[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
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}'`

	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_$(EXP)	 can it be auto-generated?
lddlflags="$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

# 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'`"
	        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 MB	115	esac
	116	nm_opt='-B'
	117
	118	# These functions don't work like Perl expects them to.
	119	d_setregid='undef'
	120	d_setreuid='undef'
	121
	122	# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
	123	#
	124	# Tell perl which symbols to export for dynamic linking.
	125	cccdlflags='none' # All AIX code is position independent
	126	cc_type=xlc # do not export to config.sh
	127	case "$cc" in
	128	gcc)
	129	cc_type=gcc
	130	ccdlflags='-Xlinker'
	131	if [ "X$gccversion" = "X" ]; then
	132	# Done too late in Configure if hinted
	133	gccversion=`$cc --version \| sed 's/.(GCC) //'`
	134	fi
	135	;;
	136
	137	) ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| grep -v '\.msg\.[A-Za-z_]\.' \| head -1 \| awk '{print $1,$2}'`
	138	case "$ccversion" in
	139	'') ccversion=`lslpp -L \| grep 'IBM C and C++ Compilers LUM$'`
	140	;;
	141
	142	......*) # Ahhrgg, more than one C compiler installed
	143	first_cc_path=`which ${cc:-cc}`
	144	case "$first_cc_path" in
	145	vac)
	146	cc_type=vac ;;
	147	/usr/bin/cc) # Check the symlink
	148	if [ -h $first_cc_path ] ; then
	149	ls -l $first_cc_path > reflect
	150	if grep -i vac reflect >/dev/null 2>&1 ; then
	151	cc_type=vac
	152	fi
	153	rm -f reflect
	154	fi
	155	;;
	156	esac
	157	ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| grep -i $cc_type \| head -1`
	158	;;
	159
	160	vac...)
	161	cc_type=vac
	162	;;
	163	esac
	164	ccversion=`echo "$ccversion" \| awk '{print $2}'`
	165
	166	case "$ccversion" in
	167	3.6.6.0)
	168	optimize='none'
	169	;;
	170
	171	4.4.0.0\|4.4.0.1\|4.4.0.2)
	172	cat >&4 <<EOF
	173	***
	174	*** This C compiler ($ccversion) is outdated.
	175	***
	176	*** Please upgrade to at least 4.4.0.3.
	177	***
	178	EOF
179	;;
180
181	5.0.0.0)
182	cat >&4 <<EOF
183	***
184	*** This C compiler ($ccversion) is known to have too many optimizer
185	*** bugs to compile a working Perl.
186	***
187	*** Consider upgrading your C compiler, or getting the GNU cc (gcc).
188	***
189	*** Cannot continue, aborting.
190	EOF
191	exit 1
192	;;
193
194	5.0.1.0)
195	cat >&4 <<EOF
196	***
197	*** This C compiler ($ccversion) is known to have optimizer problems
198	*** when compiling regcomp.c.
199	***
200	*** Disabling optimization for that file but consider upgrading
201	*** your C compiler.
202	***
203	EOF
204	regcomp_cflags='optimize='
205	;;
206	esac
88567e60 MB	207	case "$ccversion" in
	208	5*) usemallocwrap='n' ;; # causes panic in miniperl
	209	esac
b6d030a4 MB	210	esac
	211	# the required -bE:$installarchlib/CORE/perl.exp is added by
	212	# libperl.U (Configure) later.
	213
	214	# The first 3 options would not be needed if dynamic libs. could be linked
	215	# with the compiler instead of ld.
	216	# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
	217	# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
	218	# symbol: boot_$(EXP) can it be auto-generated?
	219	lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
	220
	221	case "$use64bitall" in
	222	$define\|true\|[yY]*) use64bitint="$define" ;;
	223	esac
	224
	225	case "$usemorebits" in
	226	$define\|true\|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
	227	esac
	228
	229	case $cc_type in
	230	vac\|xlc)
	231	case "$uselongdouble" in
	232	$define\|true\|[yY]*)
	233	ccflags="$ccflags -qlongdouble"
	234	libswanted="c128 $libswanted"
	235	lddlflags=`echo "$lddlflags " \| sed -e 's/ -lc / -lc128 -lc /'`
	236	;;
	237	esac
	238	esac
	239
	240	case "$cc" in
	241	gcc) ;;
	242	cc\|xlc) # cc should've been set by line 116 or so if empty.
