[perl5.git] / hints / aix.sh

# hints/aix.sh
# AIX 3.x.x hints thanks to Wayne Scott <wscott@ichips.intel.com>
# AIX 4.1 hints thanks to Christopher Chan-Nui <channui@austin.ibm.com>.
# AIX 4.1 pthreading by Christopher Chan-Nui <channui@austin.ibm.com> and
#	  Jarkko Hietaniemi <jhi@iki.fi>.
# 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@lafcol.lafayette.edu>

#
# Contact dfavor@corridor.com for any of the following:
#
#    - AIX 43x and above support
#    - gcc + threads support
#    - socks support
#
# Apr 99 changes:
#
#    - use nm in AIX 43x and above
#    - gcc + threads now builds
#    [(added support for socks) Jul 99 SOCKS support rewritten]
#
# Notes:
#
#    - shared libperl support is tricky. if ever libperl.a ends up
#      in /usr/local/lib/* it can override any subsequent builds of
#      that same perl release. to make sure you know where the shared
#      libperl.a is coming from do a 'dump -Hv perl' and check all the
#      library search paths in the loader header.
#
#      it would be nice to warn the user if a libperl.a exists that is
#      going to override the current build, but that would be complex.
#
#      better yet, a solid fix for this situation should be developed.
#

# Configure finds setrgid and setruid, but they're useless.  The man
# pages state:
#    setrgid: The EPERM error code is always returned.
#    setruid: The EPERM error code is always returned. Processes cannot
#	      reset only their real user IDs.
d_setrgid='undef'
d_setruid='undef'

alignbytes=8

case "$usemymalloc" in
'')  usemymalloc='n' ;;
esac

# Intuiting the existence of system calls under AIX is difficult,
# at best; the safest technique is to find them empirically.

# AIX 4.3.* and above default to using nm for symbol extraction
case "$osvers" in
   3.*|4.1.*|4.2.*)
      usenm='undef'
      ;;
   *)
      usenm='true'
      ;;
esac

so="a"
# 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

# Trying to set this breaks the POSIX.c compilation

# Make setsockopt work correctly.  See man page.
# ccflags='-D_BSD=44'

# uname -m output is too specific and not appropriate here
case "$archname" in
'') archname="$osname" ;;
esac

cc=${cc:-cc}

case "$osvers" in
3*) d_fchmod=undef
    ccflags="$ccflags -D_ALL_SOURCE"
    ;;
*)  # These hints at least work for 4.x, possibly other systems too.
    ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
    case "$cc" in
     *gcc*) ;;
     *) ccflags="$ccflags -qmaxmem=16384" ;;
    esac
    nm_opt='-B'
    ;;
esac

# These functions don't work like Perl expects them to.
d_setregid='undef'
d_setreuid='undef'

# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
#
# Tell perl which symbols to export for dynamic linking.
case "$cc" in
*gcc*) ccdlflags='-Xlinker' ;;
esac
# the required -bE:$installarchlib/CORE/perl.exp is added by
# libperl.U (Configure) later.

case "$ldlibpthname" in
'') ldlibpthname=LIBPATH ;;
esac

# The first 3 options would not be needed if dynamic libs. could be linked
# with the compiler instead of ld.
# -bI:$(PERL_INC)/perl.exp  Read the exported symbols from the perl binary
# -bE:$(BASEEXT).exp	    Export these symbols.  This file contains only one
#			    symbol: boot_$(EXP)	 can it be auto-generated?
case "$osvers" in
3*) 
    lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
    ;;
*) 
    lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -b noentry -lc"
    ;;
esac

# This script UU/usethreads.cbu will get 'called-back' by Configure 
# after it has prompted the user for whether to use threads.
cat > UU/usethreads.cbu <<'EOCBU'
case "$usethreads" in
$define|true|[yY]*)
	ccflags="$ccflags -DNEED_PTHREAD_INIT"
	case "$cc" in
	gcc) ;;
	cc_r) ;;
	cc|xl[cC]_r) 
	    echo >&4 "Switching cc to cc_r because of POSIX threads."
	    # xlc_r has been known to produce buggy code in AIX 4.3.2.
	    # (e.g. pragma/overload core dumps)	 Let's suspect xlC_r, too.
	    # --jhi@iki.fi
	    cc=cc_r
	    ;;
	'') 
	    cc=cc_r
	    ;;
	*)
	    cat >&4 <<EOM
For pthreads you should use the AIX C compiler cc_r.
(now your compiler was set to '$cc')
Cannot continue, aborting.
EOM
	    exit 1
	    ;;
	esac

