[perl5.git] / hints / aix_4.sh

# hints/aix.sh
#
# Split off from aix.sh on 04 Feb 2004 by H.Merijn Brand
#
# 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@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 letting Configure test if nm
# extraction will work.
case "$osvers" in
    4.1.*|4.2.*)
	case "$usenm" in
	    '') usenm='undef' ;;
	    esac
	case "$usenativedlopen" in
	    '') usenativedlopen='false' ;;
	    esac
	;;
    *)
	case "$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

# 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

# since change #28654, _XOPEN_SOURCE symbol needs to be defined on aix 4.2
# to avoid the following build error in perlio.c :
# 1506-294 (S) Syntax error in expression on #if directive.
#
case "$osvers" in
    4.2.1.0)
	ccflags="$ccflags -D_XOPEN_SOURCE"
	# aix 4.2 does not have IPv6 support
	d_inetpton='undef'
	d_inetntop='undef'
	;;
    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 -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}'`

	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 too many optimizer
*** bugs to compile a working Perl.
***
*** Consider upgrading your C compiler, or getting the GNU cc (gcc).
***
*** Cannot continue, aborting.
EOF
		exit 1
		;;

	    5.0.1.0)
		cat >&4 <<EOF
***
*** This C compiler ($ccversion) is known to have optimizer problems
*** when compiling regcomp.c.
***
*** Disabling optimization for that file but consider upgrading
*** your C compiler.
***
EOF
regcomp_cflags='optimize='
		;;
	    esac
	case "$ccversion" in
	    5*) usemallocwrap='n' ;; # causes 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 -bexpall -G -bnoentry -lc"
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

# 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 "$ccversion" in    # Don't know if needed for gcc
	    3.1.4.*|5.0.2.*)    # libswanted "bind ... c ..." => "... c bind ..."
	        set `echo X "$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]*)
	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

		case "`oslevel`" in
		    4.2.1.*) i_crypt='undef' ;;
		    esac
		;;
	    '')
		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
	    '') ;;
	    *)  # 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'`"
	        ld='gcc'
	        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
	    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
	;;
    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
	    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"
	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="$ldflags -brtl" ;;
        esac
else
    case `oslevel` in
	4.2.*)	;;	# libC_r has broke gettimeofday
	*)  # If the C++ libraries, libC and libC_r, are available we will
	    # prefer them over the vanilla libc, because the libC contain
	    # loadAndInit() and terminateAndUnload() which work correctly
	    # with C++ statics while libc load() and unload() do not. See
	    # ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
	    # usethreads.cbu, if needed.
	    if test -f /lib/libC.a -a X"`$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
	esac
    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
b6d030a4 MB	1	# hints/aix.sh
	2	#
	3	# Split off from aix.sh on 04 Feb 2004 by H.Merijn Brand
	4	#
	5	# AIX 4.1 hints thanks to Christopher Chan-Nui <channui@austin.ibm.com>.
	6	# AIX 4.1 pthreading by Christopher Chan-Nui <channui@austin.ibm.com> and
	7	# Jarkko Hietaniemi <jhi@iki.fi>.
	8	# AIX 4.3.x LP64 build by Steven Hirsch <hirschs@btv.ibm.com>
	9	# Merged on Mon Feb 6 10:22:35 EST 1995 by
	10	# Andy Dougherty <doughera@lafayette.edu>
	11
	12	# Contact dfavor@corridor.com for any of the following:
	13	#
	14	# - AIX 43x and above support
	15	# - gcc + threads support
	16	# - socks support
	17	#
	18	# Apr 99 changes:
	19	#
	20	# - use nm in AIX 43x and above
	21	# - gcc + threads now builds
	22	# [(added support for socks) Jul 99 SOCKS support rewritten]
	23	#
	24	# Notes:
	25	#
	26	# - shared libperl support is tricky. if ever libperl.a ends up
	27	# in /usr/local/lib/* it can override any subsequent builds of
	28	# that same perl release. to make sure you know where the shared
	29	# libperl.a is coming from do a 'dump -Hv perl' and check all the
	30	# library search paths in the loader header.
	31	#
	32	# it would be nice to warn the user if a libperl.a exists that is
	33	# going to override the current build, but that would be complex.
	34	#
	35	# better yet, a solid fix for this situation should be developed.
