[perl5.git] / hints / aix.sh

# 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*) ;;
    *) ccflags="$ccflags -qmaxmem=-1 -qnoansialias" ;;
    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 "$cc" in
    *gcc*)
	cc_type=gcc
	ccdlflags='-Xlinker'
	if [ "X$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*) ;;

    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*) 
	      ccflags="-D_THREAD_SAFE $ccflags" 
	      ;;
	    cc_r) 
	      ;;
	    xlc_r) 
	      # for -qlonglong
	      ccflags="$ccflags -qlanglvl=extended"
	      ;;
	    # we do not need the C++ compiler
	    xlC_r) 
	      # for -qlonglong
	      ccflags="$ccflags -qlanglvl=extended"
	      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) 
	      # for -qlonglong
	      ccflags="$ccflags -qlanglvl=extended"
	      ;;
	    # we do not need the C++ compiler
	    xlC) 
	      # for -qlonglong
	      ccflags="$ccflags -qlanglvl=extended"
	      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
		;;
	    *)  # 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*)
		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 "$cc" in
	*gcc*) ldflags="$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 " $libswanted " | sed -e 's/ gdbm / /'`
    i_gdbm='undef'
    i_gdbmndbm='undef'
fi
# EOF
Commit	Line	Data
1aef975c	1	# hints/aix.sh
1aef975c	2
2463cec9 MB	3	# AIX 3 and AIX 4 are split off to aix_3.sh and aix_4.sh
	4	# early Feb 2004 by H.Merijn Brand
	5	# please read comments in there for historic questions.
	6	# many now stripped here
	7
bbc711f9 DF	8	# Contact dfavor@corridor.com for any of the following:
	9	#
	10	# - AIX 43x and above support
	11	# - gcc + threads support
	12	# - socks support
	13	#
bbc711f9 DF	14	# Notes:
	15	#
	16	# - shared libperl support is tricky. if ever libperl.a ends up
	17	# in /usr/local/lib/* it can override any subsequent builds of
	18	# that same perl release. to make sure you know where the shared
	19	# libperl.a is coming from do a 'dump -Hv perl' and check all the
	20	# library search paths in the loader header.
	21	#
	22	# it would be nice to warn the user if a libperl.a exists that is
	23	# going to override the current build, but that would be complex.
	24	#
	25	# better yet, a solid fix for this situation should be developed.
	26	#
1aef975c AD	27
	28	# Configure finds setrgid and setruid, but they're useless. The man
	29	# pages state:
	30	# setrgid: The EPERM error code is always returned.
	31	# setruid: The EPERM error code is always returned. Processes cannot
4e774c84	32	# reset only their real user IDs.
a0d0e21e LW	33	d_setrgid='undef'
a0d0e21e LW	34	d_setruid='undef'
1aef975c	35
5f3774a9	36	alignbytes=8
a5f75d66	37
86959918	38	case "$usemymalloc" in
2463cec9 MB	39	'') usemymalloc='n' ;;
2463cec9 MB	40	esac
bbc711f9	41
88567e60	42	# malloc wrap works, but not in vac-5, see later
da0b61dd	43	case "$usemallocwrap" in
88567e60 MB	44	'') usemallocwrap='define' ;;
88567e60 MB	45	esac
da0b61dd	46
bbc711f9 DF	47	# Intuiting the existence of system calls under AIX is difficult,
	48	# at best; the safest technique is to find them empirically.
	49
2463cec9 MB	50	case "$usenativedlopen" in
	51	'') usenativedlopen='true' ;;
	52	esac
cc628cc3	53
3c321fdc	54	so="a"
0d9ec2f4 JH	55	# AIX itself uses .o (libc.o) but we prefer compatibility
	56	# with the rest of the world and with rest of the scripting
	57	# languages (Tcl, Python) and related systems (SWIG).
	58	# Stephanie Beals <bealzy@us.ibm.com>
	59	dlext="so"
3c321fdc	60
19e194ad JH	61	# Take possible hint from the environment. If 32-bit is set in the
	62	# environment, we can override it later. If set for 64, the
	63	# 'sizeof' test sees a native 64-bit architecture and never looks back.
	64	case "$OBJECT_MODE" in
2463cec9	65	32) cat >&4 <<EOF
19e194ad	66
2463cec9	67	You have OBJECT_MODE=32 set in the environment.