	# 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/ \([cC]\) / 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]*)
# Keep these at the left margin.
ccflags_largefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
ldflags_largefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
	# _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 in the shell, instead?)
	# Try it out: just uncomment the below line and rerun Configure:
# echo >&4 "AIX 4.3.1.0 $ldflags_largefiles mystery" ; exit 1
	# Just don't ask me how AIX does it, I spent hours wondering.
	# Therefore the line re-evaluating ldflags_largefiles: it seems to fix
	# the whatever it was that AIX managed to break. --jhi
	ldflags_largefiles="`echo $ldflags_largefiles`"
# Keep this at the left margin.
libswanted_largefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
	case "$ccflags_largefiles$ldflags_largefiles$libs_largefiles" in
	'');;
	*) ccflags="$ccflags $ccflags_largefiles"
	   ldflags="$ldflags $ldflags_largefiles"
	   libswanted="$libswanted $libswanted_largefiles"
	   ;;
	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
	    3.*|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
	    3.*|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 $nm_opt"
	    # Note: Placing the 'qacflags' variable into the 'ldflags' string
	    # is NOT a typo.  ldqalags is passed to the C compiler for final
	    # linking, and it wants -q64 (-b64 is for ld only!).
	    case "$qacflags$qaldflags$qalibs" in
	    '');;
	    *) ccflags="$ccflags $qacflags"
	       ldflags="$ldflags $qacflags"
	       lddqalags="$qaldflags $lddqalags"
	       libswanted="$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"
	    # Don't try backwards compatibility
	    bincompat="$undef"
	    d_bincompat5005="$undef"
	    qacflags=''
	    qaldflags=''
	    qalibs=''
	    qacpuwidth=''
	    ;;
esac
EOCBU

cat > UU/uselongdouble.cbu <<'EOCBU'
# This script UU/uselongdouble.cbu will get 'called-back' by Configure 
# after it has prompted the user for whether to use long doubles.
case "$uselongdouble" in
$define|true|[yY]*)
	ccflags="$ccflags -qlongdouble"
	# The explicit cc128, xlc128, xlC128 are not needed,
	# the -qlongdouble should do the trick. --jhi
	d_Gconvert='sprintf((b),"%.*llg",(n),(x))'
	;;
esac
EOCBU