	243	if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
	244	case ":$PATH:" in
	245	:/usr/vac/bin:) ;;
	246	*) if test ! -x /QOpenSys/usr/bin/$cc; then
	247	# The /QOpenSys/usr/bin/$cc saves us if we are
	248	# building natively in OS/400 PASE.
	249	cat >&4 <<EOF
	250
	251	***
	252	*** You either implicitly or explicitly specified an IBM C compiler,
	253	*** but you do not seem to have one in /usr/bin, but you seem to have
	254	*** the VAC installed in /usr/vac, but you do not have the /usr/vac/bin
	255	*** in your PATH. I suggest adding that and retrying Configure.
	256	***
	257	EOF
	258	exit 1
	259	fi
	260	;;
	261	esac
	262	fi
	263	;;
	264	esac
	265
	266	case "$ldlibpthname" in
	267	'') ldlibpthname=LIBPATH ;;
	268	esac
	269
	270	# AIX 4.2 (using latest patchlevels on 20001130) has a broken bind
	271	# library (getprotobyname and getprotobynumber are outversioned by
	272	# the same calls in libc, at least for xlc version 3...
	273	case "`oslevel`" in
274	4.2.1.*)
275	case "$ccversion" in # Don't know if needed for gcc
276	3.1.4.\|5.0.2.) # libswanted "bind ... c ..." => "... c bind ..."
277	set `echo X "$libswanted "\| sed -e 's/ bind\( .*\) \([cC]\) / \1 \2 bind /'`
278	shift
279	libswanted="$*"
280	;;
281	esac
282	;;
283	esac
284
285	# This script UU/usethreads.cbu will get 'called-back' by Configure
286	# after it has prompted the user for whether to use threads.
287	cat > UU/usethreads.cbu <<'EOCBU'
288	case "$usethreads" in
289	$define\|true\|[yY]*)
290	d_drand48_r='undef'
291	d_endgrent_r='undef'
292	d_endpwent_r='undef'
293	d_getgrent_r='undef'
294	d_getpwent_r='undef'
295	d_random_r='undef'
296	d_setgrent_r='undef'
297	d_setpwent_r='undef'
298	d_srand48_r='undef'
299	d_strerror_r='undef'
300
301	ccflags="$ccflags -DNEED_PTHREAD_INIT"
302	case "$cc" in
303	gcc)
304	ccflags="-D_THREAD_SAFE $ccflags"
305	;;
306	cc_r) ;;
307	cc\|xl[cC]\|xl[cC]_r)
308	echo >&4 "Switching cc to cc_r because of POSIX threads."
309	# xlc_r has been known to produce buggy code in AIX 4.3.2.
310	# (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
311	# --jhi@iki.fi
312	cc=cc_r
313
314	case "`oslevel`" in
315	4.2.1.*) i_crypt='undef' ;;
316	esac
317	;;
318	'')
319	cc=cc_r
320	;;
321	*)
322	cat >&4 <<EOM
323	*** For pthreads you should use the AIX C compiler cc_r.
324	*** (now your compiler was set to '$cc')
325	*** Cannot continue, aborting.
326	EOM
327	exit 1
328	;;
329	esac
330
331	# c_rify libswanted.
332	set `echo X "$libswanted "\| sed -e 's/ \([cC]\) / \1_r /g'`
333	shift
334	libswanted="$*"
335	# c_rify lddlflags.
336	set `echo X "$lddlflags "\| sed -e 's/ \(-l[cC]\) / \1_r /g'`
337	shift
338	lddlflags="$*"
339
340	# Insert pthreads to libswanted, before any libc or libC.
341	set `echo X "$libswanted "\| sed -e 's/ \([cC]_r\) / pthreads \1 /'`
342	shift
343	libswanted="$*"
344	# Insert pthreads to lddlflags, before any libc or libC.
345	set `echo X "$lddlflags " \| sed -e 's/ \(-l[cC]_r\) / -lpthreads \1 /'`
346	shift
347	lddlflags="$*"
348	;;
349	esac
350	EOCBU
351
352	# This script UU/uselargefiles.cbu will get 'called-back' by Configure
353	# after it has prompted the user for whether to use large files.