19e194ad JH	68	I take this as a hint you do not want to
	69	build for a 64-bit address space. You will be
	70	given the opportunity to change this later.
	71	EOF
2463cec9 MB	72	;;
2463cec9 MB	73	64) cat >&4 <<EOF
19e194ad	74
2463cec9	75	You have OBJECT_MODE=64 set in the environment.
19e194ad JH	76	This forces a full 64-bit build. If that is
	77	not what you intended, please terminate this
	78	program, unset it and restart.
	79	EOF
2463cec9 MB	80	;;
2463cec9 MB	81	esac
1aef975c	82
d909c5cb MB	83	s=`lslpp -lc bos.adt.libm >/dev/null`
	84	if [ $? != 0 ]; then
	85	echo "You cannot build perl without the bos.adt.libm package installed" >&4
	86	exit
	87	fi
	88
1aef975c AD	89	# uname -m output is too specific and not appropriate here
1aef975c AD	90	case "$archname" in
2463cec9 MB	91	'') archname="$osname" ;;
2463cec9 MB	92	esac
1aef975c	93
bd9b35c9 JH	94	cc=${cc:-cc}
bd9b35c9 JH	95
1c00c3fe MB	96	ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
	97	case "$cc" in
	98	gcc) ;;
	99	*) ccflags="$ccflags -qmaxmem=-1 -qnoansialias" ;;
80589958	100	esac
1c00c3fe	101	nm_opt='-B'
1aef975c	102
bbc711f9 DF	103	# These functions don't work like Perl expects them to.
	104	d_setregid='undef'
	105	d_setreuid='undef'
	106
1aef975c	107	# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
a0d0e21e LW	108	#
a0d0e21e LW	109	# Tell perl which symbols to export for dynamic linking.
411de0ab MB	110	cccdlflags='none' # All AIX code is position independent
411de0ab MB	111	cc_type=xlc # do not export to config.sh
4633a7c4	112	case "$cc" in
2463cec9 MB	113	gcc)
	114	cc_type=gcc
	115	ccdlflags='-Xlinker'
	116	if [ "X$gccversion" = "X" ]; then
	117	# Done too late in Configure if hinted
0baa0948	118	gccversion=`$cc -dumpversion`
2463cec9	119	fi
2973cfbe	120	;;
2463cec9	121
3c2f5eaa	122	*) ccversion=`lslpp -ql -Ou vac.C \| grep -v '^Path' \| head -1 \| awk '{print $1,$2}'`
2463cec9 MB	123	case "$ccversion" in
	124	'') ccversion=`lslpp -L \| grep 'IBM C and C++ Compilers LUM$'` ;;
	125
	126	......*) # Ahhrgg, more than one C compiler installed
	127	first_cc_path=`which ${cc:-cc}`
	128	case "$first_cc_path" in
	129	vac)
	130	cc_type=vac ;;
	131
	132	/usr/bin/cc) # Check the symlink
	133	if [ -h $first_cc_path ] ; then
	134	ls -l $first_cc_path > reflect
	135	if grep -i vac reflect >/dev/null 2>&1 ; then
	136	cc_type=vac
	137	fi
	138	rm -f reflect
	139	fi
	140	;;
	141	esac
	142	ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| grep -i $cc_type \| head -1`
	143	;;
	144
	145	vac...)
	146	cc_type=vac
	147	;;
	148	esac
	149
	150	ccversion=`echo "$ccversion" \| awk '{print $2}'`
	151	# Redbooks state AIX-5 only supports vac-5.0.2.0 and up
88567e60 MB	152	case "$ccversion" in
	153	5*) usemallocwrap='n' ;; # panic in miniperl
	154	esac
6b356c8e	155	;;
2463cec9 MB	156	esac
2463cec9 MB	157
5f9d9a17 ME	158	# the required -bE:$installarchlib/CORE/perl.exp is added by
5f9d9a17 ME	159	# libperl.U (Configure) later.
a0d0e21e	160
411de0ab MB	161	# The first 3 options would not be needed if dynamic libs. could be linked
	162	# with the compiler instead of ld.
	163	# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
	164	# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
	165	# symbol: boot_$(EXP) can it be auto-generated?