# 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

# EOF
Commit	Line	Data
1aef975c AD	1	# hints/aix.sh
	2	# AIX 3.x.x hints thanks to Wayne Scott <wscott@ichips.intel.com>
	3	# AIX 4.1 hints thanks to Christopher Chan-Nui <channui@austin.ibm.com>.
52e1cb5e	4	# AIX 4.1 pthreading by Christopher Chan-Nui <channui@austin.ibm.com> and
4e774c84	5	# Jarkko Hietaniemi <jhi@iki.fi>.
19e194ad	6	# AIX 4.3.x LP64 build by Steven Hirsch <hirschs@btv.ibm.com>
1aef975c AD	7	# Merged on Mon Feb 6 10:22:35 EST 1995 by
	8	# Andy Dougherty <doughera@lafcol.lafayette.edu>
	9
bbc711f9 DF	10	#
	11	# Contact dfavor@corridor.com for any of the following:
	12	#
	13	# - AIX 43x and above support
	14	# - gcc + threads support
	15	# - socks support
	16	#
	17	# Apr 99 changes:
	18	#
	19	# - use nm in AIX 43x and above
	20	# - gcc + threads now builds
29209bc5	21	# [(added support for socks) Jul 99 SOCKS support rewritten]
bbc711f9 DF	22	#
	23	# Notes:
	24	#
	25	# - shared libperl support is tricky. if ever libperl.a ends up
	26	# in /usr/local/lib/* it can override any subsequent builds of
	27	# that same perl release. to make sure you know where the shared
	28	# libperl.a is coming from do a 'dump -Hv perl' and check all the
	29	# library search paths in the loader header.
	30	#
	31	# it would be nice to warn the user if a libperl.a exists that is
	32	# going to override the current build, but that would be complex.
	33	#
	34	# better yet, a solid fix for this situation should be developed.
	35	#
1aef975c AD	36
	37	# Configure finds setrgid and setruid, but they're useless. The man
	38	# pages state:
	39	# setrgid: The EPERM error code is always returned.
	40	# setruid: The EPERM error code is always returned. Processes cannot
4e774c84	41	# reset only their real user IDs.
a0d0e21e LW	42	d_setrgid='undef'
a0d0e21e LW	43	d_setruid='undef'
1aef975c	44
5f3774a9	45	alignbytes=8
a5f75d66	46
86959918 JH	47	case "$usemymalloc" in
	48	'') usemymalloc='n' ;;
	49	esac
bbc711f9 DF	50
	51	# Intuiting the existence of system calls under AIX is difficult,
	52	# at best; the safest technique is to find them empirically.
	53
	54	# AIX 4.3.* and above default to using nm for symbol extraction
	55	case "$osvers" in
	56	3.\|4.1.\|4.2.*)
	57	usenm='undef'
	58	;;
	59	*)
	60	usenm='true'
	61	;;
	62	esac
cc628cc3	63
3c321fdc	64	so="a"
0d9ec2f4 JH	65	# AIX itself uses .o (libc.o) but we prefer compatibility
	66	# with the rest of the world and with rest of the scripting
	67	# languages (Tcl, Python) and related systems (SWIG).
	68	# Stephanie Beals <bealzy@us.ibm.com>
	69	dlext="so"
3c321fdc	70
19e194ad JH	71	# Take possible hint from the environment. If 32-bit is set in the
	72	# environment, we can override it later. If set for 64, the
	73	# 'sizeof' test sees a native 64-bit architecture and never looks back.
	74	case "$OBJECT_MODE" in
	75	32)
	76	cat >&4 <<EOF
	77
	78	You have OBJECT_MODE=32 set in the environment.
	79	I take this as a hint you do not want to
	80	build for a 64-bit address space. You will be
	81	given the opportunity to change this later.
	82	EOF
	83	;;
	84	64)
	85	cat >&4 <<EOF
	86
	87	You have OBJECT_MODE=64 set in the environment.
	88	This forces a full 64-bit build. If that is
	89	not what you intended, please terminate this
	90	program, unset it and restart.
	91	EOF
	92	;;
	93	*) ;;
	94	esac
	95
bbc711f9 DF	96	# Trying to set this breaks the POSIX.c compilation
bbc711f9 DF	97
1aef975c AD	98	# Make setsockopt work correctly. See man page.
	99	# ccflags='-D_BSD=44'
	100
	101	# uname -m output is too specific and not appropriate here
