[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

# 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

# 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 --version | sed 's/.*(GCC) *//'`
	    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}'`
	# Redbooks state AIX-5 only supports vac-5.0.2.0 and up
	;;
    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 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"

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_strerror_r='undef'

	ccflags="$ccflags -DNEED_PTHREAD_INIT"
	case "$cc" in
	    *gcc*) ccflags="-D_THREAD_SAFE $ccflags" ;;

	    cc_r) ;;
	    cc|xl[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

	# 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="$*"
	;;
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

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@@'`"
	# 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"
	qacflags=''
	qaldflags=''
	qalibs=''
	qacpuwidth=''
	;;
    esac
EOCBU

if test $usenativedlopen = 'true' ; then
    ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
    case "$cc" in
	*gcc*) ldflags="$ldflags -Wl,-brtl" ;;
	*)     ldflags="$ldflags -brtl" ;;
	esac
elif test -f /lib/libC.a -a X"`$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

# 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 "$usemymalloc" in
2463cec9 MB	39	'') usemymalloc='n' ;;
2463cec9 MB	40	esac
bbc711f9 DF	41
	42	# Intuiting the existence of system calls under AIX is difficult,
	43	# at best; the safest technique is to find them empirically.
	44
2463cec9 MB	45	case "$usenativedlopen" in
	46	'') usenativedlopen='true' ;;
	47	esac
cc628cc3	48
3c321fdc	49	so="a"
0d9ec2f4 JH	50	# AIX itself uses .o (libc.o) but we prefer compatibility
	51	# with the rest of the world and with rest of the scripting
	52	# languages (Tcl, Python) and related systems (SWIG).
	53	# Stephanie Beals <bealzy@us.ibm.com>
	54	dlext="so"
3c321fdc	55
19e194ad JH	56	# Take possible hint from the environment. If 32-bit is set in the
	57	# environment, we can override it later. If set for 64, the
	58	# 'sizeof' test sees a native 64-bit architecture and never looks back.
	59	case "$OBJECT_MODE" in
2463cec9	60	32) cat >&4 <<EOF
19e194ad	61
2463cec9	62	You have OBJECT_MODE=32 set in the environment.
19e194ad JH	63	I take this as a hint you do not want to
	64	build for a 64-bit address space. You will be
	65	given the opportunity to change this later.
	66	EOF
2463cec9 MB	67	;;
2463cec9 MB	68	64) cat >&4 <<EOF
19e194ad	69
2463cec9	70	You have OBJECT_MODE=64 set in the environment.
19e194ad JH	71	This forces a full 64-bit build. If that is
	72	not what you intended, please terminate this
	73	program, unset it and restart.
	74	EOF
2463cec9 MB	75	;;
2463cec9 MB	76	esac
1aef975c AD	77
	78	# uname -m output is too specific and not appropriate here
	79	case "$archname" in
2463cec9 MB	80	'') archname="$osname" ;;
2463cec9 MB	81	esac
1aef975c	82
bd9b35c9 JH	83	cc=${cc:-cc}
bd9b35c9 JH	84
1c00c3fe MB	85	ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
	86	case "$cc" in
	87	gcc) ;;
	88	*) ccflags="$ccflags -qmaxmem=-1 -qnoansialias" ;;
80589958	89	esac
1c00c3fe	90	nm_opt='-B'
1aef975c	91
