[p5sagit/p5-mst-13.2.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 "$osvers" in
   3.*|4.1.*|4.2.*)
      case "$usenm" in
	  '') usenm='undef'
	  esac
      case "$usenativedlopen" in
	  '') usenativedlopen='false'
	  esac
      ;;
   *)
      case "$usenm" in
	  '') usenm='true'
	  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

# 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 -qnoansialias" ;;
    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.
cccdlflags='none'      # All AIX code is position independent
cc_type=xlc
case "$cc" in
*gcc*)
   cc_type=gcc
   ccdlflags='-Xlinker' ;;
*) ccversion=`lslpp -L | grep 'C for AIX Compiler$' | awk '{print $2}'`
   case "$ccversion" in
     '') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$' | awk '{print $2}'`
	 ;;
     *.*.*.*.*.*.*)		# 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 | awk '{print $2}' | head -1`
	 ;;
     esac
   case "$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 ($ccversion) is known to have optimizer problems
*** when compiling regcomp.c.
***
*** Disabling optimization for that file but consider upgrading
*** your C compiler.
***
EOF
regcomp_cflags='optimize='
	;;
     esac
esac
# the required -bE:$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 -bnoentry -lc"
    ;;
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
$define|true|[yY]*)
	ccflags="$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/ \([cC]_r\) / 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
	'') ;;
	*)
	cat >&4 <<EOM

*** Warning: gcc in AIX might not work with the largefile support of Perl
*** (default since 5.6.0), this combination hasn't been tested.
*** I will try, though.

EOM
	# Remove xlc-spefific -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 xld-spefific -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
	    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 $nm_opt"
	    # Note: Placing the 'qacflags' variable into the 'ldflags' string
	    # is NOT a typo.  ldflags is passed to the C compiler for final
	    # linking, and it wants -q64 (-b64 is for ld only!).
	    case "$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"
	    # 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]*)
        # -qlongdouble for cc taken out on 20010522 cause it
        # causes more trouble than it does any good --hmb
        d_Gconvert='sprintf((b),"%.*llg",((int)(n)),(x))'
	;;
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

# EOF
Commit	Line	Data
1aef975c	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	7	# Merged on Mon Feb 6 10:22:35 EST 1995 by
	8	# Andy Dougherty <doughera@lafcol.lafayette.edu>
	9
bbc711f9	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	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	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	42	d_setrgid='undef'
a0d0e21e	43	d_setruid='undef'
1aef975c	44
5f3774a9	45	alignbytes=8
a5f75d66	46
86959918	47	case "$usemymalloc" in
	48	'') usemymalloc='n' ;;
	49	esac
bbc711f9	50
	51	# Intuiting the existence of system calls under AIX is difficult,
	52	# at best; the safest technique is to find them empirically.
	53
	54	# AIX 4.3.* and above default to using nm for symbol extraction
	55	case "$osvers" in
56dbb940	56	3.\|4.1.\|4.2.*)
	57	case "$usenm" in
	58	'') usenm='undef'
	59	esac
	60	case "$usenativedlopen" in
	61	'') usenativedlopen='false'
	62	esac
bbc711f9	63	;;
bbc711f9	64	*)
56dbb940	65	case "$usenm" in
	66	'') usenm='true'
	67	esac
	68	case "$usenativedlopen" in
	69	'') usenativedlopen='true'
	70	esac
bbc711f9	71	;;
bbc711f9	72	esac
cc628cc3	73
3c321fdc	74	so="a"
0d9ec2f4	75	# AIX itself uses .o (libc.o) but we prefer compatibility
	76	# with the rest of the world and with rest of the scripting
	77	# languages (Tcl, Python) and related systems (SWIG).
	78	# Stephanie Beals <bealzy@us.ibm.com>
	79	dlext="so"
3c321fdc	80
19e194ad	81	# Take possible hint from the environment. If 32-bit is set in the
	82	# environment, we can override it later. If set for 64, the
	83	# 'sizeof' test sees a native 64-bit architecture and never looks back.