	102	case "$archname" in
	103	'') archname="$osname" ;;
	104	esac
	105
bd9b35c9 JH	106	cc=${cc:-cc}
bd9b35c9 JH	107
1aef975c AD	108	case "$osvers" in
1aef975c AD	109	3*) d_fchmod=undef
fc2c2f48	110	ccflags="$ccflags -D_ALL_SOURCE"
1aef975c AD	111	;;
1aef975c AD	112	*) # These hints at least work for 4.x, possibly other systems too.
fc2c2f48	113	ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
80589958	114	case "$cc" in
80589958	115	gcc) ;;
86959918	116	*) ccflags="$ccflags -qmaxmem=16384" ;;
80589958	117	esac
1aef975c	118	nm_opt='-B'
1aef975c AD	119	;;
	120	esac
	121
bbc711f9 DF	122	# These functions don't work like Perl expects them to.
	123	d_setregid='undef'
	124	d_setreuid='undef'
	125
1aef975c	126	# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
a0d0e21e LW	127	#
a0d0e21e LW	128	# Tell perl which symbols to export for dynamic linking.
4633a7c4	129	case "$cc" in
5f9d9a17	130	gcc) ccdlflags='-Xlinker' ;;
4633a7c4	131	esac
5f9d9a17 ME	132	# the required -bE:$installarchlib/CORE/perl.exp is added by
5f9d9a17 ME	133	# libperl.U (Configure) later.
a0d0e21e	134
5cf1d1f1 JH	135	case "$ldlibpthname" in
	136	'') ldlibpthname=LIBPATH ;;
	137	esac
	138
a0d0e21e LW	139	# The first 3 options would not be needed if dynamic libs. could be linked
a0d0e21e LW	140	# with the compiler instead of ld.
42793c05	141	# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
4e774c84 SB	142	# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
4e774c84 SB	143	# symbol: boot_$(EXP) can it be auto-generated?
c07a80fd	144	case "$osvers" in
c07a80fd	145	3*)
6c79d5f6	146	lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
c07a80fd	147	;;
c07a80fd	148	*)
6c79d5f6	149	lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -b noentry -lc"
b691c02f	150	;;
c07a80fd	151	esac
52e1cb5e	152
104d25b7 JH	153	# This script UU/usethreads.cbu will get 'called-back' by Configure
	154	# after it has prompted the user for whether to use threads.
	155	cat > UU/usethreads.cbu <<'EOCBU'
	156	case "$usethreads" in
	157	$define\|true\|[yY]*)
4e774c84 SB	158	ccflags="$ccflags -DNEED_PTHREAD_INIT"
	159	case "$cc" in
	160	gcc) ;;
	161	cc_r) ;;
	162	cc\|xl[cC]_r)
bbc711f9 DF	163	echo >&4 "Switching cc to cc_r because of POSIX threads."
bbc711f9 DF	164	# xlc_r has been known to produce buggy code in AIX 4.3.2.
4e774c84	165	# (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
bbc711f9 DF	166	# --jhi@iki.fi
bbc711f9 DF	167	cc=cc_r
4e774c84 SB	168	;;
4e774c84 SB	169	'')
bbc711f9	170	cc=cc_r
4e774c84 SB	171	;;
	172	*)
	173	cat >&4 <<EOM
bbc711f9	174	For pthreads you should use the AIX C compiler cc_r.
549a6b10	175	(now your compiler was set to '$cc')
104d25b7 JH	176	Cannot continue, aborting.
104d25b7 JH	177	EOM
4e774c84	178	exit 1
104d25b7	179	;;
4e774c84 SB	180	esac
4e774c84 SB	181
c88be79f JH	182	# c_rify libswanted.
	183	set `echo X "$libswanted "\| sed -e 's/ \([cC]\) / \1_r /g'`
	184	shift
	185	libswanted="$*"
	186	# c_rify lddlflags.
	187	set `echo X "$lddlflags "\| sed -e 's/ \(-l[cC]\) / \1_r /g'`
	188	shift
	189	lddlflags="$*"
	190
	191	# Insert pthreads to libswanted, before any libc or libC.
	192	set `echo X "$libswanted "\| sed -e 's/ \([cC]\) / pthreads \1 /'`
	193	shift
	194	libswanted="$*"
	195	# Insert pthreads to lddlflags, before any libc or libC.
	196	set `echo X "$lddlflags " \| sed -e 's/ \(-l[cC]\) / -lpthreads \1 /'`
	197	shift
	198	lddlflags="$*"
	199
104d25b7 JH	200	;;
	201	esac
	202	EOCBU
fa9667c9	203
8a647129	204	# This script UU/uselargefiles.cbu will get 'called-back' by Configure
