perl/hints/aix_3.sh

# hints/aix_3.sh
#
# On Tue 03 Feb 2004 split off from aix.sh by H.Merijn Brand
# AIX 3.x.x hints thanks to Wayne Scott <wscott@ichips.intel.com>

# 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.

alignbytes=8

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

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

case "$usenm" in
    '') usenm='undef'
    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 "$use64bitint$use64bitall$usemorebits" in
    *$define*) cat >&4 <<EOM

AIX `oslevel` does not support 64-bit interfaces.
You should upgrade to at least AIX 4.3.
EOM
        exit
        ;;
    esac

case "$usemorebits" in
if [ "$OBJECT_MODE"  = "64" ] then
    cat >&4 <<EOF

You have OBJECT_MODE=64 set in the environment. 
This would force a full 64-bit build, but AIX 3
does not support 64bit.
EOF
    fi

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

cc=${cc:-cc}
d_fchmod='undef'
ccflags="$ccflags -D_ALL_SOURCE"

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

# 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'

# 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 ($ccversion) is known to have optimizer problems
*** when compiling regcomp.c.
***
*** Disabling optimization for that file but consider upgrading
*** your C compiler.
***
EOF
regcomp_cflags='optimize='
                ;;
            esac
    esac
# the required -bE:$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 -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"

case $cc_type in
    vac|xlc)
        case "$uselongdouble" in
            $define|true|[yY]*)
                ccflags="$ccflags -qlongdouble"
                libswanted="c128 $libswanted"
                lddlflags=`echo "$lddlflags " | sed -e 's/ -lc / -lc128 -lc /'`
                ;;
            esac
    esac

case "$cc" in
    *gcc*) ;;
    cc*|xlc*) # cc should've been set by line 116 or so if empty.
        if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
            case ":$PATH:" in
                *:/usr/vac/bin:*) ;;
                *) if test ! -x /QOpenSys/usr/bin/$cc; then
                       # The /QOpenSys/usr/bin/$cc saves us if we are
                       # building natively in OS/400 PASE.
                       cat >&4 <<EOF

***
*** You either implicitly or explicitly specified an IBM C compiler,
*** but you do not seem to have one in /usr/bin, but you seem to have
*** the VAC installed in /usr/vac, but you do not have the /usr/vac/bin
*** in your PATH.  I suggest adding that and retrying Configure.
***
EOF
                       exit 1
                       fi 
                   ;;
                esac
            fi
        ;;
    esac

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

# This script UU/usethreads.cbu will get 'called-back' by Configure 
# after it has prompted the user for whether to use threads.
cat > UU/usethreads.cbu <<'EOCBU'
case "$usethreads" in
    $define|true|[yY]*)
        d_drand48_r='undef'
        d_endgrent_r='undef'
        d_endpwent_r='undef'
        d_getgrent_r='undef'
        d_getpwent_r='undef'
        d_random_r='undef'
        d_setgrent_r='undef'
        d_setpwent_r='undef'
        d_srand48_r='undef'
        d_strerror_r='undef'
        ccflags="$ccflags -DNEED_PTHREAD_INIT"
        case "$cc" in
            *gcc*)
                ccflags="-D_THREAD_SAFE $ccflags"
                ;;
            cc_r) ;;
            cc|xl[cC]_r) 
                echo >&4 "Switching cc to cc_r because of POSIX threads."
                # xlc_r has been known to produce buggy code in AIX 4.3.2.
                # (e.g. pragma/overload core dumps)      Let's suspect xlC_r, too.
                # --jhi@iki.fi
                cc=cc_r
                ;;
            '') 
                cc=cc_r
                ;;
            *)
                cat >&4 <<EOM
*** For pthreads you should use the AIX C compiler cc_r.
*** (now your compiler was set to '$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
        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

if test $usenativedlopen = 'true' ; then
    ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
    case "$cc" in
        *gcc*) ldflags="$ldflags -Wl,-brtl" ;;
        *)     ldflags="$ldflags -brtl" ;;
        esac
else
    # If the C++ libraries, libC and libC_r, are available we will
    # prefer them over the vanilla libc, because the libC contain
    # loadAndInit() and terminateAndUnload() which work correctly
    # with C++ statics while libc load() and unload() do not. See
    # ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
    # usethreads.cbu, if needed.
    if test -f /lib/libC.a -a X"`$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
    fi