	84	case "$OBJECT_MODE" in
	85	32)
	86	cat >&4 <<EOF
	87
	88	You have OBJECT_MODE=32 set in the environment.
	89	I take this as a hint you do not want to
	90	build for a 64-bit address space. You will be
	91	given the opportunity to change this later.
	92	EOF
	93	;;
	94	64)
	95	cat >&4 <<EOF
	96
	97	You have OBJECT_MODE=64 set in the environment.
	98	This forces a full 64-bit build. If that is
	99	not what you intended, please terminate this
	100	program, unset it and restart.
	101	EOF
	102	;;
	103	*) ;;
	104	esac
	105
bbc711f9	106	# Trying to set this breaks the POSIX.c compilation
bbc711f9	107
1aef975c	108	# Make setsockopt work correctly. See man page.
	109	# ccflags='-D_BSD=44'
	110
	111	# uname -m output is too specific and not appropriate here
	112	case "$archname" in
	113	'') archname="$osname" ;;
	114	esac
	115
bd9b35c9	116	cc=${cc:-cc}
bd9b35c9	117
1aef975c	118	case "$osvers" in
1aef975c	119	3*) d_fchmod=undef
fc2c2f48	120	ccflags="$ccflags -D_ALL_SOURCE"
1aef975c	121	;;
1aef975c	122	*) # These hints at least work for 4.x, possibly other systems too.
fc2c2f48	123	ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
80589958	124	case "$cc" in
80589958	125	gcc) ;;
8437356b	126	*) ccflags="$ccflags -qmaxmem=16384 -qnoansialias" ;;
80589958	127	esac
1aef975c	128	nm_opt='-B'
1aef975c	129	;;
	130	esac
	131
bbc711f9	132	# These functions don't work like Perl expects them to.
	133	d_setregid='undef'
	134	d_setreuid='undef'
	135
1aef975c	136	# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
a0d0e21e	137	#
a0d0e21e	138	# Tell perl which symbols to export for dynamic linking.
b0f9136b	139	cccdlflags='none' # All AIX code is position independent
851f49a8	140	cc_type=xlc
4633a7c4	141	case "$cc" in
851f49a8	142	gcc)
	143	cc_type=gcc
	144	ccdlflags='-Xlinker' ;;
6b356c8e	145	*) ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| awk '{print $2}'`
6b356c8e	146	case "$ccversion" in
8d4151d3	147	'') ccversion=`lslpp -L \| grep 'IBM C and C++ Compilers LUM$' \| awk '{print $2}'`
851f49a8	148	;;
	149	......*) # Ahhrgg, more than one C compiler installed
	150	first_cc_path=`which ${cc:-cc}`
	151	case "$first_cc_path" in
	152	vac)
	153	cc_type=vac ;;
	154	/usr/bin/cc) # Check the symlink
	155	if [ -h $first_cc_path ] ; then
	156	ls -l $first_cc_path > reflect
	157	if grep -i vac reflect >/dev/null 2>&1 ; then
	158	cc_type=vac
	159	fi
	160	rm -f reflect
	161	fi
	162	;;
	163	esac
	164	ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| grep -i $cc_type \| awk '{print $2}' \| head -1`
	165	;;
8d4151d3	166	esac
	167	case "$ccversion" in
	168	3.6.6.0)
	169	optimize='none'
	170	;;
6b356c8e	171	4.4.0.0\|4.4.0.1\|4.4.0.2)
b7a20417	172	cat >&4 <<EOF
	173	***
	174	*** This C compiler ($ccversion) is outdated.
	175	***
	176	*** Please upgrade to at least 4.4.0.3.