bd9b35c9	205	# after it has prompted the user for whether to use large files.
8a647129	206	cat > UU/uselargefiles.cbu <<'EOCBU'
bd9b35c9	207	case "$uselargefiles" in
10cc9d2a	208	''\|$define\|true\|[yY]*)
9422c00b JH	209	# Keep these at the left margin.
	210	ccflags_largefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
	211	ldflags_largefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
6b8eaf93 JH	212	# _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
	213	# insert(?) something to $ldflags so that later (in Configure) evaluating
	214	# $ldflags causes a newline after the '-b64' (the result of the getconf).
	215	# (nothing strange shows up in $ldflags even in hexdump;
	216	# so it may be something in the shell, instead?)
	217	# Try it out: just uncomment the below line and rerun Configure:
9422c00b	218	# echo >&4 "AIX 4.3.1.0 $ldflags_largefiles mystery" ; exit 1
6b8eaf93	219	# Just don't ask me how AIX does it, I spent hours wondering.
9422c00b	220	# Therefore the line re-evaluating ldflags_largefiles: it seems to fix
6b8eaf93	221	# the whatever it was that AIX managed to break. --jhi
9422c00b JH	222	ldflags_largefiles="`echo $ldflags_largefiles`"
	223	# Keep this at the left margin.
	224	libswanted_largefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
	225	case "$ccflags_largefiles$ldflags_largefiles$libs_largefiles" in
bd9b35c9	226	'');;
9422c00b JH	227	*) ccflags="$ccflags $ccflags_largefiles"
	228	ldflags="$ldflags $ldflags_largefiles"
	229	libswanted="$libswanted $libswanted_largefiles"
bd9b35c9 JH	230	;;
bd9b35c9 JH	231	esac
bd9b35c9 JH	232	;;
	233	esac
	234	EOCBU
6b8eaf93	235
10cc9d2a	236	# This script UU/use64bitint.cbu will get 'called-back' by Configure
de6124c8	237	# after it has prompted the user for whether to use 64 bit integers.
10cc9d2a JH	238	cat > UU/use64bitint.cbu <<'EOCBU'
10cc9d2a JH	239	case "$use64bitint" in
efeaa891	240	$define\|true\|[yY]*)
2d4389e4	241	case "`oslevel`" in
efeaa891 JH	242	3.\|4.[012].)
efeaa891 JH	243	cat >&4 <<EOM
2d4389e4	244	AIX `oslevel` does not support 64-bit interfaces.
19e194ad	245	You should upgrade to at least AIX 4.3.
efeaa891 JH	246	EOM
	247	exit 1
	248	;;
	249	esac
19e194ad JH	250	;;
	251	esac
	252	EOCBU
	253
19e194ad	254	cat > UU/use64bitall.cbu <<'EOCBU'
de6124c8 JH	255	# This script UU/use64bitall.cbu will get 'called-back' by Configure
de6124c8 JH	256	# after it has prompted the user for whether to be maximally 64-bitty.
19e194ad JH	257	case "$use64bitall" in
	258	$define\|true\|[yY]*)
	259	case "`oslevel`" in
	260	3.\|4.[012].)
	261	cat >&4 <<EOM
	262	AIX `oslevel` does not support 64-bit interfaces.
	263	You should upgrade to at least AIX 4.3.
	264	EOM
	265	exit 1
	266	;;
	267	esac
	268	echo " "
	269	echo "Checking the CPU width of your hardware..." >&4
	270	$cat >size.c <<EOCP
	271	#include <stdio.h>
	272	#include <sys/systemcfg.h>
	273	int main (void)
	274	{
	275	printf("%d\n",_system_configuration.width);
	276	return(0);
	277	}
	278	EOCP
	279	set size
	280	if eval $compile_ok; then
9422c00b JH	281	qacpuwidth=`./size`
9422c00b JH	282	echo "You are running on $qacpuwidth bit hardware."
19e194ad JH	283	else
	284	dflt="32"
	285	echo " "
	286	echo "(I can't seem to compile the test program. Guessing...)"
	287	rp="What is the width of your CPU (in bits)?"
	288	. ./myread
9422c00b	289	qacpuwidth="$ans"
19e194ad JH	290	fi
19e194ad JH	291	$rm -f size.c size
9422c00b	292	case "$qacpuwidth" in
19e194ad JH	293	32*)
	294	cat >&4 <<EOM
	295	Bzzzt! At present, you can only perform a
