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[perl5.git] / hints / aix.sh
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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>
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7# Merged on Mon Feb 6 10:22:35 EST 1995 by
8# Andy Dougherty <doughera@lafcol.lafayette.edu>
9
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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]
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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#
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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.
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42d_setrgid='undef'
43d_setruid='undef'
1aef975c 44
5f3774a9 45alignbytes=8
a5f75d66 46
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47case "$usemymalloc" in
48'') usemymalloc='n' ;;
49esac
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50
51# Intuiting the existence of system calls under AIX is difficult,
52# at best; the safest technique is to find them empirically.
53
54# AIX 4.3.* and above default to using nm for symbol extraction
55case "$osvers" in
56 3.*|4.1.*|4.2.*)
57 usenm='undef'
58 ;;
59 *)
60 usenm='true'
61 ;;
62esac
cc628cc3 63
3c321fdc 64so="a"
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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>
69dlext="so"
3c321fdc 70
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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.
74case "$OBJECT_MODE" in
7532)
76 cat >&4 <<EOF
77
78You have OBJECT_MODE=32 set in the environment.
79I take this as a hint you do not want to
80build for a 64-bit address space. You will be
81given the opportunity to change this later.
82EOF
83 ;;
8464)
85 cat >&4 <<EOF
86
87You have OBJECT_MODE=64 set in the environment.
88This forces a full 64-bit build. If that is
89not what you intended, please terminate this
90program, unset it and restart.
91EOF
92 ;;
93*) ;;
94esac
95
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96# Trying to set this breaks the POSIX.c compilation
97
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98# Make setsockopt work correctly. See man page.
99# ccflags='-D_BSD=44'
100
101# uname -m output is too specific and not appropriate here
102case "$archname" in
103'') archname="$osname" ;;
104esac
105
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106cc=${cc:-cc}
107
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108case "$osvers" in
1093*) d_fchmod=undef
fc2c2f48 110 ccflags="$ccflags -D_ALL_SOURCE"
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111 ;;
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
115 *gcc*) ;;
86959918 116 *) ccflags="$ccflags -qmaxmem=16384" ;;
80589958 117 esac
1aef975c 118 nm_opt='-B'
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119 ;;
120esac
121
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122# These functions don't work like Perl expects them to.
123d_setregid='undef'
124d_setreuid='undef'
125
1aef975c 126# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
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127#
128# Tell perl which symbols to export for dynamic linking.
4633a7c4 129case "$cc" in
5f9d9a17 130*gcc*) ccdlflags='-Xlinker' ;;
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131*) ccversion=`lslpp -L | grep 'C for AIX Compiler$' | awk '{print $2}'`
132 case "$ccversion" in
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133 '') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$' | awk '{print $2}'`
134 ;;
135 esac
136 case "$ccversion" in
137 3.6.6.0)
138 optimize='none'
139 ;;
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140 4.4.0.0|4.4.0.1|4.4.0.2)
141 echo >&4 "*** This C compiler ($ccversion) is outdated."
142 echo >&4 "*** Please upgrade to at least 4.4.0.3."
143 ;;
144 esac
4633a7c4 145esac
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146# the required -bE:$installarchlib/CORE/perl.exp is added by
147# libperl.U (Configure) later.
a0d0e21e 148
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149case "$ldlibpthname" in
150'') ldlibpthname=LIBPATH ;;
151esac
152
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153# The first 3 options would not be needed if dynamic libs. could be linked
154# with the compiler instead of ld.
42793c05 155# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
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156# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
157# symbol: boot_$(EXP) can it be auto-generated?
c07a80fd 158case "$osvers" in
1593*)
6c79d5f6 160 lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
c07a80fd 161 ;;
162*)
6c79d5f6 163 lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -b noentry -lc"
b691c02f 164 ;;
c07a80fd 165esac
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166# AIX 4.2 (using latest patchlevels on 20001130) has a broken bind
167# library (getprotobyname and getprotobynumber are outversioned by
168# the same calls in libc, at least for xlc version 3...
169case "`oslevel`" in
170 4.2.1.*) # Test for xlc version too, should we?
171 case "$ccversion" in # Don't know if needed for gcc
172 3.1.4.*) # libswanted "bind ... c ..." => "... c bind ..."
173 set `echo X "$libswanted "| sed -e 's/ bind\( .*\) \([cC]\) / \1 \2 bind /'`
174 shift
175 libswanted="$*"
176 ;;
177 esac
178 ;;
179 esac
52e1cb5e 180
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181# This script UU/usethreads.cbu will get 'called-back' by Configure
182# after it has prompted the user for whether to use threads.
183cat > UU/usethreads.cbu <<'EOCBU'
184case "$usethreads" in
185$define|true|[yY]*)
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186 ccflags="$ccflags -DNEED_PTHREAD_INIT"
187 case "$cc" in
188 gcc) ;;
189 cc_r) ;;
190 cc|xl[cC]_r)
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191 echo >&4 "Switching cc to cc_r because of POSIX threads."