# EOF
Revision:	1.1
Committed:	Thu Jun 30 14:27:07 2005 UTC (21 years, 3 months ago) by root
Content type:	application/x-sh
Branch:	MAIN
CVS Tags:	PERL-5-8-7, HEAD
Branch point for:	PERL
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	# hints/aix_3.sh
2			#
3			# On Tue 03 Feb 2004 split off from aix.sh by H.Merijn Brand
4			# AIX 3.x.x hints thanks to Wayne Scott <wscott@ichips.intel.com>
5
6			# Notes:
7			#
8			# - shared libperl support is tricky. if ever libperl.a ends up
9			# in /usr/local/lib/* it can override any subsequent builds of
10			# that same perl release. to make sure you know where the shared
11			# libperl.a is coming from do a 'dump -Hv perl' and check all the
12			# library search paths in the loader header.
13			#
14			# it would be nice to warn the user if a libperl.a exists that is
15			# going to override the current build, but that would be complex.
16			#
17			# better yet, a solid fix for this situation should be developed.
18
19			alignbytes=8
20
21			case "$usemymalloc" in
22			'') usemymalloc='n' ;;
23			esac
24
25			# Intuiting the existence of system calls under AIX is difficult,
26			# at best; the safest technique is to find them empirically.
27
28			case "$usenm" in
29			'') usenm='undef'
30			esac
31
32			so="a"
33			# AIX itself uses .o (libc.o) but we prefer compatibility
34			# with the rest of the world and with rest of the scripting
35			# languages (Tcl, Python) and related systems (SWIG).
36			# Stephanie Beals <bealzy@us.ibm.com>
37			dlext="so"
38
39			# Take possible hint from the environment. If 32-bit is set in the
40			# environment, we can override it later. If set for 64, the
41			# 'sizeof' test sees a native 64-bit architecture and never looks back.
42			case "$use64bitint$use64bitall$usemorebits" in
43			$define) cat >&4 <<EOM
44
45			AIX `oslevel` does not support 64-bit interfaces.
46			You should upgrade to at least AIX 4.3.
47			EOM
48			exit
49			;;
50			esac
51
52			case "$usemorebits" in
53			if [ "$OBJECT_MODE" = "64" ] then
54			cat >&4 <<EOF
55
56			You have OBJECT_MODE=64 set in the environment.
57			This would force a full 64-bit build, but AIX 3
58			does not support 64bit.
59			EOF
60			fi
61
62			# uname -m output is too specific and not appropriate here
63			case "$archname" in
64			'') archname="$osname" ;;
65			esac
66
67			cc=${cc:-cc}
68			d_fchmod='undef'
69			ccflags="$ccflags -D_ALL_SOURCE"
70
71			# These functions don't work like Perl expects them to.
72			d_setregid='undef'
73			d_setreuid='undef'
74
75			# Configure finds setrgid and setruid, but they're useless. The man
76			# pages state:
77			# setrgid: The EPERM error code is always returned.
78			# setruid: The EPERM error code is always returned. Processes cannot
79			# reset only their real user IDs.
80			d_setrgid='undef'
81			d_setruid='undef'
82
83			# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
84			#
85			# Tell perl which symbols to export for dynamic linking.
86			cccdlflags='none' # All AIX code is position independent
87			cc_type=xlc # do not export to config.sh
88			case "$cc" in
89			gcc)
90			cc_type=gcc
91			ccdlflags='-Xlinker'
92			if [ "X$gccversion" = "X" ]; then
93			# Done too late in Configure if hinted
94			gccversion=`$cc --version \| sed 's/.(GCC) //'`
95			fi
96			;;
97
98			) ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| grep -v '\.msg\.[A-Za-z_]\.' \| head -1 \| awk '{print $1,$2}'`
99			case "$ccversion" in
100			'') ccversion=`lslpp -L \| grep 'IBM C and C++ Compilers LUM$'`
101			;;
102
103			......*) # Ahhrgg, more than one C compiler installed
104			first_cc_path=`which ${cc:-cc}`
105			case "$first_cc_path" in
106			vac)
107			cc_type=vac
108			;;
109			/usr/bin/cc) # Check the symlink
110			if [ -h $first_cc_path ]; then
111			ls -l $first_cc_path > reflect