142c1590	166	if test $usenativedlopen = 'true' ; then
79c530cb	167	lddlflags="$lddlflags -bhalt:4 -G -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc -lm"
142c1590 MB	168	else
	169	lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
	170	fi
411de0ab	171
d002699e MB	172	case "$use64bitall" in
	173	$define\|true\|[yY]*) use64bitint="$define" ;;
	174	esac
	175
	176	case "$usemorebits" in
	177	$define\|true\|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
	178	esac
	179
	180	case $cc_type in
	181	vac\|xlc)
	182	case "$uselongdouble" in
	183	$define\|true\|[yY]*)
	184	ccflags="$ccflags -qlongdouble"
	185	libswanted="c128 $libswanted"
411de0ab	186	lddlflags=`echo "$lddlflags " \| sed -e 's/ -lc / -lc128 -lc /'`
d002699e MB	187	;;
d002699e MB	188	esac
2463cec9	189	;;
d002699e MB	190	esac
d002699e MB	191
444379fb	192	case "$cc" in
2463cec9 MB	193	gcc) ;;
	194
	195	cc\|xlc) # cc should've been set by line 116 or so if empty.
444379fb	196	if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
2463cec9	197	case ":$PATH:" in
444379fb	198	:/usr/vac/bin:) ;;
2463cec9	199	*) if test ! -x /QOpenSys/usr/bin/$cc; then
61074b56 JH	200	# The /QOpenSys/usr/bin/$cc saves us if we are
61074b56 JH	201	# building natively in OS/400 PASE.
e6604a4d	202	cat >&4 <<EOF
444379fb JH	203
	204	***
	205	*** You either implicitly or explicitly specified an IBM C compiler,
	206	*** but you do not seem to have one in /usr/bin, but you seem to have
	207	*** the VAC installed in /usr/vac, but you do not have the /usr/vac/bin
	208	*** in your PATH. I suggest adding that and retrying Configure.
	209	***
	210	EOF
61074b56	211	exit 1
2463cec9 MB	212	fi
2463cec9 MB	213	;;
444379fb	214	esac
2463cec9	215	fi
444379fb	216	;;
2463cec9	217	esac
444379fb	218
5cf1d1f1	219	case "$ldlibpthname" in
2463cec9	220	'') ldlibpthname=LIBPATH ;;
3427abbf	221	esac
52e1cb5e	222
2463cec9	223	# This script UU/usethreads.cbu will get 'called-back' by Configure
104d25b7 JH	224	# after it has prompted the user for whether to use threads.
	225	cat > UU/usethreads.cbu <<'EOCBU'
	226	case "$usethreads" in
2463cec9 MB	227	$define\|true\|[yY]*)
	228	d_drand48_r='undef'
	229	d_endgrent_r='undef'
	230	d_endpwent_r='undef'
	231	d_getgrent_r='undef'
	232	d_getpwent_r='undef'
	233	d_random_r='undef'
	234	d_setgrent_r='undef'
	235	d_setpwent_r='undef'
	236	d_srand48_r='undef'
4538cc61	237	d_srandom_r='undef'
2463cec9 MB	238	d_strerror_r='undef'
2463cec9 MB	239
4e774c84 SB	240	ccflags="$ccflags -DNEED_PTHREAD_INIT"
4e774c84 SB	241	case "$cc" in
68224244 RT	242	gcc)
	243	ccflags="-D_THREAD_SAFE $ccflags"
	244	;;
	245	cc_r)
	246	;;
	247	xlc_r)
	248	# for -qlonglong
	249	ccflags="$ccflags -qlanglvl=extended"
	250	;;
	251	# we do not need the C++ compiler
	252	xlC_r)
	253	# for -qlonglong
	254	ccflags="$ccflags -qlanglvl=extended"
	255	cc=xlc_r
	256	;;
	257	'')
	258	cc=cc_r
	259	;;
3e50adc2	260	*)
3e50adc2	261	esac
c88be79f JH	262
c88be79f JH	263	# Insert pthreads to libswanted, before any libc or libC.
15173baf	264	set `echo X "$libswanted "\| sed -e 's/ \([cC]\) / pthreads \1 /'`
c88be79f JH	265	shift
	266	libswanted="$*"
	267	# Insert pthreads to lddlflags, before any libc or libC.
