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The AIX cc 5.0.0.0 is simply too buggy.
[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
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56 3.*|4.1.*|4.2.*)
57 case "$usenm" in
58 '') usenm='undef'
59 esac
60 case "$usenativedlopen" in
61 '') usenativedlopen='false'
62 esac
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63 ;;
64 *)
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65 case "$usenm" in
66 '') usenm='true'
67 esac
68 case "$usenativedlopen" in
69 '') usenativedlopen='true'
70 esac
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71 ;;
72esac
cc628cc3 73
3c321fdc 74so="a"
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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>
79dlext="so"
3c321fdc 80
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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.
84case "$OBJECT_MODE" in
8532)
86 cat >&4 <<EOF
87
88You have OBJECT_MODE=32 set in the environment.
89I take this as a hint you do not want to
90build for a 64-bit address space. You will be
91given the opportunity to change this later.
92EOF
93 ;;
9464)
95 cat >&4 <<EOF
96
97You have OBJECT_MODE=64 set in the environment.
98This forces a full 64-bit build. If that is
99not what you intended, please terminate this
100program, unset it and restart.
101EOF
102 ;;
103*) ;;
104esac
105
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106# Trying to set this breaks the POSIX.c compilation
107
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108# Make setsockopt work correctly. See man page.
109# ccflags='-D_BSD=44'
110
111# uname -m output is too specific and not appropriate here
112case "$archname" in
113'') archname="$osname" ;;
114esac
115
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116cc=${cc:-cc}
117
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118case "$osvers" in
1193*) d_fchmod=undef
fc2c2f48 120 ccflags="$ccflags -D_ALL_SOURCE"
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121 ;;
122*) # These hints at least work for 4.x, possibly other systems too.
fc2c2f48 123 ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
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124 case "$cc" in
125 *gcc*) ;;
86959918 126 *) ccflags="$ccflags -qmaxmem=16384" ;;
80589958 127 esac
1aef975c 128 nm_opt='-B'
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129 ;;
130esac
131
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132# These functions don't work like Perl expects them to.
133d_setregid='undef'
134d_setreuid='undef'
135
1aef975c 136# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
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137#
138# Tell perl which symbols to export for dynamic linking.
b0f9136b 139cccdlflags='none' # All AIX code is position independent
4633a7c4 140case "$cc" in
5f9d9a17 141*gcc*) ccdlflags='-Xlinker' ;;
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142*) ccversion=`lslpp -L | grep 'C for AIX Compiler$' | awk '{print $2}'`
143 case "$ccversion" in
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144 '') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$' | awk '{print $2}'`
145 ;;
146 esac
147 case "$ccversion" in
148 3.6.6.0)
149 optimize='none'
150 ;;
6b356c8e 151 4.4.0.0|4.4.0.1|4.4.0.2)
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152 cat >&4 <<EOF
153***
154*** This C compiler ($ccversion) is outdated.
155***
156*** Please upgrade to at least 4.4.0.3.
157***
158EOF
159 ;;
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160 5.0.0.0)
161 cat >&4 <<EOF
162***
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163*** This C compiler ($ccversion) is known to have too many optimizer
164*** bugs to compile a working Perl.
2973cfbe 165***
201c2286 166*** Consider upgrading your C compiler, or getting the GNU cc (gcc).
2973cfbe 167***
201c2286 168*** Cannot continue, aborting.
2973cfbe 169EOF
201c2286 170 exit 1
2973cfbe 171 ;;
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172 5.0.1.0)
173 cat >&4 <<EOF
174***
175*** This C compiler ($ccversion) is known to have optimizer problems
176*** when compiling regcomp.c.
177***
178*** Disabling optimization for that file but consider upgrading
179*** your C compiler.
180***
181EOF
182regcomp_cflags='optimize='
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183 ;;
184 esac
4633a7c4 185esac
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186# the required -bE:$installarchlib/CORE/perl.exp is added by
187# libperl.U (Configure) later.
a0d0e21e 188
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189case "$ldlibpthname" in
190'') ldlibpthname=LIBPATH ;;
191esac
192
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193# The first 3 options would not be needed if dynamic libs. could be linked
194# with the compiler instead of ld.