112			if grep -i vac reflect >/dev/null 2>&1 ; then
113			cc_type=vac
114			fi
115			rm -f reflect
116			fi
117			;;
118			esac
119			ccversion=`lslpp -L \| grep 'C for AIX Compiler$' \| grep -i $cc_type \| head -1`
120			;;
121			vac...)
122			cc_type=vac
123			;;
124			esac
125
126			ccversion=`echo "$ccversion" \| awk '{print $2}'`
127			case "$ccversion" in
128			3.6.6.0)
129			optimize='none'
130			;;
131			4.4.0.0\|4.4.0.1\|4.4.0.2)
132			cat >&4 <<EOF
133			***
134			*** This C compiler ($ccversion) is outdated.
135			***
136			*** Please upgrade to at least 4.4.0.3.
137			***
138			EOF
139			;;
140			5.0.0.0)
141			cat >&4 <<EOF
142			***
143			*** This C compiler ($ccversion) is known to have too many optimizer
144			*** bugs to compile a working Perl.
145			***
146			*** Consider upgrading your C compiler, or getting the GNU cc (gcc).
147			***
148			*** Cannot continue, aborting.
149			EOF
150			exit 1
151			;;
152			5.0.1.0)
153			cat >&4 <<EOF
154			***
155			*** This C compiler ($ccversion) is known to have optimizer problems
156			*** when compiling regcomp.c.
157			***
158			*** Disabling optimization for that file but consider upgrading
159			*** your C compiler.
160			***
161			EOF
162			regcomp_cflags='optimize='
163			;;
164			esac
165			esac
166			# the required -bE:$installarchlib/CORE/perl.exp is added by
167			# libperl.U (Configure) later.
168
169			# The first 3 options would not be needed if dynamic libs. could be linked
170			# with the compiler instead of ld.
171			# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
172			# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
173			# symbol: boot_$(EXP) can it be auto-generated?
174			lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
175
176			case $cc_type in
177			vac\|xlc)
178			case "$uselongdouble" in
179			$define\|true\|[yY]*)
180			ccflags="$ccflags -qlongdouble"
181			libswanted="c128 $libswanted"
182			lddlflags=`echo "$lddlflags " \| sed -e 's/ -lc / -lc128 -lc /'`
183			;;
184			esac
185			esac
186
187			case "$cc" in
188			gcc) ;;
189			cc\|xlc) # cc should've been set by line 116 or so if empty.
190			if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
191			case ":$PATH:" in
192			:/usr/vac/bin:) ;;
193			*) if test ! -x /QOpenSys/usr/bin/$cc; then
194			# The /QOpenSys/usr/bin/$cc saves us if we are
195			# building natively in OS/400 PASE.
196			cat >&4 <<EOF
197
198			***
199			*** You either implicitly or explicitly specified an IBM C compiler,
200			*** but you do not seem to have one in /usr/bin, but you seem to have
201			*** the VAC installed in /usr/vac, but you do not have the /usr/vac/bin
202			*** in your PATH. I suggest adding that and retrying Configure.
203			***
204			EOF
205			exit 1
206			fi
207			;;
208			esac
209			fi
210			;;
211			esac
212
213			case "$ldlibpthname" in
214			'') ldlibpthname=LIBPATH ;;
215			esac
216
217			# This script UU/usethreads.cbu will get 'called-back' by Configure
218			# after it has prompted the user for whether to use threads.
219			cat > UU/usethreads.cbu <<'EOCBU'
220			case "$usethreads" in
221			$define\|true\|[yY]*)
222			d_drand48_r='undef'
223			d_endgrent_r='undef'
224			d_endpwent_r='undef'
225			d_getgrent_r='undef'
226			d_getpwent_r='undef'
227			d_random_r='undef'
228			d_setgrent_r='undef'
229			d_setpwent_r='undef'
230			d_srand48_r='undef'
231			d_strerror_r='undef'
232			ccflags="$ccflags -DNEED_PTHREAD_INIT"
233			case "$cc" in
234			gcc)
235			ccflags="-D_THREAD_SAFE $ccflags"
236			;;
237			cc_r) ;;
238			cc\|xl[cC]_r)
239			echo >&4 "Switching cc to cc_r because of POSIX threads."
240			# xlc_r has been known to produce buggy code in AIX 4.3.2.
241			# (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
242			# --jhi@iki.fi
243			cc=cc_r
244			;;
245			'')
246			cc=cc_r
247			;;