15173baf	268	set `echo X "$lddlflags " \| sed -e 's/ \(-l[cC]\) / -lpthreads \1 /'`
c88be79f JH	269	shift
c88be79f JH	270	lddlflags="$*"
104d25b7	271	;;
68224244 RT	272	*)
	273	case "$cc" in
	274	xlc)
	275	# for -qlonglong
	276	ccflags="$ccflags -qlanglvl=extended"
	277	;;
	278	# we do not need the C++ compiler
	279	xlC)
	280	# for -qlonglong
	281	ccflags="$ccflags -qlanglvl=extended"
	282	cc=xlc
	283	;;
	284	*)
	285	esac
	286	;;
104d25b7 JH	287	esac
104d25b7 JH	288	EOCBU
fa9667c9	289
2463cec9	290	# This script UU/uselargefiles.cbu will get 'called-back' by Configure
bd9b35c9	291	# after it has prompted the user for whether to use large files.
8a647129	292	cat > UU/uselargefiles.cbu <<'EOCBU'
bd9b35c9	293	case "$uselargefiles" in
2463cec9 MB	294	''\|$define\|true\|[yY]*)
	295	# Configure should take care of use64bitint and use64bitall being
	296	# defined before uselargefiles.cbu is consulted.
	297	if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
21c7e20c JH	298	# Keep these at the left margin.
	299	ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
	300	ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
2463cec9	301	else
9422c00b	302	# Keep these at the left margin.
45c9e83b JH	303	ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
45c9e83b JH	304	ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
2463cec9 MB	305	fi
2463cec9 MB	306	if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
21c7e20c	307	# Keep this at the left margin.
af638b87	308	libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
2463cec9	309	else
9422c00b	310	# Keep this at the left margin.
af638b87	311	libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
2463cec9 MB	312	fi
2463cec9 MB	313
45c9e83b	314	case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
2463cec9 MB	315	'') ;;
	316	*) ccflags="$ccflags $ccflags_uselargefiles"
	317	ldflags="$ldflags $ldflags_uselargefiles"
	318	libswanted="$libswanted $libswanted_uselargefiles"
	319	;;
	320	esac
6b8eaf93	321
be7cbdf3 NE	322	# -bmaxdata:0x80000000
	323	# - This increases the size of heap memory available to perl.
	324	# Default is 256 MB, which sounds large but caused a software
	325	# vendor problems. So this sets heap to 2 GB maximum. Anything
	326	# higher and you'd want to consider 64 bit perl.
	327	# - NOTE however, that setting this in 64bit mode will limit your
	328	# amount of available memory to 2GB, so we set this only in
	329	# 32bit mode to avoid future problems a la "should be enough
	330	# for everyone" ...
	331	#
	332	case "$use64bitall" in
	333	$define\|true\|[yY]*)
	334	:
	335	;;
	336	*)
	337	ldflags="$ldflags -bmaxdata:0x80000000"
	338	;;
	339	esac
	340
2463cec9	341	case "$gccversion" in
be7cbdf3 NE	342	'') # Not using gcc.
	343	# Due to calling $cc without $cflags when linking some
	344	# binaries we need to hardwire $cc to the right mode.
	345	# The correct fix would be to have Makefile.SH not set
	346	# CLDFLAGS from $ldflags ...
	347	case "$use64bitall" in
	348	$define\|true\|[yY]*) cc="$cc -q64" ;;
	349	*) cc="$cc -q32" ;;
	350	esac
	351	;;
2463cec9 MB	352	*) # Remove xlc-specific -qflags.
	353	ccflags="`echo $ccflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
	354	ldflags="`echo $ldflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
	355	# Move xlc-specific -bflags.
	356	ccflags="`echo $ccflags \| sed -e 's@ -b@ -Wl,-b@g'`"
	357	ldflags="`echo ' '$ldflags \| sed -e 's@ -b@ -Wl,-b@g'`"
	358	lddlflags="`echo ' '$lddlflags \| sed -e 's@ -b@ -Wl,-b@g'`"
ad5c63c6	359	lddlflags="`echo ' '$lddlflags \| sed -e 's@ -G @ -Wl,-G @g'`"
be7cbdf3 NE	360
	361	# Due to calling $cc without $cflags when linking some
	362	# binaries we need to hardwire $cc to the right mode.