bbc711f9 DF	92	# These functions don't work like Perl expects them to.
	93	d_setregid='undef'
	94	d_setreuid='undef'
	95
1aef975c	96	# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
a0d0e21e LW	97	#
a0d0e21e LW	98	# Tell perl which symbols to export for dynamic linking.
411de0ab MB	99	cccdlflags='none' # All AIX code is position independent
411de0ab MB	100	cc_type=xlc # do not export to config.sh
4633a7c4	101	case "$cc" in
2463cec9 MB	102	gcc)
	103	cc_type=gcc
	104	ccdlflags='-Xlinker'
	105	if [ "X$gccversion" = "X" ]; then
	106	# Done too late in Configure if hinted
	107	gccversion=`$cc --version \| sed 's/.(GCC) //'`
	108	fi
2973cfbe	109	;;
2463cec9 MB	110
	111	) ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| grep -v '\.msg\.[A-Za-z_]\.' \| head -1 \| awk '{print $1,$2}'`
	112	case "$ccversion" in
	113	'') ccversion=`lslpp -L \| grep 'IBM C and C++ Compilers LUM$'` ;;
	114
	115	......*) # Ahhrgg, more than one C compiler installed
	116	first_cc_path=`which ${cc:-cc}`
	117	case "$first_cc_path" in
	118	vac)
	119	cc_type=vac ;;
	120
	121	/usr/bin/cc) # Check the symlink
	122	if [ -h $first_cc_path ] ; then
	123	ls -l $first_cc_path > reflect
	124	if grep -i vac reflect >/dev/null 2>&1 ; then
	125	cc_type=vac
	126	fi
	127	rm -f reflect
	128	fi
	129	;;
	130	esac
	131	ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| grep -i $cc_type \| head -1`
	132	;;
	133
	134	vac...)
	135	cc_type=vac
	136	;;
	137	esac
	138
	139	ccversion=`echo "$ccversion" \| awk '{print $2}'`
	140	# Redbooks state AIX-5 only supports vac-5.0.2.0 and up
6b356c8e	141	;;
2463cec9 MB	142	esac
2463cec9 MB	143
5f9d9a17 ME	144	# the required -bE:$installarchlib/CORE/perl.exp is added by
5f9d9a17 ME	145	# libperl.U (Configure) later.
a0d0e21e	146
411de0ab MB	147	# The first 3 options would not be needed if dynamic libs. could be linked
	148	# with the compiler instead of ld.
	149	# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
	150	# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
	151	# symbol: boot_$(EXP) can it be auto-generated?
1c00c3fe	152	lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
411de0ab	153
d002699e MB	154	case "$use64bitall" in
	155	$define\|true\|[yY]*) use64bitint="$define" ;;
	156	esac
	157
	158	case "$usemorebits" in
	159	$define\|true\|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
	160	esac
	161
	162	case $cc_type in
	163	vac\|xlc)
	164	case "$uselongdouble" in
	165	$define\|true\|[yY]*)
	166	ccflags="$ccflags -qlongdouble"
	167	libswanted="c128 $libswanted"
411de0ab	168	lddlflags=`echo "$lddlflags " \| sed -e 's/ -lc / -lc128 -lc /'`
d002699e MB	169	;;
d002699e MB	170	esac
2463cec9	171	;;
d002699e MB	172	esac
d002699e MB	173
444379fb	174	case "$cc" in
2463cec9 MB	175	gcc) ;;
	176
	177	cc\|xlc) # cc should've been set by line 116 or so if empty.
444379fb	178	if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
2463cec9	179	case ":$PATH:" in
444379fb	180	:/usr/vac/bin:) ;;
2463cec9	181	*) if test ! -x /QOpenSys/usr/bin/$cc; then
61074b56 JH	182	# The /QOpenSys/usr/bin/$cc saves us if we are
61074b56 JH	183	# building natively in OS/400 PASE.
e6604a4d	184	cat >&4 <<EOF
444379fb JH	185
	186	***
	187	*** You either implicitly or explicitly specified an IBM C compiler,