248			*)
249			cat >&4 <<EOM
250			*** For pthreads you should use the AIX C compiler cc_r.
251			*** (now your compiler was set to '$cc')
252			*** Cannot continue, aborting.
253			EOM
254			exit 1
255			;;
256			esac
257
258			# c_rify libswanted.
259			set `echo X "$libswanted "\| sed -e 's/ \([cC]\) / \1_r /g'`
260			shift
261			libswanted="$*"
262			# c_rify lddlflags.
263			set `echo X "$lddlflags "\| sed -e 's/ \(-l[cC]\) / \1_r /g'`
264			shift
265			lddlflags="$*"
266
267			# Insert pthreads to libswanted, before any libc or libC.
268			set `echo X "$libswanted "\| sed -e 's/ \([cC]_r\) / pthreads \1 /'`
269			shift
270			libswanted="$*"
271			# Insert pthreads to lddlflags, before any libc or libC.
272			set `echo X "$lddlflags " \| sed -e 's/ \(-l[cC]_r\) / -lpthreads \1 /'`
273			shift
274			lddlflags="$*"
275			;;
276			esac
277			EOCBU
278
279			# This script UU/uselargefiles.cbu will get 'called-back' by Configure
280			# after it has prompted the user for whether to use large files.
281			cat > UU/uselargefiles.cbu <<'EOCBU'
282			case "$uselargefiles" in
283			''\|$define\|true\|[yY]*)
284			# Configure should take care of use64bitint and use64bitall being
285			# defined before uselargefiles.cbu is consulted.
286			if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
287			# Keep these at the left margin.
288			ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
289			ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
290			else
291			# Keep these at the left margin.
292			ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
293			ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
294			fi
295			if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
296			# Keep this at the left margin.
297			libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
298			else
299			# Keep this at the left margin.
300			libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null\|sed -e 's@^-l@@' -e 's@ -l@ @g`"
301			fi
302			case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
303			'') ;;
304			*) ccflags="$ccflags $ccflags_uselargefiles"
305			ldflags="$ldflags $ldflags_uselargefiles"
306			libswanted="$libswanted $libswanted_uselargefiles"
307			;;
308			esac
309			case "$gccversion" in
310			'') ;;
311			*) # Remove xlc-specific -qflags.
312			ccflags="`echo $ccflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
313			ldflags="`echo $ldflags \| sed -e 's@ -q[^ ]@ @g' -e 's@^-q[^ ] @@g'`"
314			# Move xlc-specific -bflags.
315			ccflags="`echo $ccflags \| sed -e 's@ -b@ -Wl,-b@g'`"
316			ldflags="`echo ' '$ldflags \| sed -e 's@ -b@ -Wl,-b@g'`"
317			lddlflags="`echo ' '$lddlflags \| sed -e 's@ -b@ -Wl,-b@g'`"
318			ld='gcc'
319			echo >&4 "(using ccflags $ccflags)"
320			echo >&4 "(using ldflags $ldflags)"
321			echo >&4 "(using lddlflags $lddlflags)"
322			;;
323			esac
324			;;
325			esac
326			EOCBU
327
328			if test $usenativedlopen = 'true' ; then
329			ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
330			case "$cc" in
331			gcc) ldflags="$ldflags -Wl,-brtl" ;;
332			*) ldflags="$ldflags -brtl" ;;
333			esac
334			else
335			# If the C++ libraries, libC and libC_r, are available we will
336			# prefer them over the vanilla libc, because the libC contain
337			# loadAndInit() and terminateAndUnload() which work correctly
338			# with C++ statics while libc load() and unload() do not. See
339			# ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
340			# usethreads.cbu, if needed.
341			if test -f /lib/libC.a -a X"`$cc -v 2>&1 \| grep gcc`" = X; then
342			# Cify libswanted.
343			set `echo X "$libswanted "\| sed -e 's/ c / C c /'`
344			shift
345			libswanted="$*"
346			# Cify lddlflags.
347			set `echo X "$lddlflags "\| sed -e 's/ -lc / -lC -lc /'`
348			shift
349			lddlflags="$*"
350			fi
351			fi
352
353			# EOF