354	cat > UU/uselargefiles.cbu <<'EOCBU'
355	case "$uselargefiles" in
356	''\|$define\|true\|[yY]*)
357	# Configure should take care of use64bitint and use64bitall being
358	# defined before uselargefiles.cbu is consulted.
359	if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
360	# Keep these at the left margin.
361	ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
362	ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
363	else
364	# Keep these at the left margin.
365	ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
366	ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
367	fi
368
369	# _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
370	# insert(?) something to $ldflags so that later (in Configure) evaluating
371	# $ldflags causes a newline after the '-b64' (the result of the getconf).
372	# (nothing strange shows up in $ldflags even in hexdump;
373	# so it may be something (a bug) in the shell, instead?)
374	# Try it out: just uncomment the below line and rerun Configure:
375	# echo >&4 "AIX 4.3.1.0 $ldflags_uselargefiles mystery" ; exit 1
376	# Just don't ask me how AIX does it, I spent hours wondering.
377	# Therefore the line re-evaluating ldflags_uselargefiles: it seems to fix
378	# the whatever it was that AIX managed to break. --jhi
379	ldflags_uselargefiles="`echo $ldflags_uselargefiles`"
380	if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
381	# Keep this at the left margin.
382	libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
383	else
384	# Keep this at the left margin.
385	libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
386	fi
387
388	case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
389	'') ;;
390	*) ccflags="$ccflags $ccflags_uselargefiles"
391	ldflags="$ldflags $ldflags_uselargefiles"
392	libswanted="$libswanted $libswanted_uselargefiles"
393	;;
394	esac
395
396	case "$gccversion" in
397	'') ;;
398	*) # Remove xlc-specific -qflags.
399	ccflags="`echo $ccflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
400	ldflags="`echo $ldflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
401	# Move xlc-specific -bflags.
402	ccflags="`echo $ccflags \| sed -e 's@ -b@ -Wl,-b@g'`"
403	ldflags="`echo ' '$ldflags \| sed -e 's@ -b@ -Wl,-b@g'`"
404	lddlflags="`echo ' '$lddlflags \| sed -e 's@ -b@ -Wl,-b@g'`"
405	ld='gcc'
406	echo >&4 "(using ccflags $ccflags)"
407	echo >&4 "(using ldflags $ldflags)"
408	echo >&4 "(using lddlflags $lddlflags)"
409	;;
410	esac
411	;;
412	esac
413	EOCBU
414
415	# This script UU/use64bitint.cbu will get 'called-back' by Configure
416	# after it has prompted the user for whether to use 64 bit integers.
417	cat > UU/use64bitint.cbu <<'EOCBU'
418	case "$use64bitint" in
419	$define\|true\|[yY]*)
420	case "`oslevel`" in
421	4.[012].*)
422	cat >&4 <<EOM
423	AIX `oslevel` does not support 64-bit interfaces.
424	You should upgrade to at least AIX 4.3.
425	EOM
426	exit 1
427	;;
428	esac
429	;;
430	esac
431	EOCBU
432
433	cat > UU/use64bitall.cbu <<'EOCBU'
434	# This script UU/use64bitall.cbu will get 'called-back' by Configure
435	# after it has prompted the user for whether to be maximally 64-bitty.
436	case "$use64bitall" 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	echo " "
448	echo "Checking the CPU width of your hardware..." >&4
449	$cat >size.c <<EOCP
450	#include <stdio.h>
451	#include <sys/systemcfg.h>
452	int main (void)
453	{
454	printf ("%d\n", _system_configuration.width);
455	return (0);
456	}
457	EOCP
458	set size
459	if eval $compile_ok; then
460	qacpuwidth=`./size`
461	echo "You are running on $qacpuwidth bit hardware."
462	else
463	dflt="32"
464	echo " "
465	echo "(I can't seem to compile the test program. Guessing...)"
466	rp="What is the width of your CPU (in bits)?"
467	. ./myread
468	qacpuwidth="$ans"
469	fi
470	$rm -f size.c size
471	case "$qacpuwidth" in
472	32*)
473	cat >&4 <<EOM
474	Bzzzt! At present, you can only perform a
475	full 64-bit build on a 64-bit machine.