192 # xlc_r has been known to produce buggy code in AIX 4.3.2.
4e774c84 193 # (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
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194 # --jhi@iki.fi
195 cc=cc_r
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196 ;;
197 '')
bbc711f9 198 cc=cc_r
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199 ;;
200 *)
201 cat >&4 <<EOM
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202*** For pthreads you should use the AIX C compiler cc_r.
203*** (now your compiler was set to '$cc')
204*** Cannot continue, aborting.
104d25b7 205EOM
4e774c84 206 exit 1
104d25b7 207 ;;
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208 esac
209
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210 # c_rify libswanted.
211 set `echo X "$libswanted "| sed -e 's/ \([cC]\) / \1_r /g'`
212 shift
213 libswanted="$*"
214 # c_rify lddlflags.
215 set `echo X "$lddlflags "| sed -e 's/ \(-l[cC]\) / \1_r /g'`
216 shift
217 lddlflags="$*"
218
219 # Insert pthreads to libswanted, before any libc or libC.
220 set `echo X "$libswanted "| sed -e 's/ \([cC]\) / pthreads \1 /'`
221 shift
222 libswanted="$*"
223 # Insert pthreads to lddlflags, before any libc or libC.
224 set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]\) / -lpthreads \1 /'`
225 shift
226 lddlflags="$*"
227
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228 ;;
229esac
230EOCBU
fa9667c9 231
8a647129 232# This script UU/uselargefiles.cbu will get 'called-back' by Configure
bd9b35c9 233# after it has prompted the user for whether to use large files.
8a647129 234cat > UU/uselargefiles.cbu <<'EOCBU'
bd9b35c9 235case "$uselargefiles" in
10cc9d2a 236''|$define|true|[yY]*)
9422c00b 237# Keep these at the left margin.
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238ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
239ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
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240 # _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
241 # insert(?) *something* to $ldflags so that later (in Configure) evaluating
242 # $ldflags causes a newline after the '-b64' (the result of the getconf).
243 # (nothing strange shows up in $ldflags even in hexdump;
d553adec 244 # so it may be something (a bug) in the shell, instead?)
6b8eaf93 245 # Try it out: just uncomment the below line and rerun Configure:
45c9e83b 246# echo >&4 "AIX 4.3.1.0 $ldflags_uselargefiles mystery" ; exit 1
6b8eaf93 247 # Just don't ask me how AIX does it, I spent hours wondering.
45c9e83b 248 # Therefore the line re-evaluating ldflags_uselargefiles: it seems to fix
6b8eaf93 249 # the whatever it was that AIX managed to break. --jhi
45c9e83b 250 ldflags_uselargefiles="`echo $ldflags_uselargefiles`"
9422c00b 251# Keep this at the left margin.
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252libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
253 case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
bd9b35c9 254 '');;
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255 *) ccflags="$ccflags $ccflags_uselargefiles"
256 ldflags="$ldflags $ldflags_uselargefiles"
257 libswanted="$libswanted $libswanted_uselargefiles"
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258 ;;
259 esac
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260 case "$gccversion" in
261 '') ;;
262 *)
263 cat >&4 <<EOM
264
265*** Warning: gcc in AIX might not work with the largefile support of Perl
266*** (default since 5.6.0), this combination hasn't been tested.
267*** I will try, though.
268
269EOM
270 # Remove xlc-spefific -qflags.
271 ccflags="`echo $ccflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
272 ldflags="`echo $ldflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
273 echo >&4 "(using ccflags $ccflags)"
274 echo >&4 "(using ldflags $ldflags)"
275 ;;
276 esac
277 ;;
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278esac
279EOCBU
6b8eaf93 280
10cc9d2a 281# This script UU/use64bitint.cbu will get 'called-back' by Configure
de6124c8 282# after it has prompted the user for whether to use 64 bit integers.
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283cat > UU/use64bitint.cbu <<'EOCBU'
284case "$use64bitint" in
efeaa891 285$define|true|[yY]*)
2d4389e4 286 case "`oslevel`" in
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287 3.*|4.[012].*)
288 cat >&4 <<EOM
2d4389e4 289AIX `oslevel` does not support 64-bit interfaces.
19e194ad 290You should upgrade to at least AIX 4.3.
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291EOM
292 exit 1
293 ;;
294 esac
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295 ;;
296esac
297EOCBU
298
19e194ad 299cat > UU/use64bitall.cbu <<'EOCBU'
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300# This script UU/use64bitall.cbu will get 'called-back' by Configure
301# after it has prompted the user for whether to be maximally 64-bitty.