	177	***
	178	EOF
	179	;;
2973cfbe	180	5.0.0.0)
	181	cat >&4 <<EOF
	182	***
201c2286	183	*** This C compiler ($ccversion) is known to have too many optimizer
201c2286	184	*** bugs to compile a working Perl.
2973cfbe	185	***
201c2286	186	*** Consider upgrading your C compiler, or getting the GNU cc (gcc).
2973cfbe	187	***
201c2286	188	*** Cannot continue, aborting.
2973cfbe	189	EOF
201c2286	190	exit 1
2973cfbe	191	;;
72f70c99	192	5.0.1.0)
b7a20417	193	cat >&4 <<EOF
	194	***
	195	*** This C compiler ($ccversion) is known to have optimizer problems
	196	*** when compiling regcomp.c.
	197	***
	198	*** Disabling optimization for that file but consider upgrading
	199	*** your C compiler.
	200	***
	201	EOF
	202	regcomp_cflags='optimize='
6b356c8e	203	;;
6b356c8e	204	esac
4633a7c4	205	esac
5f9d9a17	206	# the required -bE:$installarchlib/CORE/perl.exp is added by
5f9d9a17	207	# libperl.U (Configure) later.
a0d0e21e	208
5cf1d1f1	209	case "$ldlibpthname" in
	210	'') ldlibpthname=LIBPATH ;;
	211	esac
	212
a0d0e21e	213	# The first 3 options would not be needed if dynamic libs. could be linked
a0d0e21e	214	# with the compiler instead of ld.
42793c05	215	# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
4e774c84	216	# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
4e774c84	217	# symbol: boot_$(EXP) can it be auto-generated?
c07a80fd	218	case "$osvers" in
c07a80fd	219	3*)
6c79d5f6	220	lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
c07a80fd	221	;;
c07a80fd	222	*)
39816196	223	lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
b691c02f	224	;;
c07a80fd	225	esac
3427abbf	226	# AIX 4.2 (using latest patchlevels on 20001130) has a broken bind
	227	# library (getprotobyname and getprotobynumber are outversioned by
	228	# the same calls in libc, at least for xlc version 3...
	229	case "`oslevel`" in
765adc1d	230	4.2.1.*)
3427abbf	231	case "$ccversion" in # Don't know if needed for gcc
851f49a8	232	3.1.4.\|5.0.2.) # libswanted "bind ... c ..." => "... c bind ..."
3427abbf	233	set `echo X "$libswanted "\| sed -e 's/ bind\( .*\) \([cC]\) / \1 \2 bind /'`
	234	shift
	235	libswanted="$*"
	236	;;
	237	esac
	238	;;
	239	esac
52e1cb5e	240
104d25b7	241	# This script UU/usethreads.cbu will get 'called-back' by Configure
	242	# after it has prompted the user for whether to use threads.
	243	cat > UU/usethreads.cbu <<'EOCBU'
	244	case "$usethreads" in
	245	$define\|true\|[yY]*)
4e774c84	246	ccflags="$ccflags -DNEED_PTHREAD_INIT"
	247	case "$cc" in
	248	gcc) ;;
	249	cc_r) ;;
	250	cc\|xl[cC]_r)
bbc711f9	251	echo >&4 "Switching cc to cc_r because of POSIX threads."
bbc711f9	252	# xlc_r has been known to produce buggy code in AIX 4.3.2.
4e774c84	253	# (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
bbc711f9	254	# --jhi@iki.fi
bbc711f9	255	cc=cc_r
4e774c84	256	;;
4e774c84	257	'')
bbc711f9	258	cc=cc_r
4e774c84	259	;;
	260	*)
	261	cat >&4 <<EOM
6b356c8e	262	*** For pthreads you should use the AIX C compiler cc_r.
	263	*** (now your compiler was set to '$cc')
	264	*** Cannot continue, aborting.
104d25b7	265	EOM
4e774c84	266	exit 1
104d25b7	267	;;
4e774c84	268	esac
4e774c84	269
c88be79f	270	# c_rify libswanted.