476	EOM
477	exit 1
478	;;
479	esac
480
481	qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
482	qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
483	# See jhi's comments above regarding this re-eval. I've
484	# seen similar weirdness in the form of:
485	#
486	# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
487	#
488	# error messages from 'cc -E' invocation. Again, the offending
489	# string is simply not detectable by any means. Since it doesn't
490	# do any harm, I didn't pursue it. -- sh
491	qaldflags="`echo $qaldflags`"
492	qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
493	# -q32 and -b32 may have been set by uselargefiles or user.
494	# Remove them.
495	ccflags="`echo $ccflags \| sed -e 's@-q32@@'`"
496	ldflags="`echo $ldflags \| sed -e 's@-b32@@'`"
497	# Tell archiver to use large format. Unless we remove 'ar'
498	# from 'trylist', the Configure script will just reset it to 'ar'
499	# immediately prior to writing config.sh. This took me hours
500	# to figure out.
501	trylist="`echo $trylist \| sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
502	ar="ar -X64"
503	nm_opt="-X64 $nm_opt"
504	# Note: Placing the 'qacflags' variable into the 'ldflags' string
505	# is NOT a typo. ldflags is passed to the C compiler for final
506	# linking, and it wants -q64 (-b64 is for ld only!).
507	case "$qacflags$qaldflags$qalibs" in
508	'') ;;
509	*) ccflags="$ccflags $qacflags"
510	ldflags="$ldflags $qacflags"
511	lddlflags="$qaldflags $lddlflags"
512	libswanted="$libswanted $qalibs"
513	;;
514	esac
515	case "$ccflags" in
516	-DUSE_64_BIT_ALL) ;;
517	*) ccflags="$ccflags -DUSE_64_BIT_ALL";;
518	esac
519	case "$archname64" in
520	''\|64*) archname64=64all ;;
521	esac
522	longsize="8"
523	qacflags=''
524	qaldflags=''
525	qalibs=''
526	qacpuwidth=''
527	;;
528	esac
529	EOCBU
530
531	if test $usenativedlopen = 'true' ; then
532	ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
533	case "$cc" in
534	gcc) ldflags="$ldflags -Wl,-brtl" ;;
535	*) ldflags="$ldflags -brtl" ;;
536	esac
537	else
538	case `oslevel` in
539	4.2.*) ;; # libC_r has broke gettimeofday
540	*) # If the C++ libraries, libC and libC_r, are available we will
541	# prefer them over the vanilla libc, because the libC contain
542	# loadAndInit() and terminateAndUnload() which work correctly
543	# with C++ statics while libc load() and unload() do not. See
544	# ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
545	# usethreads.cbu, if needed.
546	if test -f /lib/libC.a -a X"`$cc -v 2>&1 \| grep gcc`" = X; then
547	# Cify libswanted.
548	set `echo X "$libswanted "\| sed -e 's/ c / C c /'`
549	shift
550	libswanted="$*"
551	# Cify lddlflags.
552	set `echo X "$lddlflags "\| sed -e 's/ -lc / -lC -lc /'`
553	shift
554	lddlflags="$*"
555	fi
556	esac
557	fi
558
559	case "$PASE" in
560	define)
561	case "$prefix" in
562	'') prefix=/QOpenSys/perl ;;
563	esac
564	cat >&4 <<EOF
565
566	***
567	*** You seem to be compiling in AIX for the OS/400 PASE environment.
568	*** I'm not going to use the AIX bind, nsl, and possible util libraries, then.
569	*** I'm also not going to install perl as /usr/bin/perl.
570	*** Perl will be installed under $prefix.
571	*** For instructions how to install this build from AIX to PASE,
572	*** see the file README.os400. Accept the "aix" for the question
573	*** about "Operating system name".
574	***
575	EOF
576	set `echo " $libswanted " \| sed -e 's@ bind @ @' -e 's@ nsl @ @' -e 's@ util @ @'`
577	shift
578	libswanted="$*"
579	installusrbinperl="$undef"
580
581	# V5R1 doesn't have this (V5R2 does), without knowing
582	# which one we have it's safer to be pessimistic.
583	# Cwd will work fine even without fchdir(), but if
584	# V5R1 tries to use code compiled assuming fchdir(),
585	# lots of grief will issue forth from Cwd.
586	case "$d_fchdir" in
587	'') d_fchdir="$undef" ;;
588	esac
589	;;
590	esac
591
592	# EOF