	188	*** but you do not seem to have one in /usr/bin, but you seem to have
	189	*** the VAC installed in /usr/vac, but you do not have the /usr/vac/bin
	190	*** in your PATH. I suggest adding that and retrying Configure.
	191	***
	192	EOF
61074b56	193	exit 1
2463cec9 MB	194	fi
2463cec9 MB	195	;;
444379fb	196	esac
2463cec9	197	fi
444379fb	198	;;
2463cec9	199	esac
444379fb	200
5cf1d1f1	201	case "$ldlibpthname" in
2463cec9	202	'') ldlibpthname=LIBPATH ;;
3427abbf	203	esac
52e1cb5e	204
2463cec9	205	# This script UU/usethreads.cbu will get 'called-back' by Configure
104d25b7 JH	206	# after it has prompted the user for whether to use threads.
	207	cat > UU/usethreads.cbu <<'EOCBU'
	208	case "$usethreads" in
2463cec9 MB	209	$define\|true\|[yY]*)
	210	d_drand48_r='undef'
	211	d_endgrent_r='undef'
	212	d_endpwent_r='undef'
	213	d_getgrent_r='undef'
	214	d_getpwent_r='undef'
	215	d_random_r='undef'
	216	d_setgrent_r='undef'
	217	d_setpwent_r='undef'
	218	d_srand48_r='undef'
	219	d_strerror_r='undef'
	220
4e774c84 SB	221	ccflags="$ccflags -DNEED_PTHREAD_INIT"
4e774c84 SB	222	case "$cc" in
2463cec9 MB	223	gcc) ccflags="-D_THREAD_SAFE $ccflags" ;;
	224
	225	cc_r) ;;
	226	cc\|xl[cC]\|xl[cC]_r)
	227	echo >&4 "Switching cc to cc_r because of POSIX threads."
	228	# xlc_r has been known to produce buggy code in AIX 4.3.2.
	229	# (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
	230	# --jhi@iki.fi
	231	cc=cc_r
	232	;;
	233
	234	'') cc=cc_r ;;
	235
	236	*)
	237	cat >&4 <<EOM
6b356c8e JH	238	*** For pthreads you should use the AIX C compiler cc_r.
	239	*** (now your compiler was set to '$cc')
	240	*** Cannot continue, aborting.
104d25b7	241	EOM
2463cec9 MB	242	exit 1
	243	;;
	244	esac
c88be79f JH	245
c88be79f JH	246	# Insert pthreads to libswanted, before any libc or libC.
15173baf	247	set `echo X "$libswanted "\| sed -e 's/ \([cC]\) / pthreads \1 /'`
c88be79f JH	248	shift
	249	libswanted="$*"
	250	# Insert pthreads to lddlflags, before any libc or libC.
15173baf	251	set `echo X "$lddlflags " \| sed -e 's/ \(-l[cC]\) / -lpthreads \1 /'`
c88be79f JH	252	shift
c88be79f JH	253	lddlflags="$*"
104d25b7 JH	254	;;
	255	esac
	256	EOCBU
fa9667c9	257
2463cec9	258	# This script UU/uselargefiles.cbu will get 'called-back' by Configure
bd9b35c9	259	# after it has prompted the user for whether to use large files.
8a647129	260	cat > UU/uselargefiles.cbu <<'EOCBU'
bd9b35c9	261	case "$uselargefiles" in
2463cec9 MB	262	''\|$define\|true\|[yY]*)
	263	# Configure should take care of use64bitint and use64bitall being
	264	# defined before uselargefiles.cbu is consulted.
	265	if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
21c7e20c JH	266	# Keep these at the left margin.
	267	ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
	268	ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
2463cec9	269	else
9422c00b	270	# Keep these at the left margin.
45c9e83b JH	271	ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
45c9e83b JH	272	ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
2463cec9 MB	273	fi
2463cec9 MB	274	if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
21c7e20c JH	275	# Keep this at the left margin.
21c7e20c JH	276	libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
2463cec9	277	else
9422c00b	278	# Keep this at the left margin.