42793c05 195# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
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196# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
197# symbol: boot_$(EXP) can it be auto-generated?
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198case "$osvers" in
1993*)
6c79d5f6 200 lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
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201 ;;
202*)
39816196 203 lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
b691c02f 204 ;;
c07a80fd 205esac
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206# AIX 4.2 (using latest patchlevels on 20001130) has a broken bind
207# library (getprotobyname and getprotobynumber are outversioned by
208# the same calls in libc, at least for xlc version 3...
209case "`oslevel`" in
765adc1d 210 4.2.1.*)
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211 case "$ccversion" in # Don't know if needed for gcc
212 3.1.4.*) # libswanted "bind ... c ..." => "... c bind ..."
213 set `echo X "$libswanted "| sed -e 's/ bind\( .*\) \([cC]\) / \1 \2 bind /'`
214 shift
215 libswanted="$*"
216 ;;
217 esac
218 ;;
219 esac
52e1cb5e 220
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221# This script UU/usethreads.cbu will get 'called-back' by Configure
222# after it has prompted the user for whether to use threads.
223cat > UU/usethreads.cbu <<'EOCBU'
224case "$usethreads" in
225$define|true|[yY]*)
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226 ccflags="$ccflags -DNEED_PTHREAD_INIT"
227 case "$cc" in
228 gcc) ;;
229 cc_r) ;;
230 cc|xl[cC]_r)
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231 echo >&4 "Switching cc to cc_r because of POSIX threads."
232 # xlc_r has been known to produce buggy code in AIX 4.3.2.
4e774c84 233 # (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
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234 # --jhi@iki.fi
235 cc=cc_r
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236 ;;
237 '')
bbc711f9 238 cc=cc_r
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239 ;;
240 *)
241 cat >&4 <<EOM
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242*** For pthreads you should use the AIX C compiler cc_r.
243*** (now your compiler was set to '$cc')
244*** Cannot continue, aborting.
104d25b7 245EOM
4e774c84 246 exit 1
104d25b7 247 ;;
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248 esac
249
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250 # c_rify libswanted.
251 set `echo X "$libswanted "| sed -e 's/ \([cC]\) / \1_r /g'`
252 shift
253 libswanted="$*"
254 # c_rify lddlflags.
255 set `echo X "$lddlflags "| sed -e 's/ \(-l[cC]\) / \1_r /g'`
256 shift
257 lddlflags="$*"
258
259 # Insert pthreads to libswanted, before any libc or libC.
db512b97 260 set `echo X "$libswanted "| sed -e 's/ \([cC]_r\) / pthreads \1 /'`
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261 shift
262 libswanted="$*"
263 # Insert pthreads to lddlflags, before any libc or libC.
db512b97 264 set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]_r\) / -lpthreads \1 /'`
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265 shift
266 lddlflags="$*"
267
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268 ;;
269esac
270EOCBU
fa9667c9 271
8a647129 272# This script UU/uselargefiles.cbu will get 'called-back' by Configure
bd9b35c9 273# after it has prompted the user for whether to use large files.
8a647129 274cat > UU/uselargefiles.cbu <<'EOCBU'
bd9b35c9 275case "$uselargefiles" in
10cc9d2a 276''|$define|true|[yY]*)
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277 # Configure should take care of use64bitint and use64bitall being
278 # defined before uselargefiles.cbu is consulted.
279 if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
280# Keep these at the left margin.
281ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
282ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
283 else
9422c00b 284# Keep these at the left margin.
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285ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
286ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
21c7e20c 287 fi
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288 # _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
289 # insert(?) *something* to $ldflags so that later (in Configure) evaluating
290 # $ldflags causes a newline after the '-b64' (the result of the getconf).
291 # (nothing strange shows up in $ldflags even in hexdump;
d553adec 292 # so it may be something (a bug) in the shell, instead?)