	36	#
	37
	38	# Configure finds setrgid and setruid, but they're useless. The man
	39	# pages state:
	40	# setrgid: The EPERM error code is always returned.
	41	# setruid: The EPERM error code is always returned. Processes cannot
	42	# reset only their real user IDs.
	43	d_setrgid='undef'
	44	d_setruid='undef'
	45
	46	alignbytes=8
	47
	48	case "$usemymalloc" in
	49	'') usemymalloc='n' ;;
	50	esac
	51
	52	# Intuiting the existence of system calls under AIX is difficult,
	53	# at best; the safest technique is to find them empirically.
	54
	55	# AIX 4.3.* and above default to letting Configure test if nm
	56	# extraction will work.
	57	case "$osvers" in
	58	4.1.\|4.2.)
	59	case "$usenm" in
	60	'') usenm='undef' ;;
	61	esac
	62	case "$usenativedlopen" in
	63	'') usenativedlopen='false' ;;
	64	esac
65	;;
66	*)
67	case "$usenativedlopen" in
68	'') usenativedlopen='true' ;;
69	esac
70	;;
71	esac
72
73	so="a"
74	# AIX itself uses .o (libc.o) but we prefer compatibility
75	# with the rest of the world and with rest of the scripting
76	# languages (Tcl, Python) and related systems (SWIG).
77	# Stephanie Beals <bealzy@us.ibm.com>
78	dlext="so"
79
80	# Take possible hint from the environment. If 32-bit is set in the
81	# environment, we can override it later. If set for 64, the
82	# 'sizeof' test sees a native 64-bit architecture and never looks back.
83	case "$OBJECT_MODE" in
84	32)
85	cat >&4 <<EOF
86
87	You have OBJECT_MODE=32 set in the environment.
88	I take this as a hint you do not want to
89	build for a 64-bit address space. You will be
90	given the opportunity to change this later.
91	EOF
92	;;
93	64)
94	cat >&4 <<EOF
95
96	You have OBJECT_MODE=64 set in the environment.
97	This forces a full 64-bit build. If that is
98	not what you intended, please terminate this
99	program, unset it and restart.
100	EOF
101	;;
102	*) ;;
103	esac
104
105	# uname -m output is too specific and not appropriate here
106	case "$archname" in
107	'') archname="$osname" ;;
108	esac
109
110	cc=${cc:-cc}
111	ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
112	case "$cc" in
113	gcc) ;;
88567e60	114	*) ccflags="$ccflags -qmaxmem=-1 -qnoansialias" ;;
b6d030a4	115	esac
28c7948a JAE	116
	117	# since change #28654, _XOPEN_SOURCE symbol needs to be defined on aix 4.2
	118	# to avoid the following build error in perlio.c :
	119	# 1506-294 (S) Syntax error in expression on #if directive.
	120	#
	121	case "$osvers" in
4f1623e5 MB	122	4.2.1.0)
	123	ccflags="$ccflags -D_XOPEN_SOURCE"
	124	# aix 4.2 does not have IPv6 support
	125	d_inetpton='undef'
	126	d_inetntop='undef'
	127	;;
28c7948a	128	esac
b6d030a4 MB	129	nm_opt='-B'
	130
	131	# These functions don't work like Perl expects them to.
	132	d_setregid='undef'
	133	d_setreuid='undef'
	134
	135	# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
	136	#
	137	# Tell perl which symbols to export for dynamic linking.
	138	cccdlflags='none' # All AIX code is position independent
	139	cc_type=xlc # do not export to config.sh
	140	case "$cc" in
	141	gcc)
	142	cc_type=gcc
	143	ccdlflags='-Xlinker'
	144	if [ "X$gccversion" = "X" ]; then
	145	# Done too late in Configure if hinted
0baa0948	146	gccversion=`$cc -dumpversion`
b6d030a4 MB	147	fi
	148	;;
	149
	150	) ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| grep -v '\.msg\.[A-Za-z_]\.' \| head -1 \| awk '{print $1,$2}'`
	151	case "$ccversion" in
	152	'') ccversion=`lslpp -L \| grep 'IBM C and C++ Compilers LUM$'`
	153	;;
	154
	155	......*) # Ahhrgg, more than one C compiler installed
	156	first_cc_path=`which ${cc:-cc}`
	157	case "$first_cc_path" in
	158	vac)
	159	cc_type=vac ;;
	160	/usr/bin/cc) # Check the symlink
	161	if [ -h $first_cc_path ] ; then
	162	ls -l $first_cc_path > reflect
	163	if grep -i vac reflect >/dev/null 2>&1 ; then
	164	cc_type=vac
	165	fi
	166	rm -f reflect
	167	fi
	168	;;
	169	esac
	170	ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| grep -i $cc_type \| head -1`
	171	;;
	172
	173	vac...)
