# hints/aix.sh
# AIX 3 and AIX 4 are split off to aix_3.sh and aix_4.sh
# early Feb 2004 by H.Merijn Brand
# please read comments in there for historic questions.
# many now stripped here
# Contact dfavor@corridor.com for any of the following:
#
# - AIX 43x and above support
# - gcc + threads support
# - socks support
#
# 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 "$usemymalloc" in
'') usemymalloc='n' ;;
esac
# malloc wrap works, but not in vac-5, see later
case "$usemallocwrap" in
'') usemallocwrap='define' ;;
esac
# Intuiting the existence of system calls under AIX is difficult,
# at best; the safest technique is to find them empirically.
case "$usenativedlopen" in
'') usenativedlopen='true' ;;
esac
so="a"
# AIX itself uses .o (libc.o) but we prefer compatibility
# with the rest of the world and with rest of the scripting
# languages (Tcl, Python) and related systems (SWIG).
# Stephanie Beals <bealzy@us.ibm.com>
dlext="so"
# Take possible hint from the environment. If 32-bit is set in the
# environment, we can override it later. If set for 64, the
# 'sizeof' test sees a native 64-bit architecture and never looks back.
case "$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
s=`lslpp -lc bos.adt.libm >/dev/null`
if [ $? != 0 ]; then
echo "You cannot build perl without the bos.adt.libm package installed" >&4
exit
fi
# uname -m output is too specific and not appropriate here
case "$archname" in
'') archname="$osname" ;;
esac
cc=${cc:-cc}
ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
case "$cc" in
*gcc*|*g++*) ;;
*) ccflags="$ccflags -qmaxmem=-1 -qnoansialias -qlanglvl=extc99" ;;
esac
nm_opt='-B'
# These functions don't work like Perl expects them to.
d_setregid='undef'
d_setreuid='undef'
# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
#
# Tell perl which symbols to export for dynamic linking.
cccdlflags='none' # All AIX code is position independent
cc_type=xlc # do not export to config.sh
case "$cc" in
*gcc*|*g++*)
cc_type=gcc
ccdlflags='-Xlinker'
if [ "X$gccversion" = "X" ]; then
# Done too late in Configure if hinted
gccversion=`$cc -dumpversion`
fi
;;
*) ccversion=`lslpp -ql -Ou vac.C | grep -v '^Path' | 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 $2}'`
# Redbooks state AIX-5 only supports vac-5.0.2.0 and up
case "$ccversion" in
5*) usemallocwrap='n' ;; # panic in miniperl
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?
if test $usenativedlopen = 'true' ; then
lddlflags="$lddlflags -bhalt:4 -G -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc -lm"
else
lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
fi
case "$use64bitall" in
$define|true|[yY]*) use64bitint="$define" ;;
esac
case "$usemorebits" in
$define|true|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
esac
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 "$cc" in
*gcc*|*g++*) ;;
cc*|xlc*) # cc should've been set by line 116 or so if empty.
if test ! -x /usr/bin/$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
$define|true|[yY]*)
d_drand48_r='undef'
d_endgrent_r='undef'
d_endpwent_r='undef'
d_getgrent_r='undef'
d_getpwent_r='undef'
d_random_r='undef'
d_setgrent_r='undef'
d_setpwent_r='undef'
d_srand48_r='undef'
d_srandom_r='undef'
d_strerror_r='undef'
ccflags="$ccflags -DNEED_PTHREAD_INIT"
case "$cc" in
*gcc*|*g++*)
ccflags="-D_THREAD_SAFE $ccflags"
;;
cc_r)
;;
xlc_r)
;;
# we do not need the C++ compiler
xlC_r)
cc=xlc_r
;;
'')
cc=cc_r
;;
*)
esac
# Insert pthreads to libswanted, before any libc or libC.
set `echo X "$libswanted "| sed -e 's/ \([cC]\) / pthreads \1 /'`
shift
libswanted="$*"
# Insert pthreads to lddlflags, before any libc or libC.
set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]\) / -lpthreads \1 /'`
shift
lddlflags="$*"
;;
*)
case "$cc" in
xlc)
;;
# we do not need the C++ compiler
xlC)
cc=xlc
;;
*)
esac
;;
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 $libswanted_uselargefiles"
;;
esac
# -bmaxdata:0x80000000
# - This increases the size of heap memory available to perl.
# Default is 256 MB, which sounds large but caused a software
# vendor problems. So this sets heap to 2 GB maximum. Anything
# higher and you'd want to consider 64 bit perl.
# - NOTE however, that setting this in 64bit mode will limit your
# amount of available memory to 2GB, so we set this only in
# 32bit mode to avoid future problems a la "should be enough
# for everyone" ...
#
case "$use64bitall" in
$define|true|[yY]*)
:
;;
*)
ldflags="$ldflags -bmaxdata:0x80000000"
;;
esac
case "$gccversion" in
'') # Not using gcc.