	296	full 64-bit build on a 64-bit machine.
	297	EOM
	298	exit 1
	299	;;
	300	esac
9422c00b JH	301	qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
9422c00b JH	302	qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
19e194ad JH	303	# See jhi's comments above regarding this re-eval. I've
	304	# seen similar weirdness in the form of:
	305	#
	306	# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
	307	#
	308	# error messages from 'cc -E' invocation. Again, the offending
	309	# string is simply not detectable by any means. Since it doesn't
	310	# do any harm, I didn't pursue it. -- sh
9422c00b JH	311	qaldflags="`echo $qaldflags`"
9422c00b JH	312	qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
8a647129 JH	313	# -q32 and -b32 may have been set by uselargefiles or user.
8a647129 JH	314	# Remove them.
19e194ad JH	315	ccflags="`echo $ccflags \| sed -e 's@-q32@@'`"
	316	ldflags="`echo $ldflags \| sed -e 's@-b32@@'`"
	317	# Tell archiver to use large format. Unless we remove 'ar'
	318	# from 'trylist', the Configure script will just reset it to 'ar'
	319	# immediately prior to writing config.sh. This took me hours
	320	# to figure out.
bab3591f	321	trylist="`echo $trylist \| sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
19e194ad JH	322	ar="ar -X64"
19e194ad JH	323	nm_opt="-X64 $nm_opt"
9422c00b JH	324	# Note: Placing the 'qacflags' variable into the 'ldflags' string
9422c00b JH	325	# is NOT a typo. ldqalags is passed to the C compiler for final
19e194ad	326	# linking, and it wants -q64 (-b64 is for ld only!).
9422c00b	327	case "$qacflags$qaldflags$qalibs" in
19e194ad	328	'');;
9422c00b JH	329	*) ccflags="$ccflags $qacflags"
	330	ldflags="$ldflags $qacflags"
	331	lddqalags="$qaldflags $lddqalags"
	332	libswanted="$libswanted $qalibs"
19e194ad JH	333	;;
	334	esac
	335	case "$ccflags" in
	336	-DUSE_64_BIT_ALL) ;;
	337	*) ccflags="$ccflags -DUSE_64_BIT_ALL";;
	338	esac
	339	case "$archname64" in
	340	''\|64*) archname64=64all ;;
	341	esac
	342	longsize="8"
	343	# Don't try backwards compatibility
	344	bincompat="$undef"
	345	d_bincompat5005="$undef"
9422c00b JH	346	qacflags=''
	347	qaldflags=''
	348	qalibs=''
	349	qacpuwidth=''
efeaa891 JH	350	;;
	351	esac
	352	EOCBU
5b877257	353
de6124c8	354	cat > UU/uselongdouble.cbu <<'EOCBU'
d9b3e12d	355	# This script UU/uselongdouble.cbu will get 'called-back' by Configure
2d4389e4	356	# after it has prompted the user for whether to use long doubles.
d9b3e12d JH	357	case "$uselongdouble" in
	358	$define\|true\|[yY]*)
	359	ccflags="$ccflags -qlongdouble"
4e774c84 SB	360	# The explicit cc128, xlc128, xlC128 are not needed,
4e774c84 SB	361	# the -qlongdouble should do the trick. --jhi
65f19062	362	d_Gconvert='sprintf((b),"%.*llg",(n),(x))'
d9b3e12d JH	363	;;
	364	esac
	365	EOCBU
	366
c88be79f JH	367	# If the C++ libraries, libC and libC_r, are available we will prefer them
c88be79f JH	368	# over the vanilla libc, because the libC contain loadAndInit() and
4e774c84 SB	369	# terminateAndUnload() which work correctly with C++ statics while libc
4e774c84 SB	370	# load() and unload() do not. See ext/DynaLoader/dl_aix.xs.
c88be79f	371	# The C-to-C_r switch is done by usethreads.cbu, if needed.
0903b405	372	if test -f /lib/libC.a -a X"`$cc -v 2>&1 \| grep gcc`" = X; then
e32161bd JH	373	# Cify libswanted.
	374	set `echo X "$libswanted "\| sed -e 's/ c / C c /'`
	375	shift
	376	libswanted="$*"
	377	# Cify lddlflags.
	378	set `echo X "$lddlflags "\| sed -e 's/ -lc / -lC -lc /'`
	379	shift
	380	lddlflags="$*"
c88be79f	381	fi
4e774c84	382
5b877257	383	# EOF