45c9e83b	279	libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
2463cec9 MB	280	fi
2463cec9 MB	281
45c9e83b	282	case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
2463cec9 MB	283	'') ;;
	284	*) ccflags="$ccflags $ccflags_uselargefiles"
	285	ldflags="$ldflags $ldflags_uselargefiles"
	286	libswanted="$libswanted $libswanted_uselargefiles"
	287	;;
	288	esac
6b8eaf93	289
2463cec9 MB	290	case "$gccversion" in
	291	'') ;;
	292	*) # Remove xlc-specific -qflags.
	293	ccflags="`echo $ccflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
	294	ldflags="`echo $ldflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
	295	# Move xlc-specific -bflags.
	296	ccflags="`echo $ccflags \| sed -e 's@ -b@ -Wl,-b@g'`"
	297	ldflags="`echo ' '$ldflags \| sed -e 's@ -b@ -Wl,-b@g'`"
	298	lddlflags="`echo ' '$lddlflags \| sed -e 's@ -b@ -Wl,-b@g'`"
	299	ld='gcc'
	300	echo >&4 "(using ccflags $ccflags)"
	301	echo >&4 "(using ldflags $ldflags)"
	302	echo >&4 "(using lddlflags $lddlflags)"
efeaa891 JH	303	;;
efeaa891 JH	304	esac
2463cec9 MB	305	;;
2463cec9 MB	306	esac
19e194ad JH	307	EOCBU
19e194ad JH	308
19e194ad	309	cat > UU/use64bitall.cbu <<'EOCBU'
2463cec9	310	# This script UU/use64bitall.cbu will get 'called-back' by Configure
de6124c8	311	# after it has prompted the user for whether to be maximally 64-bitty.
19e194ad	312	case "$use64bitall" in
2463cec9 MB	313	$define\|true\|[yY]*)
	314	echo " "
	315	echo "Checking the CPU width of your hardware..." >&4
	316	$cat >size.c <<EOCP
19e194ad JH	317	#include <stdio.h>
	318	#include <sys/systemcfg.h>
	319	int main (void)
	320	{
2463cec9 MB	321	printf ("%d\n", _system_configuration.width);
	322	return (0);
	323	}
19e194ad	324	EOCP
2463cec9 MB	325	set size
	326	if eval $compile_ok; then
	327	qacpuwidth=`./size`
	328	echo "You are running on $qacpuwidth bit hardware."
	329	else
	330	dflt="32"
	331	echo " "
	332	echo "(I can't seem to compile the test program. Guessing...)"
	333	rp="What is the width of your CPU (in bits)?"
	334	. ./myread
	335	qacpuwidth="$ans"
19e194ad	336	fi
2463cec9 MB	337	$rm -f size.c size
	338
	339	case "$qacpuwidth" in
19e194ad JH	340	32*)
	341	cat >&4 <<EOM
	342	Bzzzt! At present, you can only perform a
	343	full 64-bit build on a 64-bit machine.
	344	EOM
	345	exit 1
	346	;;
	347	esac
2463cec9 MB	348	qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
	349	qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
	350	# See jhi's comments above regarding this re-eval. I've
	351	# seen similar weirdness in the form of:
	352	#
19e194ad	353	# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
2463cec9 MB	354	#
	355	# error messages from 'cc -E' invocation. Again, the offending
	356	# string is simply not detectable by any means. Since it doesn't
	357	# do any harm, I didn't pursue it. -- sh
	358	qaldflags="`echo $qaldflags`"
	359	qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
	360	# -q32 and -b32 may have been set by uselargefiles or user.
	361	# Remove them.
	362	ccflags="`echo $ccflags \| sed -e 's@-q32@@'`"
	363	ldflags="`echo $ldflags \| sed -e 's@-b32@@'`"
	364	# Tell archiver to use large format. Unless we remove 'ar'
	365	# from 'trylist', the Configure script will just reset it to 'ar'
