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# 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>.
# 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.*)
usenm='undef'
;;
*)
usenm='true'
;;
esac
so="a"
dlext="o"
# 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
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="$ccflags -qmaxmem=16384" ;;
esac
nm_opt='-B'
;;
esac
# These functions don't work like Perl expects them to.
d_setregid='undef'
d_setreuid='undef'
# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
#
# Tell perl which symbols to export for dynamic linking.
case "$cc" in
*gcc*) ccdlflags='-Xlinker' ;;
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?
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:$(BASEEXT).exp -b noentry -lc"
;;
esac
# This script UU/usethreads.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use threads.
cat > UU/usethreads.cbu <<'EOCBU'
case "$usethreads" in
$define|true|[yY]*)
ccflags="$ccflags -DNEED_PTHREAD_INIT"
case "$cc" in
gcc) ;;
cc_r) ;;
cc|xlc_r)
echo >&4 "Switching cc to cc_r because of POSIX threads."
# xlc_r has been known to produce buggy code in AIX 4.3.2.
# (e.g. pragma/overload core dumps)
# --jhi@iki.fi
cc=cc_r
if test ! -e /bin/cc_r; then
cat >&4 <<EOM
For pthreads you should use the AIX C compiler cc_r.
But I cannot find it in /bin.
Cannot continue, aborting.
EOM
fi
;;
'')
cc=cc_r
;;
*)
cat >&4 <<EOM
For pthreads you should use the AIX C compiler cc_r.
(now your compiler was set to '$cc')
Cannot continue, aborting.
EOM
exit 1
;;
esac
# Add the POSIX threads library and the re-entrant libc to lddflags.
set `echo X "$lddlflags"| sed -e 's/ -lc$/ -lpthreads -lc_r/'`
shift
lddlflags="$*"
# Add the POSIX threads library and the re-entrant libc to libswanted.
# Make sure the c_r library is before the c library or
# make will fail.
set `echo X "$libswanted "| sed -e 's/ c / pthreads c_r /'`
shift
libswanted="$*"
;;
esac
EOCBU
# This script UU/use64bits.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use 64 bits.
cat > UU/use64bits.cbu <<'EOCBU'
case "$use64bits" in
$define|true|[yY]*)
case "`uname -r`" in
3.*|4.[012].*)
cat >&4 <<EOM
AIX `uname -r` does not support 64-bit interfaces.
You should upgrade to at least AIX 4.3.
EOM
exit 1
;;
esac
ccflags="$ccflags `getconf XBS5_LPBIG_OFFBIG_CFLAGS`"
ccflags="$ccflags -DUSE_LONG_LONG"
ldflags="$ldflags `getconf XBS5_LPBIG_OFFBIG_LDFLAGS`"
libswanted="$libswanted `getconf XBS5_LPBIG_OFFBIG_LIBS`"
# When a 64-bit cc becomes available $archname64
# may need setting so that $archname gets it attached.
;;
esac
EOCBU
# EOF
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