	174	cc_type=vac
	175	;;
	176	esac
	177	ccversion=`echo "$ccversion" \| awk '{print $2}'`
	178
	179	case "$ccversion" in
	180	3.6.6.0)
	181	optimize='none'
	182	;;
	183
	184	4.4.0.0\|4.4.0.1\|4.4.0.2)
	185	cat >&4 <<EOF
	186	***
	187	*** This C compiler ($ccversion) is outdated.
	188	***
	189	*** Please upgrade to at least 4.4.0.3.
	190	***
	191	EOF
	192	;;
	193
	194	5.0.0.0)
	195	cat >&4 <<EOF
	196	***
	197	*** This C compiler ($ccversion) is known to have too many optimizer
	198	*** bugs to compile a working Perl.
	199	***
	200	*** Consider upgrading your C compiler, or getting the GNU cc (gcc).
	201	***
	202	*** Cannot continue, aborting.
	203	EOF
	204	exit 1
	205	;;
	206
	207	5.0.1.0)
	208	cat >&4 <<EOF
	209	***
	210	*** This C compiler ($ccversion) is known to have optimizer problems
211	*** when compiling regcomp.c.
212	***
213	*** Disabling optimization for that file but consider upgrading
214	*** your C compiler.
215	***
216	EOF
217	regcomp_cflags='optimize='
218	;;
219	esac
88567e60 MB	220	case "$ccversion" in
	221	5*) usemallocwrap='n' ;; # causes panic in miniperl
	222	esac
b6d030a4 MB	223	esac
	224	# the required -bE:$installarchlib/CORE/perl.exp is added by
	225	# libperl.U (Configure) later.
	226
	227	# The first 3 options would not be needed if dynamic libs. could be linked
	228	# with the compiler instead of ld.
	229	# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
	230	# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
	231	# symbol: boot_$(EXP) can it be auto-generated?
142c1590 MB	232	if test $usenativedlopen = 'true' ; then
	233	lddlflags="$lddlflags -bhalt:4 -bexpall -G -bnoentry -lc"
	234	else
	235	lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
	236	fi
b6d030a4 MB	237
	238	case "$use64bitall" in
	239	$define\|true\|[yY]*) use64bitint="$define" ;;
	240	esac
	241
	242	case "$usemorebits" in
	243	$define\|true\|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
	244	esac
	245
	246	case $cc_type in
	247	vac\|xlc)
	248	case "$uselongdouble" in
	249	$define\|true\|[yY]*)
	250	ccflags="$ccflags -qlongdouble"
	251	libswanted="c128 $libswanted"
	252	lddlflags=`echo "$lddlflags " \| sed -e 's/ -lc / -lc128 -lc /'`
	253	;;
	254	esac
	255	esac
	256
	257	case "$cc" in
	258	gcc) ;;
	259	cc\|xlc) # cc should've been set by line 116 or so if empty.
	260	if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
	261	case ":$PATH:" in
	262	:/usr/vac/bin:) ;;
	263	*) if test ! -x /QOpenSys/usr/bin/$cc; then
	264	# The /QOpenSys/usr/bin/$cc saves us if we are
	265	# building natively in OS/400 PASE.
	266	cat >&4 <<EOF
	267
	268	***
	269	*** You either implicitly or explicitly specified an IBM C compiler,
	270	*** but you do not seem to have one in /usr/bin, but you seem to have
	271	*** the VAC installed in /usr/vac, but you do not have the /usr/vac/bin
	272	*** in your PATH. I suggest adding that and retrying Configure.
