with the compiler instead of ld.
# -bI:$(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?
case "$osvers" in
3*)
lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
;;
*)
lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
;;
esac
# AIX 4.2 (using latest patchlevels on 20001130) has a broken bind
# library (getprotobyname and getprotobynumber are outversioned by
# the same calls in libc, at least for xlc version 3...
case "`oslevel`" in
4.2.1.*)
case "$ccversion" in # Don't know if needed for gcc
3.1.4.*) # libswanted "bind ... c ..." => "... c bind ..."
set `echo X "$libswanted "| sed -e 's/ bind\( .*\) \([cC]\) / \1 \2 bind /'`
shift
libswanted="$*"
;;
esac
;;
esac
# This script UU/usethreads.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use threads.
cat > UU/usethreads.cbu <<'EOCBU'
case "$usethreads" in
$define|true|[yY]*)
ccflags="$ccflags -DNEED_PTHREAD_INIT"
case "$cc" in
gcc) ;;
cc_r) ;;
cc|xl[cC]_r)
echo >&4 "Switching cc to cc_r because of POSIX threads."
# xlc_r has been known to produce buggy code in AIX 4.3.2.
# (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
# --jhi@iki.fi
cc=cc_r
;;
'')
cc=cc_r
;;
*)
cat >&4 <<EOM
*** For pthreads you should use the AIX C compiler cc_r.
*** (now your compiler was set to '$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
# _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
# insert(?) *something* to $ldflags so that later (in Configure) evaluating
# $ldflags causes a newline after the '-b64' (the result of the getconf).
# (nothing strange shows up in $ldflags even in hexdump;
# so it may be something (a bug) in the shell, instead?)
# Try it out: just uncomment the below line and rerun Configure:
# echo >&4 "AIX 4.3.1.0 $ldflags_uselargefiles mystery" ; exit 1
# Just don't ask me how AIX does it, I spent hours wondering.
# Therefore the line re-evaluating ldflags_uselargefiles: it seems to fix
# the whatever it was that AIX managed to break. --jhi
ldflags_uselargefiles="`echo $ldflags_uselargefiles`"
if test X"$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
'') ;;
*)
cat >&4 <<EOM
*** Warning: gcc in AIX might not work with the largefile support of Perl
*** (default since 5.6.0), this combination hasn't been tested.
*** I will try, though.
EOM
# Remove xlc-spefific -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 xld-spefific -bflags.
ccflags="`echo $ccflags | sed -e 's@ -b@ -Wl,-b@g'`"
ldflags="`echo ' '$ldflags | sed -e 's@ -b@ -Wl,-b@g'`"
ld='gcc'
lddlflags="`echo $lddlflags | sed -e 's@ -b@ -Wl,-b@g'`"
echo >&4 "(using ccflags $ccflags)"
echo >&4 "(using ldflags $ldflags)"
echo >&4 "(using lddlflags $lddlflags)"
;;
esac
;;
esac
EOCBU
# This script UU/use64bitint.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use 64 bit integers.
cat > UU/use64bitint.cbu <<'EOCBU'
case "$use64bitint" in
$define|true|[yY]*)
case "`oslevel`" in
3.*|4.[012].*)
cat >&4 <<EOM
AIX `oslevel` does not support 64-bit interfaces.
You should upgrade to at least AIX 4.3.
EOM
exit 1
;;
esac
# XXX In 64-bit AIX 5L (oslevel 5.1.0.0, ccversion 5.0.2.0)
# the Configure library symbol probe mysteriously finds all
# symbols but these two --jhi XXX
d_pipe='define'
d_times='define'
;;
esac
EOCBU
cat > UU/use64bitall.cbu <<'EOCBU'
# This script UU/use64bitall.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to be maximally 64-bitty.
case "$use64bitall" in
$define|true|[yY]*)
case "`oslevel`" in
3.*|4.[012].*)
cat >&4 <<EOM
AIX `oslevel` does not support 64-bit interfaces.
You should upgrade to at least AIX 4.3.
EOM
exit 1
;;
esac
echo " "
echo "Checking the CPU width of your hardware..." >&4
$cat >size.c <<EOCP
#include <stdio.h>
#include <sys/systemcfg.h>
int main (void)
{
printf("%d\n",_system_configuration.width);
return(0);
}
EOCP
set size
if eval $compile_ok; then
qacpuwidth=`./size`
echo "You are running on $qacpuwidth bit hardware."
else
dflt="32"
echo " "
echo "(I can't seem to compile the test program. Guessing...)"
rp="What is the width of your CPU (in bits)?"
. ./myread
qacpuwidth="$ans"
fi
$rm -f size.c size
case "$qacpuwidth" in
32*)
cat >&4 <<EOM
Bzzzt! At present, you can only perform a
full 64-bit build on a 64-bit machine.
EOM
exit 1
;;
esac
qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
# See jhi's comments above regarding this re-eval. I've
# seen similar weirdness in the form of:
#
# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
#
# error messages from 'cc -E' invocation. Again, the offending
# string is simply not detectable by any means. Since it doesn't
# do any harm, I didn't pursue it. -- sh
qaldflags="`echo $qaldflags`"
qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
# -q32 and -b32 may have been set by uselargefiles or user.
# Remove them.
ccflags="`echo $ccflags | sed -e 's@-q32@@'`"
ldflags="`echo $ldflags | sed -e 's@-b32@@'`"
# Tell archiver to use large format. Unless we remove 'ar'
# from 'trylist', the Configure script will just reset it to 'ar'
# immediately prior to writing config.sh. This took me hours
# to figure out.
trylist="`echo $trylist | sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
ar="ar -X64"
nm_opt="-X64 $nm_opt"
# Note: Placing the 'qacflags' variable into the 'ldflags' string
# is NOT a typo. ldflags is passed to the C compiler for final
# linking, and it wants -q64 (-b64 is for ld only!).
case "$qacflags$qaldflags$qalibs" in
'');;
*) ccflags="$ccflags $qacflags"
ldflags="$ldflags $qacflags"
lddlflags="$qaldflags $lddlflags"
libswanted="$libswanted $qalibs"
;;
esac
case "$ccflags" in
*-DUSE_64_BIT_ALL*) ;;
*) ccflags="$ccflags -DUSE_64_BIT_ALL";;
esac
case "$archname64" in
''|64*) archname64=64all ;;
esac
longsize="8"
# Don't try backwards compatibility
bincompat="$undef"
d_bincompat5005="$undef"
qacflags=''
qaldflags=''
qalibs=''
qacpuwidth=''
;;
esac
EOCBU
cat > UU/uselongdouble.cbu <<'EOCBU'
# This script UU/uselongdouble.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use long doubles.
case "$uselongdouble" in
$define|true|[yY]*)
# -qlongdouble for cc taken out on 20010522 cause it
# causes more trouble than it does any good --hmb
d_Gconvert='sprintf((b),"%.*llg",((int)(n)),(x))'
;;
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