6b8eaf93 293 # Try it out: just uncomment the below line and rerun Configure:
45c9e83b 294# echo >&4 "AIX 4.3.1.0 $ldflags_uselargefiles mystery" ; exit 1
6b8eaf93 295 # Just don't ask me how AIX does it, I spent hours wondering.
45c9e83b 296 # Therefore the line re-evaluating ldflags_uselargefiles: it seems to fix
6b8eaf93 297 # the whatever it was that AIX managed to break. --jhi
45c9e83b 298 ldflags_uselargefiles="`echo $ldflags_uselargefiles`"
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299 if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
300# Keep this at the left margin.
301libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
302 else
9422c00b 303# Keep this at the left margin.
45c9e83b 304libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
21c7e20c 305 fi
45c9e83b 306 case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
bd9b35c9 307 '');;
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308 *) ccflags="$ccflags $ccflags_uselargefiles"
309 ldflags="$ldflags $ldflags_uselargefiles"
310 libswanted="$libswanted $libswanted_uselargefiles"
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311 ;;
312 esac
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313 case "$gccversion" in
314 '') ;;
315 *)
316 cat >&4 <<EOM
317
318*** Warning: gcc in AIX might not work with the largefile support of Perl
319*** (default since 5.6.0), this combination hasn't been tested.
320*** I will try, though.
321
322EOM
323 # Remove xlc-spefific -qflags.
324 ccflags="`echo $ccflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
325 ldflags="`echo $ldflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
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326 # Move xld-spefific -bflags.
327 ccflags="`echo $ccflags | sed -e 's@ -b@ -Wl,-b@g'`"
1bd6f77a 328 ldflags="`echo ' '$ldflags | sed -e 's@ -b@ -Wl,-b@g'`"
e87c1573 329 lddlflags="`echo ' '$lddlflags | sed -e 's@ -b@ -Wl,-b@g'`"
39816196 330 ld='gcc'
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331 echo >&4 "(using ccflags $ccflags)"
332 echo >&4 "(using ldflags $ldflags)"
333 echo >&4 "(using lddlflags $lddlflags)"
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334 ;;
335 esac
336 ;;
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337esac
338EOCBU
6b8eaf93 339
10cc9d2a 340# This script UU/use64bitint.cbu will get 'called-back' by Configure
de6124c8 341# after it has prompted the user for whether to use 64 bit integers.
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342cat > UU/use64bitint.cbu <<'EOCBU'
343case "$use64bitint" in
efeaa891 344$define|true|[yY]*)
2d4389e4 345 case "`oslevel`" in
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346 3.*|4.[012].*)
347 cat >&4 <<EOM
2d4389e4 348AIX `oslevel` does not support 64-bit interfaces.
19e194ad 349You should upgrade to at least AIX 4.3.
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350EOM
351 exit 1
352 ;;
353 esac
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354 ;;
355esac
356EOCBU
357
19e194ad 358cat > UU/use64bitall.cbu <<'EOCBU'
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359# This script UU/use64bitall.cbu will get 'called-back' by Configure
360# after it has prompted the user for whether to be maximally 64-bitty.
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361case "$use64bitall" in
362$define|true|[yY]*)
363 case "`oslevel`" in
364 3.*|4.[012].*)
365 cat >&4 <<EOM
366AIX `oslevel` does not support 64-bit interfaces.
367You should upgrade to at least AIX 4.3.
368EOM
369 exit 1
370 ;;
371 esac
372 echo " "
373 echo "Checking the CPU width of your hardware..." >&4
374 $cat >size.c <<EOCP
375#include <stdio.h>
376#include <sys/systemcfg.h>
377int main (void)
378{
379 printf("%d\n",_system_configuration.width);
380 return(0);
381}
382EOCP
383 set size
384 if eval $compile_ok; then
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385 qacpuwidth=`./size`
386 echo "You are running on $qacpuwidth bit hardware."
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387 else
388 dflt="32"
389 echo " "
390 echo "(I can't seem to compile the test program. Guessing...)"
391 rp="What is the width of your CPU (in bits)?"