	273	***
	274	EOF
	275	exit 1
	276	fi
	277	;;
	278	esac
	279	fi
	280	;;
	281	esac
	282
	283	case "$ldlibpthname" in
	284	'') ldlibpthname=LIBPATH ;;
	285	esac
	286
	287	# AIX 4.2 (using latest patchlevels on 20001130) has a broken bind
	288	# library (getprotobyname and getprotobynumber are outversioned by
	289	# the same calls in libc, at least for xlc version 3...
	290	case "`oslevel`" in
	291	4.2.1.*)
	292	case "$ccversion" in # Don't know if needed for gcc
	293	3.1.4.\|5.0.2.) # libswanted "bind ... c ..." => "... c bind ..."
	294	set `echo X "$libswanted "\| sed -e 's/ bind\( .*\) \([cC]\) / \1 \2 bind /'`
	295	shift
	296	libswanted="$*"
	297	;;
	298	esac
	299	;;
	300	esac
301
302	# This script UU/usethreads.cbu will get 'called-back' by Configure
303	# after it has prompted the user for whether to use threads.
304	cat > UU/usethreads.cbu <<'EOCBU'
305	case "$usethreads" in
306	$define\|true\|[yY]*)
307	d_drand48_r='undef'
308	d_endgrent_r='undef'
309	d_endpwent_r='undef'
310	d_getgrent_r='undef'
311	d_getpwent_r='undef'
312	d_random_r='undef'
313	d_setgrent_r='undef'
314	d_setpwent_r='undef'
315	d_srand48_r='undef'
316	d_strerror_r='undef'
317
318	ccflags="$ccflags -DNEED_PTHREAD_INIT"
319	case "$cc" in
320	gcc)
321	ccflags="-D_THREAD_SAFE $ccflags"
322	;;
323	cc_r) ;;
324	cc\|xl[cC]\|xl[cC]_r)
325	echo >&4 "Switching cc to cc_r because of POSIX threads."
326	# xlc_r has been known to produce buggy code in AIX 4.3.2.
327	# (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
328	# --jhi@iki.fi
329	cc=cc_r
330
331	case "`oslevel`" in
332	4.2.1.*) i_crypt='undef' ;;
333	esac
334	;;
335	'')
336	cc=cc_r
337	;;
338	*)
339	cat >&4 <<EOM
340	*** For pthreads you should use the AIX C compiler cc_r.
341	*** (now your compiler was set to '$cc')
342	*** Cannot continue, aborting.
343	EOM
344	exit 1
345	;;
346	esac
347
348	# c_rify libswanted.
349	set `echo X "$libswanted "\| sed -e 's/ \([cC]\) / \1_r /g'`
350	shift
351	libswanted="$*"
352	# c_rify lddlflags.
353	set `echo X "$lddlflags "\| sed -e 's/ \(-l[cC]\) / \1_r /g'`
354	shift
355	lddlflags="$*"
356
357	# Insert pthreads to libswanted, before any libc or libC.
358	set `echo X "$libswanted "\| sed -e 's/ \([cC]_r\) / pthreads \1 /'`
359	shift
360	libswanted="$*"
361	# Insert pthreads to lddlflags, before any libc or libC.
362	set `echo X "$lddlflags " \| sed -e 's/ \(-l[cC]_r\) / -lpthreads \1 /'`
363	shift
364	lddlflags="$*"
365	;;
366	esac
367	EOCBU
368
369	# This script UU/uselargefiles.cbu will get 'called-back' by Configure
370	# after it has prompted the user for whether to use large files.
371	cat > UU/uselargefiles.cbu <<'EOCBU'
372	case "$uselargefiles" in
373	''\|$define\|true\|[yY]*)
374	# Configure should take care of use64bitint and use64bitall being
375	# defined before uselargefiles.cbu is consulted.
376	if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
377	# Keep these at the left margin.
378	ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
379	ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
380	else
381	# Keep these at the left margin.
382	ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
383	ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
384	fi
385
386	# _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
387	# insert(?) something to $ldflags so that later (in Configure) evaluating
388	# $ldflags causes a newline after the '-b64' (the result of the getconf).
389	# (nothing strange shows up in $ldflags even in hexdump;
390	# so it may be something (a bug) in the shell, instead?)
391	# Try it out: just uncomment the below line and rerun Configure:
392	# echo >&4 "AIX 4.3.1.0 $ldflags_uselargefiles mystery" ; exit 1
393	# Just don't ask me how AIX does it, I spent hours wondering.