0c0f8223	363	case "$use64bitall" in
be7cbdf3 NE	364	$define\|true\|[yY]*)
	365	cc="$cc -maix64"
	366	ld="$cc"
	367	;;
	368	*)
	369	cc="$cc -maix32"
	370	ld="$cc"
	371	;;
0c0f8223	372	esac
2463cec9 MB	373	echo >&4 "(using ccflags $ccflags)"
	374	echo >&4 "(using ldflags $ldflags)"
	375	echo >&4 "(using lddlflags $lddlflags)"
efeaa891 JH	376	;;
efeaa891 JH	377	esac
2463cec9 MB	378	;;
2463cec9 MB	379	esac
19e194ad JH	380	EOCBU
19e194ad JH	381
19e194ad	382	cat > UU/use64bitall.cbu <<'EOCBU'
2463cec9	383	# This script UU/use64bitall.cbu will get 'called-back' by Configure
de6124c8	384	# after it has prompted the user for whether to be maximally 64-bitty.
19e194ad	385	case "$use64bitall" in
2463cec9 MB	386	$define\|true\|[yY]*)
	387	echo " "
	388	echo "Checking the CPU width of your hardware..." >&4
	389	$cat >size.c <<EOCP
19e194ad JH	390	#include <stdio.h>
	391	#include <sys/systemcfg.h>
	392	int main (void)
	393	{
2463cec9 MB	394	printf ("%d\n", _system_configuration.width);
	395	return (0);
	396	}
19e194ad	397	EOCP
2463cec9 MB	398	set size
	399	if eval $compile_ok; then
	400	qacpuwidth=`./size`
	401	echo "You are running on $qacpuwidth bit hardware."
	402	else
	403	dflt="32"
	404	echo " "
	405	echo "(I can't seem to compile the test program. Guessing...)"
	406	rp="What is the width of your CPU (in bits)?"
	407	. ./myread
	408	qacpuwidth="$ans"
19e194ad	409	fi
2463cec9 MB	410	$rm -f size.c size
	411
	412	case "$qacpuwidth" in
19e194ad JH	413	32*)
	414	cat >&4 <<EOM
	415	Bzzzt! At present, you can only perform a
	416	full 64-bit build on a 64-bit machine.
	417	EOM
	418	exit 1
	419	;;
	420	esac
2463cec9 MB	421	qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
	422	qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
	423	# See jhi's comments above regarding this re-eval. I've
	424	# seen similar weirdness in the form of:
	425	#
19e194ad	426	# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
2463cec9 MB	427	#
	428	# error messages from 'cc -E' invocation. Again, the offending
	429	# string is simply not detectable by any means. Since it doesn't
	430	# do any harm, I didn't pursue it. -- sh
	431	qaldflags="`echo $qaldflags`"
af638b87	432	qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
2463cec9 MB	433	# -q32 and -b32 may have been set by uselargefiles or user.
	434	# Remove them.
	435	ccflags="`echo $ccflags \| sed -e 's@-q32@@'`"
	436	ldflags="`echo $ldflags \| sed -e 's@-b32@@'`"
0c0f8223 MB	437	case "$cc" in
	438	gcc)
	439	ccflags="`echo $ccflags \| sed -e 's@-q64@-maix64@'`"
	440	ccflags_uselargefiles="`echo $ccflags_uselargefiles \| sed -e 's@-q64@-maix64@'`"
	441	qacflags="`echo $qacflags \| sed -e 's@-q64@-maix64@'`"
	442	;;
	443	esac
2463cec9 MB	444	# Tell archiver to use large format. Unless we remove 'ar'
	445	# from 'trylist', the Configure script will just reset it to 'ar'
	446	# immediately prior to writing config.sh. This took me hours
	447	# to figure out.
	448	trylist="`echo $trylist \| sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
	449	ar="ar -X64"
	450	nm_opt="-X64 $nm_opt"
2463cec9 MB	451	case "$qacflags$qaldflags$qalibs" in
	452	'') ;;
	453	*) ccflags="$ccflags $qacflags"
be7cbdf3	454	ldflags="$ldflags"
2463cec9 MB	455	lddlflags="$qaldflags $lddlflags"
	456	libswanted="$libswanted $qalibs"
	457	;;
19e194ad	458	esac
2463cec9	459	case "$ccflags" in
19e194ad	460	-DUSE_64_BIT_ALL) ;;
2463cec9	461	*) ccflags="$ccflags -DUSE_64_BIT_ALL";;
19e194ad	462	esac
2463cec9	463	case "$archname64" in
19e194ad JH	464	''\|64*) archname64=64all ;;
19e194ad JH	465	esac
2463cec9 MB	466	longsize="8"
	467	qacflags=''
	468	qaldflags=''
	469	qalibs=''
	470	qacpuwidth=''
	471	;;
	472	esac
efeaa891	473	EOCBU
5b877257	474
2463cec9	475	if test $usenativedlopen = 'true' ; then
fd90a50d	476	ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
142c1590 MB	477	# -brtl Enables a binary to use run time linking
	478	# -bdynamic When used with -brtl, tells linker to search for
	479	# ".so"-suffix libraries as well as ".a" suffix
	480	# libraries. AIX allows both .so and .a libraries to
	481	# contain dynamic shared objects.