392 . ./myread
9422c00b 393 qacpuwidth="$ans"
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394 fi
395 $rm -f size.c size
9422c00b 396 case "$qacpuwidth" in
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397 32*)
398 cat >&4 <<EOM
399Bzzzt! At present, you can only perform a
400full 64-bit build on a 64-bit machine.
401EOM
402 exit 1
403 ;;
404 esac
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405 qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
406 qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
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407 # See jhi's comments above regarding this re-eval. I've
408 # seen similar weirdness in the form of:
409 #
410# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
411 #
412 # error messages from 'cc -E' invocation. Again, the offending
413 # string is simply not detectable by any means. Since it doesn't
414 # do any harm, I didn't pursue it. -- sh
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415 qaldflags="`echo $qaldflags`"
416 qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
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417 # -q32 and -b32 may have been set by uselargefiles or user.
418 # Remove them.
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419 ccflags="`echo $ccflags | sed -e 's@-q32@@'`"
420 ldflags="`echo $ldflags | sed -e 's@-b32@@'`"
421 # Tell archiver to use large format. Unless we remove 'ar'
422 # from 'trylist', the Configure script will just reset it to 'ar'
423 # immediately prior to writing config.sh. This took me hours
424 # to figure out.
bab3591f 425 trylist="`echo $trylist | sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
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426 ar="ar -X64"
427 nm_opt="-X64 $nm_opt"
9422c00b 428 # Note: Placing the 'qacflags' variable into the 'ldflags' string
3a7209f1 429 # is NOT a typo. ldflags is passed to the C compiler for final
19e194ad 430 # linking, and it wants -q64 (-b64 is for ld only!).
9422c00b 431 case "$qacflags$qaldflags$qalibs" in
19e194ad 432 '');;
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433 *) ccflags="$ccflags $qacflags"
434 ldflags="$ldflags $qacflags"
3a7209f1 435 lddlflags="$qaldflags $lddlflags"
9422c00b 436 libswanted="$libswanted $qalibs"
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437 ;;
438 esac
439 case "$ccflags" in
440 *-DUSE_64_BIT_ALL*) ;;
441 *) ccflags="$ccflags -DUSE_64_BIT_ALL";;
442 esac
443 case "$archname64" in
444 ''|64*) archname64=64all ;;
445 esac
446 longsize="8"
447 # Don't try backwards compatibility
448 bincompat="$undef"
449 d_bincompat5005="$undef"
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450 qacflags=''
451 qaldflags=''
452 qalibs=''
453 qacpuwidth=''
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454 ;;
455esac
456EOCBU
5b877257 457
de6124c8 458cat > UU/uselongdouble.cbu <<'EOCBU'
d9b3e12d 459# This script UU/uselongdouble.cbu will get 'called-back' by Configure
2d4389e4 460# after it has prompted the user for whether to use long doubles.
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461case "$uselongdouble" in
462$define|true|[yY]*)
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463 # -qlongdouble for cc taken out on 20010522 cause it
464 # causes more trouble than it does any good --hmb
465 d_Gconvert='sprintf((b),"%.*llg",((int)(n)),(x))'
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466 ;;
467esac
468EOCBU
469
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470if test $usenativedlopen = 'true'
471then
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472 ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
473 case "$cc" in
474 *gcc*) ldflags="$ldflags -Wl,-brtl" ;;
475 *) ldflags="$ldflags -brtl" ;;
476 esac
61d42ce4 477else
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478 case `oslevel` in
479 4.2.*) ;; # libC_r has broke gettimeofday
480 *) # If the C++ libraries, libC and libC_r, are available we will
481 # prefer them over the vanilla libc, because the libC contain
482 # loadAndInit() and terminateAndUnload() which work correctly
483 # with C++ statics while libc load() and unload() do not. See
484 # ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
485 # usethreads.cbu, if needed.
486 if test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then
487 # Cify libswanted.
488 set `echo X "$libswanted "| sed -e 's/ c / C c /'`
489 shift
490 libswanted="$*"
491 # Cify lddlflags.
492 set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'`
493 shift
494 lddlflags="$*"
495 fi
496 esac
c88be79f 497fi
4e774c84 498
5b877257 499# EOF