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302case "$use64bitall" in
303$define|true|[yY]*)
304 case "`oslevel`" in
305 3.*|4.[012].*)
306 cat >&4 <<EOM
307AIX `oslevel` does not support 64-bit interfaces.
308You should upgrade to at least AIX 4.3.
309EOM
310 exit 1
311 ;;
312 esac
313 echo " "
314 echo "Checking the CPU width of your hardware..." >&4
315 $cat >size.c <<EOCP
316#include <stdio.h>
317#include <sys/systemcfg.h>
318int main (void)
319{
320 printf("%d\n",_system_configuration.width);
321 return(0);
322}
323EOCP
324 set size
325 if eval $compile_ok; then
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326 qacpuwidth=`./size`
327 echo "You are running on $qacpuwidth bit hardware."
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328 else
329 dflt="32"
330 echo " "
331 echo "(I can't seem to compile the test program. Guessing...)"
332 rp="What is the width of your CPU (in bits)?"
333 . ./myread
9422c00b 334 qacpuwidth="$ans"
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335 fi
336 $rm -f size.c size
9422c00b 337 case "$qacpuwidth" in
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338 32*)
339 cat >&4 <<EOM
340Bzzzt! At present, you can only perform a
341full 64-bit build on a 64-bit machine.
342EOM
343 exit 1
344 ;;
345 esac
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346 qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
347 qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
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348 # See jhi's comments above regarding this re-eval. I've
349 # seen similar weirdness in the form of:
350 #
351# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
352 #
353 # error messages from 'cc -E' invocation. Again, the offending
354 # string is simply not detectable by any means. Since it doesn't
355 # do any harm, I didn't pursue it. -- sh
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356 qaldflags="`echo $qaldflags`"
357 qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
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358 # -q32 and -b32 may have been set by uselargefiles or user.
359 # Remove them.
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360 ccflags="`echo $ccflags | sed -e 's@-q32@@'`"
361 ldflags="`echo $ldflags | sed -e 's@-b32@@'`"
362 # Tell archiver to use large format. Unless we remove 'ar'
363 # from 'trylist', the Configure script will just reset it to 'ar'
364 # immediately prior to writing config.sh. This took me hours
365 # to figure out.
bab3591f 366 trylist="`echo $trylist | sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
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367 ar="ar -X64"
368 nm_opt="-X64 $nm_opt"
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369 # Note: Placing the 'qacflags' variable into the 'ldflags' string
370 # is NOT a typo. ldqalags is passed to the C compiler for final
19e194ad 371 # linking, and it wants -q64 (-b64 is for ld only!).
9422c00b 372 case "$qacflags$qaldflags$qalibs" in
19e194ad 373 '');;
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374 *) ccflags="$ccflags $qacflags"
375 ldflags="$ldflags $qacflags"
376 lddqalags="$qaldflags $lddqalags"
377 libswanted="$libswanted $qalibs"
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378 ;;
379 esac
380 case "$ccflags" in
381 *-DUSE_64_BIT_ALL*) ;;
382 *) ccflags="$ccflags -DUSE_64_BIT_ALL";;
383 esac
384 case "$archname64" in
385 ''|64*) archname64=64all ;;
386 esac
387 longsize="8"
388 # Don't try backwards compatibility
389 bincompat="$undef"
390 d_bincompat5005="$undef"
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391 qacflags=''
392 qaldflags=''
393 qalibs=''
394 qacpuwidth=''
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395 ;;
396esac
397EOCBU
5b877257 398
de6124c8 399cat > UU/uselongdouble.cbu <<'EOCBU'
d9b3e12d 400# This script UU/uselongdouble.cbu will get 'called-back' by Configure
2d4389e4 401# after it has prompted the user for whether to use long doubles.
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402case "$uselongdouble" in
403$define|true|[yY]*)
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404 case "$cc" in
405 *gcc*) ;;
406 *) ccflags="$ccflags -qlongdouble" ;;
407 esac
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408 # The explicit cc128, xlc128, xlC128 are not needed,
409 # the -qlongdouble should do the trick. --jhi
65f19062 410 d_Gconvert='sprintf((b),"%.*llg",(n),(x))'
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411 ;;
412esac
413EOCBU
414
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415# If the C++ libraries, libC and libC_r, are available we will prefer them
416# over the vanilla libc, because the libC contain loadAndInit() and
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417# terminateAndUnload() which work correctly with C++ statics while libc
418# load() and unload() do not. See ext/DynaLoader/dl_aix.xs.
c88be79f 419# The C-to-C_r switch is done by usethreads.cbu, if needed.
0903b405 420if test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then
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421 # Cify libswanted.
422 set `echo X "$libswanted "| sed -e 's/ c / C c /'`
423 shift
424 libswanted="$*"
425 # Cify lddlflags.
426 set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'`
427 shift
428 lddlflags="$*"
c88be79f 429fi
4e774c84 430
5b877257 431# EOF