394	# Therefore the line re-evaluating ldflags_uselargefiles: it seems to fix
395	# the whatever it was that AIX managed to break. --jhi
396	ldflags_uselargefiles="`echo $ldflags_uselargefiles`"
397	if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
398	# Keep this at the left margin.
4319409b	399	libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
b6d030a4 MB	400	else
b6d030a4 MB	401	# Keep this at the left margin.
4319409b	402	libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
b6d030a4 MB	403	fi
	404
	405	case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
	406	'') ;;
	407	*) ccflags="$ccflags $ccflags_uselargefiles"
	408	ldflags="$ldflags $ldflags_uselargefiles"
	409	libswanted="$libswanted $libswanted_uselargefiles"
	410	;;
	411	esac
	412
	413	case "$gccversion" in
	414	'') ;;
	415	*) # Remove xlc-specific -qflags.
	416	ccflags="`echo $ccflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
	417	ldflags="`echo $ldflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
	418	# Move xlc-specific -bflags.
	419	ccflags="`echo $ccflags \| sed -e 's@ -b@ -Wl,-b@g'`"
	420	ldflags="`echo ' '$ldflags \| sed -e 's@ -b@ -Wl,-b@g'`"
	421	lddlflags="`echo ' '$lddlflags \| sed -e 's@ -b@ -Wl,-b@g'`"
1be326de	422	lddlflags="`echo ' '$lddlflags \| sed -e 's@ -G @ -Wl,-G @g'`"
b6d030a4 MB	423	ld='gcc'
	424	echo >&4 "(using ccflags $ccflags)"
	425	echo >&4 "(using ldflags $ldflags)"
	426	echo >&4 "(using lddlflags $lddlflags)"
	427	;;
	428	esac
	429	;;
	430	esac
	431	EOCBU
	432
	433	# This script UU/use64bitint.cbu will get 'called-back' by Configure
	434	# after it has prompted the user for whether to use 64 bit integers.
	435	cat > UU/use64bitint.cbu <<'EOCBU'
	436	case "$use64bitint" in
	437	$define\|true\|[yY]*)
	438	case "`oslevel`" in
	439	4.[012].*)
	440	cat >&4 <<EOM
	441	AIX `oslevel` does not support 64-bit interfaces.
	442	You should upgrade to at least AIX 4.3.
	443	EOM
	444	exit 1
	445	;;
	446	esac
	447	;;
	448	esac
	449	EOCBU
	450
	451	cat > UU/use64bitall.cbu <<'EOCBU'
	452	# This script UU/use64bitall.cbu will get 'called-back' by Configure
	453	# after it has prompted the user for whether to be maximally 64-bitty.
	454	case "$use64bitall" in
	455	$define\|true\|[yY]*)
	456	case "`oslevel`" in
	457	4.[012].*)
	458	cat >&4 <<EOM
	459	AIX `oslevel` does not support 64-bit interfaces.
	460	You should upgrade to at least AIX 4.3.
	461	EOM
	462	exit 1
	463	;;
	464	esac
	465	echo " "
	466	echo "Checking the CPU width of your hardware..." >&4
	467	$cat >size.c <<EOCP
	468	#include <stdio.h>
	469	#include <sys/systemcfg.h>
	470	int main (void)
	471	{
	472	printf ("%d\n", _system_configuration.width);
	473	return (0);
	474	}
	475	EOCP
	476	set size
	477	if eval $compile_ok; then
	478	qacpuwidth=`./size`
	479	echo "You are running on $qacpuwidth bit hardware."
	480	else
	481	dflt="32"
	482	echo " "
	483	echo "(I can't seem to compile the test program. Guessing...)"
	484	rp="What is the width of your CPU (in bits)?"
	485	. ./myread
	486	qacpuwidth="$ans"
487	fi
488	$rm -f size.c size
489	case "$qacpuwidth" in
490	32*)
491	cat >&4 <<EOM
492	Bzzzt! At present, you can only perform a
493	full 64-bit build on a 64-bit machine.
494	EOM
495	exit 1
496	;;
497	esac
498
499	qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
500	qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
501	# See jhi's comments above regarding this re-eval. I've
502	# seen similar weirdness in the form of:
503	#
504	# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
505	#
506	# error messages from 'cc -E' invocation. Again, the offending
507	# string is simply not detectable by any means. Since it doesn't
508	# do any harm, I didn't pursue it. -- sh
509	qaldflags="`echo $qaldflags`"
4319409b	510	qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
b6d030a4 MB	511	# -q32 and -b32 may have been set by uselargefiles or user.