# Due to calling $cc without $cflags when linking some
# binaries we need to hardwire $cc to the right mode.
# The correct fix would be to have Makefile.SH not set
# CLDFLAGS from $ldflags ...
case "$use64bitall" in
$define|true|[yY]*) cc="$cc -q64" ;;
*) cc="$cc -q32" ;;
esac
# Some 32-bit getconfs will set ccflags to include -qlonglong
# but that's no longer needed with an explicit -qextc99.
ccflags="`echo $ccflags | sed -e 's@ -qlonglong@@'`"
;;
*) # 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 ' '$lddlflags | sed -e 's@ -b@ -Wl,-b@g'`"
lddlflags="`echo ' '$lddlflags | sed -e 's@ -G @ -Wl,-G @g'`"
# Due to calling $cc without $cflags when linking some
# binaries we need to hardwire $cc to the right mode.
case "$use64bitall" in
$define|true|[yY]*)
cc="$cc -maix64"
ld="$cc"
;;
*)
cc="$cc -maix32"
ld="$cc"
;;
esac
echo >&4 "(using ccflags $ccflags)"
echo >&4 "(using ldflags $ldflags)"
echo >&4 "(using lddlflags $lddlflags)"
;;
esac
;;
esac
EOCBU
cat > UU/use64bitall.cbu <<'EOCBU'
# This script UU/use64bitall.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to be maximally 64-bitty.
case "$use64bitall" in
$define|true|[yY]*)
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 $ldflags | sed -e 's@-b32@@'`"
case "$cc" in
*gcc*|*g++*)
ccflags="`echo $ccflags | sed -e 's@-q64@-maix64@'`"
ccflags_uselargefiles="`echo $ccflags_uselargefiles | sed -e 's@-q64@-maix64@'`"
qacflags="`echo $qacflags | sed -e 's@-q64@-maix64@'`"
;;
esac
# 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 $nm_opt"
case "$qacflags$qaldflags$qalibs" in
'') ;;
*) ccflags="$ccflags $qacflags"
ldflags="$ldflags"
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"
qacflags=''
qaldflags=''
qalibs=''
qacpuwidth=''
;;
esac
EOCBU
if test $usenativedlopen = 'true' ; then
ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
# -brtl Enables a binary to use run time linking
# -bdynamic When used with -brtl, tells linker to search for
# ".so"-suffix libraries as well as ".a" suffix
# libraries. AIX allows both .so and .a libraries to
# contain dynamic shared objects.
case "$cc" in
*gcc*|*g++*) ldflags="$ldflags -Wl,-brtl -Wl,-bdynamic" ;;
*) ldflags="$ldflags -brtl -bdynamic" ;;
esac
elif test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then
# 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.
# 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
case "$PASE" in
define)
case "$prefix" in
'') prefix=/QOpenSys/perl ;;
esac
cat >&4 <<EOF
***
*** You seem to be compiling in AIX for the OS/400 PASE environment.
*** I'm not going to use the AIX bind, nsl, and possible util libraries, then.
*** I'm also not going to install perl as /usr/bin/perl.
*** Perl will be installed under $prefix.
*** For instructions how to install this build from AIX to PASE,
*** see the file README.os400. Accept the "aix" for the question
*** about "Operating system name".
***
EOF
set `echo " $libswanted " | sed -e 's@ bind @ @' -e 's@ nsl @ @' -e 's@ util @ @'`
shift
libswanted="$*"
installusrbinperl="$undef"
# V5R1 doesn't have this (V5R2 does), without knowing
# which one we have it's safer to be pessimistic.
# Cwd will work fine even without fchdir(), but if
# V5R1 tries to use code compiled assuming fchdir(),
# lots of grief will issue forth from Cwd.
case "$d_fchdir" in
'') d_fchdir="$undef" ;;
esac
;;
esac
# remove libbsd.a from wanted libraries
libswanted=`echo " $libswanted " | sed -e 's/ bsd / /'`
libswanted=`echo " $libswanted " | sed -e 's/ BSD / /'`
d_flock='undef'
# remove libgdbm from wanted libraries
# The libgdbm < 1.8.3-5 from the AIX Toolbox is not working
# because two wrong .h are present
if [ -f "/opt/freeware/include/gdbm/dbm.h" ] ||
[ -f "/opt/freeware/include/gdbm/ndbm.h" ]; then
echo "GDBM support disabled because your GDBM package contains extraneous headers - see README.aix."
libswanted=`echo " $libswanted " | sed -e 's/ gdbm / /'`
i_gdbm='undef'
i_gdbmndbm='undef'
fi
# Some releases (and patch levels) of AIX cannot have both
# long doubles and infinity (infinity plus one equals ... NaNQ!)
#
# This deficiency, and others, is apparently a well-documented feature
# of AIX 128-bit long doubles:
#
# http://www-01.ibm.com/support/knowledgecenter/ssw_aix_61/com.ibm.aix.genprogc/128bit_long_double_floating-point_datatype.htm