	366	# immediately prior to writing config.sh. This took me hours
	367	# to figure out.
	368	trylist="`echo $trylist \| sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
	369	ar="ar -X64"
	370	nm_opt="-X64 $nm_opt"
	371	# Note: Placing the 'qacflags' variable into the 'ldflags' string
	372	# is NOT a typo. ldflags is passed to the C compiler for final
	373	# linking, and it wants -q64 (-b64 is for ld only!).
	374	case "$qacflags$qaldflags$qalibs" in
	375	'') ;;
	376	*) ccflags="$ccflags $qacflags"
	377	ldflags="$ldflags $qacflags"
	378	lddlflags="$qaldflags $lddlflags"
	379	libswanted="$libswanted $qalibs"
	380	;;
19e194ad	381	esac
2463cec9	382	case "$ccflags" in
19e194ad	383	-DUSE_64_BIT_ALL) ;;
2463cec9	384	*) ccflags="$ccflags -DUSE_64_BIT_ALL";;
19e194ad	385	esac
2463cec9	386	case "$archname64" in
19e194ad JH	387	''\|64*) archname64=64all ;;
19e194ad JH	388	esac
2463cec9 MB	389	longsize="8"
	390	qacflags=''
	391	qaldflags=''
	392	qalibs=''
	393	qacpuwidth=''
	394	;;
	395	esac
efeaa891	396	EOCBU
5b877257	397
2463cec9	398	if test $usenativedlopen = 'true' ; then
fd90a50d MB	399	ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
fd90a50d MB	400	case "$cc" in
2463cec9 MB	401	gcc) ldflags="$ldflags -Wl,-brtl" ;;
2463cec9 MB	402	*) ldflags="$ldflags -brtl" ;;
9d20a131	403	esac
2463cec9 MB	404	elif test -f /lib/libC.a -a X"`$cc -v 2>&1 \| grep gcc`" = X; then
	405	# If the C++ libraries, libC and libC_r, are available we will
	406	# prefer them over the vanilla libc, because the libC contain
	407	# loadAndInit() and terminateAndUnload() which work correctly
	408	# with C++ statics while libc load() and unload() do not. See
	409	# ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
	410	# usethreads.cbu, if needed.
	411
	412	# Cify libswanted.
	413	set `echo X "$libswanted "\| sed -e 's/ c / C c /'`
	414	shift
	415	libswanted="$*"
	416	# Cify lddlflags.
	417	set `echo X "$lddlflags "\| sed -e 's/ -lc / -lC -lc /'`
	418	shift
	419	lddlflags="$*"
	420	fi
4e774c84	421
522b859a	422	case "$PASE" in
2463cec9	423	define)
522b859a	424	case "$prefix" in
2463cec9 MB	425	'') prefix=/QOpenSys/perl ;;
2463cec9 MB	426	esac
522b859a JH	427	cat >&4 <<EOF
	428
	429	***
	430	*** You seem to be compiling in AIX for the OS/400 PASE environment.
	431	*** I'm not going to use the AIX bind, nsl, and possible util libraries, then.
	432	*** I'm also not going to install perl as /usr/bin/perl.
	433	*** Perl will be installed under $prefix.
	434	*** For instructions how to install this build from AIX to PASE,
	435	*** see the file README.os400. Accept the "aix" for the question
	436	*** about "Operating system name".
	437	***
	438	EOF
	439	set `echo " $libswanted " \| sed -e 's@ bind @ @' -e 's@ nsl @ @' -e 's@ util @ @'`
	440	shift
	441	libswanted="$*"
	442	installusrbinperl="$undef"
abeab9d3 RGS	443
	444	# V5R1 doesn't have this (V5R2 does), without knowing
	445	# which one we have it's safer to be pessimistic.
	446	# Cwd will work fine even without fchdir(), but if
	447	# V5R1 tries to use code compiled assuming fchdir(),
	448	# lots of grief will issue forth from Cwd.
	449	case "$d_fchdir" in
2463cec9 MB	450	'') d_fchdir="$undef" ;;
2463cec9 MB	451	esac
522b859a	452	;;
2463cec9	453	esac
522b859a	454
5b877257	455	# EOF