	512	# Remove them.
	513	ccflags="`echo $ccflags \| sed -e 's@-q32@@'`"
	514	ldflags="`echo $ldflags \| sed -e 's@-b32@@'`"
	515	# Tell archiver to use large format. Unless we remove 'ar'
	516	# from 'trylist', the Configure script will just reset it to 'ar'
	517	# immediately prior to writing config.sh. This took me hours
	518	# to figure out.
	519	trylist="`echo $trylist \| sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
	520	ar="ar -X64"
	521	nm_opt="-X64 $nm_opt"
	522	# Note: Placing the 'qacflags' variable into the 'ldflags' string
	523	# is NOT a typo. ldflags is passed to the C compiler for final
	524	# linking, and it wants -q64 (-b64 is for ld only!).
	525	case "$qacflags$qaldflags$qalibs" in
	526	'') ;;
	527	*) ccflags="$ccflags $qacflags"
	528	ldflags="$ldflags $qacflags"
	529	lddlflags="$qaldflags $lddlflags"
	530	libswanted="$libswanted $qalibs"
	531	;;
	532	esac
	533	case "$ccflags" in
	534	-DUSE_64_BIT_ALL) ;;
	535	*) ccflags="$ccflags -DUSE_64_BIT_ALL";;
	536	esac
	537	case "$archname64" in
	538	''\|64*) archname64=64all ;;
	539	esac
	540	longsize="8"
	541	qacflags=''
	542	qaldflags=''
	543	qalibs=''
	544	qacpuwidth=''
	545	;;
	546	esac
	547	EOCBU
	548
	549	if test $usenativedlopen = 'true' ; then
	550	ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
	551	case "$cc" in
	552	gcc) ldflags="$ldflags -Wl,-brtl" ;;
	553	*) ldflags="$ldflags -brtl" ;;
	554	esac
	555	else
	556	case `oslevel` in
	557	4.2.*) ;; # libC_r has broke gettimeofday
	558	*) # If the C++ libraries, libC and libC_r, are available we will
	559	# prefer them over the vanilla libc, because the libC contain
	560	# loadAndInit() and terminateAndUnload() which work correctly
	561	# with C++ statics while libc load() and unload() do not. See
	562	# ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
	563	# usethreads.cbu, if needed.
	564	if test -f /lib/libC.a -a X"`$cc -v 2>&1 \| grep gcc`" = X; then
	565	# Cify libswanted.
	566	set `echo X "$libswanted "\| sed -e 's/ c / C c /'`
	567	shift
	568	libswanted="$*"
	569	# Cify lddlflags.
	570	set `echo X "$lddlflags "\| sed -e 's/ -lc / -lC -lc /'`
	571	shift
	572	lddlflags="$*"
	573	fi
	574	esac
575	fi
576
577	case "$PASE" in
578	define)
579	case "$prefix" in
580	'') prefix=/QOpenSys/perl ;;
581	esac
582	cat >&4 <<EOF
583
584	***
585	*** You seem to be compiling in AIX for the OS/400 PASE environment.
586	*** I'm not going to use the AIX bind, nsl, and possible util libraries, then.
587	*** I'm also not going to install perl as /usr/bin/perl.
588	*** Perl will be installed under $prefix.
589	*** For instructions how to install this build from AIX to PASE,
590	*** see the file README.os400. Accept the "aix" for the question
591	*** about "Operating system name".
592	***
593	EOF
594	set `echo " $libswanted " \| sed -e 's@ bind @ @' -e 's@ nsl @ @' -e 's@ util @ @'`
595	shift
596	libswanted="$*"
597	installusrbinperl="$undef"
598
599	# V5R1 doesn't have this (V5R2 does), without knowing
600	# which one we have it's safer to be pessimistic.
601	# Cwd will work fine even without fchdir(), but if
602	# V5R1 tries to use code compiled assuming fchdir(),
603	# lots of grief will issue forth from Cwd.
604	case "$d_fchdir" in
605	'') d_fchdir="$undef" ;;
606	esac
607	;;
608	esac
609
610	# EOF