#
# The URL seems to be fragile, it has moved around over the years,
# but searching AIX docs at ibm.com for "128-bit long double
# floating-point data type" should surface the latest info.
#
# Some salient points:
#
# <quote>
# * The 128-bit implementation differs from the IEEE standard for long double
# in the following ways:
# * Supports only round-to-nearest mode. If the application changes
# the rounding mode, results are undefined.
# * Does not fully support the IEEE special numbers NaN and INF.
# * Does not support IEEE status flags for overflow, underflow,
# and other conditions. These flags have no meaning for the 128-bit
# long double inplementation.
# * The 128-bit long double data type does not support the following math
# APIs: atanhl, cbrtl, copysignl, exp2l, expm1l, fdiml, fmal, fmaxl,
# fminl, hypotl, ilogbl, llrintl, llroundl, log1pl, log2l, logbl,
# lrintl, lroundl, nanl, nearbyintl, nextafterl, nexttoward,
# nexttowardf, nexttowardl, remainderl, remquol, rintl, roundl,
# scalblnl, scalbnl, tgammal, and truncl.
# * The representation of 128-bit long double numbers means that the
# following macros required by standard C in the values.h file do not
# have clear meaning:
# * Number of bits in the mantissa (LDBL_MANT_DIG)
# * Epsilon (LBDL_EPSILON)
# * Maximum representable finite value (LDBL_MAX)
# </quote>
#
# The missing math functions affect the POSIX extension math interfaces.
case "$uselongdouble" in
$define)
echo "Checking if your infinity is working with long doubles..." >&4
cat > inf$$.c <<EOF
#include <math.h>
#include <stdio.h>
int main() {
long double inf = INFINITY;
long double one = 1.0L;
printf("%Lg\n", inf + one);
}
EOF
$cc -qlongdouble -o inf$$ inf$$.c -lm
case `./inf$$` in
INF) echo "Your infinity is working correctly with long doubles." >&4 ;;
*) # NaNQ (or anything else than INF)
echo " "
echo "Your infinity is broken, I suggest disabling long doubles." >&4
rp="Disable long doubles?"
dflt="y"
. UU/myread
case "$ans" in
[Yy]*)
echo "Okay, disabling long doubles." >&4
uselongdouble="$undef"
ccflags=`echo " $ccflags " | sed -e 's/ -qlongdouble / /'`
libswanted=`echo " $libswanted " | sed -e 's/ c128/ /'`
lddlflags=`echo " $lddlflags " | sed -e 's/ -lc128 / /'`
;;
*)
echo "Okay, keeping long doubles enabled." >&4
;;
esac
;;
esac
rm -f inf$$.c inf$$
;;
esac
# Some releases (and patch levels) of AIX have a broken powl().
pp_cflags=''
case "$uselongdouble" in
define)
echo "Checking if your powl() is broken..." >&4
cat > powl$$.c <<EOF
#include <math.h>
#include <stdio.h>
int main() {
printf("%Lg\n", powl(-3.0L, 2.0L));
}
EOF
case "$gccversion" in
'') $cc -qlongdouble -o powl$$ powl$$.c -lm ;;
*) $cc -o powl$$ powl$$.c -lm ;;
esac
case `./powl$$` in
9) echo "Your powl() is working correctly." >&4 ;;
*)
echo "Your powl() is broken, will use a workaround." >&4
pp_cflags='ccflags="$ccflags -DHAS_AIX_POWL_NEG_BASE_BUG"'
;;
esac
rm -f powl$$.c powl$$
;;
esac
# Some releases of AIX cc/xlc a broken fmodl(), but -q64 seems to help.
case "$gccversion" in
'') case "$uselongdouble" in
define)
case "$ccflags" in
*-q64*) ;;
*) echo "Checking if your fmodl() is broken..." >&4
cat > fmodl$$.c <<EOF
#include <math.h>
#include <stdio.h>
int main() {
printf("%ld\n", (long)fmodl(powl(2, 31), (long double)4294967295));
}
EOF
$cc -qlongdouble -o fmodl$$ fmodl$$.c -lm
case `./fmodl$$` in
2147483648) echo "Your fmodl() is working correctly." >&4 ;;
*) echo "Your fmodl() is broken, will try with -q64..." >&4
$cc -q64 -qlongdouble -o fmodl$$ fmodl$$.c -lm
case `./fmodl$$` in
2147483648)
echo "The -q64 did the trick, will use it." >& 4
ccflags="`echo $ccflags | sed -e 's@-q32@@g'`"
ldflags="`echo $ldflags | sed -e 's@-q32@@g'`"
ccflags="$ccflags -q64"
ldflags="$ldflags -q64"
;;
*) echo "Not even the -q64 worked. I'm disabling long doubles." >&4
echo "And you should have stern talk with your IBM rep." >&4
uselongdouble="$undef"
ccflags=`echo " $ccflags " | sed -e 's/ -qlongdouble / /'`
libswanted=`echo " $libswanted " | sed -e 's/ c128/ /'`
lddlflags=`echo " $lddlflags " | sed -e 's/ -lc128 / /'`
;;
esac # second fmodl$$
;;
esac # first fmodl$$
;;
esac # Checking if ...
;;
esac # uselongdouble
rm -f fmodl$$.c fmodl$$
;;
esac # not gcc
# EOF