fd90a50d	482	case "$cc" in
be7cbdf3 NE	483	gcc) ldflags="$ldflags -Wl,-brtl -Wl,-bdynamic" ;;
be7cbdf3 NE	484	*) ldflags="$ldflags -brtl -bdynamic" ;;
9d20a131	485	esac
2463cec9 MB	486	elif test -f /lib/libC.a -a X"`$cc -v 2>&1 \| grep gcc`" = X; then
	487	# If the C++ libraries, libC and libC_r, are available we will
	488	# prefer them over the vanilla libc, because the libC contain
	489	# loadAndInit() and terminateAndUnload() which work correctly
	490	# with C++ statics while libc load() and unload() do not. See
	491	# ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
	492	# usethreads.cbu, if needed.
	493
	494	# Cify libswanted.
	495	set `echo X "$libswanted "\| sed -e 's/ c / C c /'`
	496	shift
	497	libswanted="$*"
	498	# Cify lddlflags.
	499	set `echo X "$lddlflags "\| sed -e 's/ -lc / -lC -lc /'`
	500	shift
	501	lddlflags="$*"
	502	fi
4e774c84	503
522b859a	504	case "$PASE" in
2463cec9	505	define)
522b859a	506	case "$prefix" in
2463cec9 MB	507	'') prefix=/QOpenSys/perl ;;
2463cec9 MB	508	esac
522b859a JH	509	cat >&4 <<EOF
	510
	511	***
	512	*** You seem to be compiling in AIX for the OS/400 PASE environment.
	513	*** I'm not going to use the AIX bind, nsl, and possible util libraries, then.
	514	*** I'm also not going to install perl as /usr/bin/perl.
	515	*** Perl will be installed under $prefix.
	516	*** For instructions how to install this build from AIX to PASE,
	517	*** see the file README.os400. Accept the "aix" for the question
	518	*** about "Operating system name".
	519	***
	520	EOF
	521	set `echo " $libswanted " \| sed -e 's@ bind @ @' -e 's@ nsl @ @' -e 's@ util @ @'`
	522	shift
	523	libswanted="$*"
	524	installusrbinperl="$undef"
abeab9d3 RGS	525
	526	# V5R1 doesn't have this (V5R2 does), without knowing
	527	# which one we have it's safer to be pessimistic.
	528	# Cwd will work fine even without fchdir(), but if
	529	# V5R1 tries to use code compiled assuming fchdir(),
	530	# lots of grief will issue forth from Cwd.
	531	case "$d_fchdir" in
2463cec9 MB	532	'') d_fchdir="$undef" ;;
2463cec9 MB	533	esac
522b859a	534	;;
2463cec9	535	esac
522b859a	536
f67e8e0b MB	537	# remove libbsd.a from wanted libraries
	538	libswanted=`echo " $libswanted " \| sed -e 's/ bsd / /'`
	539	libswanted=`echo " $libswanted " \| sed -e 's/ BSD / /'`
	540	d_flock='undef'
	541
c533d96e	542	# remove libgdbm from wanted libraries
d549c43d RT	543	# The libgdbm < 1.8.3-5 from the AIX Toolbox is not working
	544	# because two wrong .h are present
	545	if [ -f "/opt/freeware/include/gdbm/dbm.h" ] \|\|
	546	[ -f "/opt/freeware/include/gdbm/ndbm.h" ]; then
	547	echo "GDBM support disabled because your GDBM package contains extraneous headers - see README.aix."
	548	libswanted=`echo " $libswanted " \| sed -e 's/ gdbm / /'`
	549	i_gdbm='undef'
	550	i_gdbmndbm='undef'
	551	fi
5b877257	552	# EOF