	271	set `echo X "$libswanted "\| sed -e 's/ \([cC]\) / \1_r /g'`
	272	shift
	273	libswanted="$*"
	274	# c_rify lddlflags.
	275	set `echo X "$lddlflags "\| sed -e 's/ \(-l[cC]\) / \1_r /g'`
	276	shift
	277	lddlflags="$*"
	278
	279	# Insert pthreads to libswanted, before any libc or libC.
db512b97	280	set `echo X "$libswanted "\| sed -e 's/ \([cC]_r\) / pthreads \1 /'`
c88be79f	281	shift
	282	libswanted="$*"
	283	# Insert pthreads to lddlflags, before any libc or libC.
db512b97	284	set `echo X "$lddlflags " \| sed -e 's/ \(-l[cC]_r\) / -lpthreads \1 /'`
c88be79f	285	shift
	286	lddlflags="$*"
	287
104d25b7	288	;;
	289	esac
	290	EOCBU
fa9667c9	291
8a647129	292	# This script UU/uselargefiles.cbu will get 'called-back' by Configure
bd9b35c9	293	# after it has prompted the user for whether to use large files.
8a647129	294	cat > UU/uselargefiles.cbu <<'EOCBU'
bd9b35c9	295	case "$uselargefiles" in
10cc9d2a	296	''\|$define\|true\|[yY]*)
21c7e20c	297	# Configure should take care of use64bitint and use64bitall being
	298	# defined before uselargefiles.cbu is consulted.
	299	if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
	300	# Keep these at the left margin.
	301	ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
	302	ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
	303	else
9422c00b	304	# Keep these at the left margin.
45c9e83b	305	ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
45c9e83b	306	ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
21c7e20c	307	fi
6b8eaf93	308	# _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
	309	# insert(?) something to $ldflags so that later (in Configure) evaluating
	310	# $ldflags causes a newline after the '-b64' (the result of the getconf).
	311	# (nothing strange shows up in $ldflags even in hexdump;
d553adec	312	# so it may be something (a bug) in the shell, instead?)
6b8eaf93	313	# Try it out: just uncomment the below line and rerun Configure:
45c9e83b	314	# echo >&4 "AIX 4.3.1.0 $ldflags_uselargefiles mystery" ; exit 1
6b8eaf93	315	# Just don't ask me how AIX does it, I spent hours wondering.
45c9e83b	316	# Therefore the line re-evaluating ldflags_uselargefiles: it seems to fix
6b8eaf93	317	# the whatever it was that AIX managed to break. --jhi
45c9e83b	318	ldflags_uselargefiles="`echo $ldflags_uselargefiles`"
21c7e20c	319	if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
	320	# Keep this at the left margin.
	321	libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
	322	else
9422c00b	323	# Keep this at the left margin.
45c9e83b	324	libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
21c7e20c	325	fi
45c9e83b	326	case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
bd9b35c9	327	'');;
45c9e83b	328	*) ccflags="$ccflags $ccflags_uselargefiles"
	329	ldflags="$ldflags $ldflags_uselargefiles"
	330	libswanted="$libswanted $libswanted_uselargefiles"
bd9b35c9	331	;;
bd9b35c9	332	esac
d553adec	333	case "$gccversion" in
	334	'') ;;
	335	*)
	336	cat >&4 <<EOM
	337
	338	*** Warning: gcc in AIX might not work with the largefile support of Perl
	339	*** (default since 5.6.0), this combination hasn't been tested.
	340	*** I will try, though.
	341
	342	EOM
	343	# Remove xlc-spefific -qflags.
	344	ccflags="`echo $ccflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
	345	ldflags="`echo $ldflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
b0f9136b	346	# Move xld-spefific -bflags.
b0f9136b	347	ccflags="`echo $ccflags \| sed -e 's@ -b@ -Wl,-b@g'`"
1bd6f77a	348	ldflags="`echo ' '$ldflags \| sed -e 's@ -b@ -Wl,-b@g'`"
e87c1573	349	lddlflags="`echo ' '$lddlflags \| sed -e 's@ -b@ -Wl,-b@g'`"
39816196	350	ld='gcc'
765adc1d	351	echo >&4 "(using ccflags $ccflags)"
	352	echo >&4 "(using ldflags $ldflags)"
	353	echo >&4 "(using lddlflags $lddlflags)"
d553adec	354	;;
	355	esac
	356	;;
bd9b35c9	357	esac
bd9b35c9	358	EOCBU
6b8eaf93	359
10cc9d2a	360	# This script UU/use64bitint.cbu will get 'called-back' by Configure
de6124c8	361	# after it has prompted the user for whether to use 64 bit integers.
10cc9d2a	362	cat > UU/use64bitint.cbu <<'EOCBU'
10cc9d2a	363	case "$use64bitint" in
efeaa891	364	$define\|true\|[yY]*)
2d4389e4	365	case "`oslevel`" in
efeaa891	366	3.\|4.[012].)
efeaa891	367	cat >&4 <<EOM
2d4389e4	368	AIX `oslevel` does not support 64-bit interfaces.
19e194ad	369	You should upgrade to at least AIX 4.3.
efeaa891	370	EOM
	371	exit 1
	372	;;
	373	esac
19e194ad	374	;;
	375	esac
	376	EOCBU
	377
19e194ad	378	cat > UU/use64bitall.cbu <<'EOCBU'
de6124c8	379	# This script UU/use64bitall.cbu will get 'called-back' by Configure
de6124c8	380	# after it has prompted the user for whether to be maximally 64-bitty.
19e194ad	381	case "$use64bitall" in
	382	$define\|true\|[yY]*)
	383	case "`oslevel`" in
	384	3.\|4.[012].)
	385	cat >&4 <<EOM
	386	AIX `oslevel` does not support 64-bit interfaces.
	387	You should upgrade to at least AIX 4.3.
	388	EOM
	389	exit 1
	390	;;
	391	esac
	392	echo " "
	393	echo "Checking the CPU width of your hardware..." >&4
	394	$cat >size.c <<EOCP
	395	#include <stdio.h>
	396	#include <sys/systemcfg.h>
	397	int main (void)
	398	{
	399	printf("%d\n",_system_configuration.width);
	400	return(0);
	401	}
	402	EOCP
	403	set size
	404	if eval $compile_ok; then
9422c00b	405	qacpuwidth=`./size`
9422c00b	406	echo "You are running on $qacpuwidth bit hardware."
19e194ad	407	else
	408	dflt="32"
	409	echo " "
	410	echo "(I can't seem to compile the test program. Guessing...)"
	411	rp="What is the width of your CPU (in bits)?"
	412	. ./myread
9422c00b	413	qacpuwidth="$ans"
19e194ad	414	fi
19e194ad	415	$rm -f size.c size
9422c00b	416	case "$qacpuwidth" in
19e194ad	417	32*)
	418	cat >&4 <<EOM
	419	Bzzzt! At present, you can only perform a
	420	full 64-bit build on a 64-bit machine.
	421	EOM
	422	exit 1
	423	;;
	424	esac
9422c00b	425	qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
9422c00b	426	qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
19e194ad	427	# See jhi's comments above regarding this re-eval. I've
	428	# seen similar weirdness in the form of:
	429	#
	430	# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
	431	#
	432	# error messages from 'cc -E' invocation. Again, the offending
	433	# string is simply not detectable by any means. Since it doesn't
	434	# do any harm, I didn't pursue it. -- sh
9422c00b	435	qaldflags="`echo $qaldflags`"
9422c00b	436	qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
8a647129	437	# -q32 and -b32 may have been set by uselargefiles or user.
8a647129	438	# Remove them.
19e194ad	439	ccflags="`echo $ccflags \| sed -e 's@-q32@@'`"
	440	ldflags="`echo $ldflags \| sed -e 's@-b32@@'`"
	441	# Tell archiver to use large format. Unless we remove 'ar'
	442	# from 'trylist', the Configure script will just reset it to 'ar'
	443	# immediately prior to writing config.sh. This took me hours
	444	# to figure out.
bab3591f	445	trylist="`echo $trylist \| sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
19e194ad	446	ar="ar -X64"
19e194ad	447	nm_opt="-X64 $nm_opt"
9422c00b	448	# Note: Placing the 'qacflags' variable into the 'ldflags' string
3a7209f1	449	# is NOT a typo. ldflags is passed to the C compiler for final
19e194ad	450	# linking, and it wants -q64 (-b64 is for ld only!).
9422c00b	451	case "$qacflags$qaldflags$qalibs" in
19e194ad	452	'');;
9422c00b	453	*) ccflags="$ccflags $qacflags"
9422c00b	454	ldflags="$ldflags $qacflags"
3a7209f1	455	lddlflags="$qaldflags $lddlflags"
9422c00b	456	libswanted="$libswanted $qalibs"
19e194ad	457	;;
	458	esac
	459	case "$ccflags" in
	460	-DUSE_64_BIT_ALL) ;;
	461	*) ccflags="$ccflags -DUSE_64_BIT_ALL";;
	462	esac
	463	case "$archname64" in
	464	''\|64*) archname64=64all ;;
	465	esac
	466	longsize="8"
	467	# Don't try backwards compatibility
	468	bincompat="$undef"
	469	d_bincompat5005="$undef"
9422c00b	470	qacflags=''
	471	qaldflags=''
	472	qalibs=''
	473	qacpuwidth=''
efeaa891	474	;;
	475	esac
	476	EOCBU
5b877257	477
de6124c8	478	cat > UU/uselongdouble.cbu <<'EOCBU'
d9b3e12d	479	# This script UU/uselongdouble.cbu will get 'called-back' by Configure
2d4389e4	480	# after it has prompted the user for whether to use long doubles.
d9b3e12d	481	case "$uselongdouble" in
d9b3e12d	482	$define\|true\|[yY]*)
cb19cdb0	483	# -qlongdouble for cc taken out on 20010522 cause it
	484	# causes more trouble than it does any good --hmb
	485	d_Gconvert='sprintf((b),"%.*llg",((int)(n)),(x))'
d9b3e12d	486	;;
	487	esac
	488	EOCBU
	489
61d42ce4	490	if test $usenativedlopen = 'true'
61d42ce4	491	then
fd90a50d	492	ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
	493	case "$cc" in
	494	gcc) ldflags="$ldflags -Wl,-brtl" ;;
	495	*) ldflags="$ldflags -brtl" ;;
	496	esac
61d42ce4	497	else
9d20a131	498	case `oslevel` in
	499	4.2.*) ;; # libC_r has broke gettimeofday
	500	*) # If the C++ libraries, libC and libC_r, are available we will
	501	# prefer them over the vanilla libc, because the libC contain
	502	# loadAndInit() and terminateAndUnload() which work correctly
	503	# with C++ statics while libc load() and unload() do not. See
	504	# ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
	505	# usethreads.cbu, if needed.
	506	if test -f /lib/libC.a -a X"`$cc -v 2>&1 \| grep gcc`" = X; then
	507	# Cify libswanted.
	508	set `echo X "$libswanted "\| sed -e 's/ c / C c /'`
	509	shift
	510	libswanted="$*"
	511	# Cify lddlflags.
	512	set `echo X "$lddlflags "\| sed -e 's/ -lc / -lC -lc /'`
	513	shift
	514	lddlflags="$*"
	515	fi
	516	esac
c88be79f	517	fi
4e774c84	518
5b877257	519	# EOF