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First steps towards an explicit perl.exp-less AIX build
[perl5.git] / hints / aix.sh
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1aef975c 1# hints/aix.sh
1aef975c 2
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3# AIX 3 and AIX 4 are split off to aix_3.sh and aix_4.sh
4# early Feb 2004 by H.Merijn Brand
5# please read comments in there for historic questions.
6# many now stripped here
7
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8# Contact dfavor@corridor.com for any of the following:
9#
10# - AIX 43x and above support
11# - gcc + threads support
12# - socks support
13#
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14# Notes:
15#
16# - shared libperl support is tricky. if ever libperl.a ends up
17# in /usr/local/lib/* it can override any subsequent builds of
18# that same perl release. to make sure you know where the shared
19# libperl.a is coming from do a 'dump -Hv perl' and check all the
20# library search paths in the loader header.
21#
22# it would be nice to warn the user if a libperl.a exists that is
23# going to override the current build, but that would be complex.
24#
25# better yet, a solid fix for this situation should be developed.
26#
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27
28# Configure finds setrgid and setruid, but they're useless. The man
29# pages state:
30# setrgid: The EPERM error code is always returned.
31# setruid: The EPERM error code is always returned. Processes cannot
4e774c84 32# reset only their real user IDs.
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33d_setrgid='undef'
34d_setruid='undef'
1aef975c 35
5f3774a9 36alignbytes=8
a5f75d66 37
86959918 38case "$usemymalloc" in
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39 '') usemymalloc='n' ;;
40 esac
bbc711f9 41
88567e60 42# malloc wrap works, but not in vac-5, see later
da0b61dd 43case "$usemallocwrap" in
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44 '') usemallocwrap='define' ;;
45 esac
da0b61dd 46
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47# Intuiting the existence of system calls under AIX is difficult,
48# at best; the safest technique is to find them empirically.
49
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50case "$usenativedlopen" in
51 '') usenativedlopen='true' ;;
52 esac
cc628cc3 53
3c321fdc 54so="a"
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55# AIX itself uses .o (libc.o) but we prefer compatibility
56# with the rest of the world and with rest of the scripting
57# languages (Tcl, Python) and related systems (SWIG).
58# Stephanie Beals <bealzy@us.ibm.com>
59dlext="so"
3c321fdc 60
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61# Take possible hint from the environment. If 32-bit is set in the
62# environment, we can override it later. If set for 64, the
63# 'sizeof' test sees a native 64-bit architecture and never looks back.
64case "$OBJECT_MODE" in
2463cec9 65 32) cat >&4 <<EOF
19e194ad 66
2463cec9 67You have OBJECT_MODE=32 set in the environment.
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68I take this as a hint you do not want to
69build for a 64-bit address space. You will be
70given the opportunity to change this later.
71EOF
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72 ;;
73 64) cat >&4 <<EOF
19e194ad 74
2463cec9 75You have OBJECT_MODE=64 set in the environment.
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76This forces a full 64-bit build. If that is
77not what you intended, please terminate this
78program, unset it and restart.
79EOF
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80 ;;
81 esac
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82
83# uname -m output is too specific and not appropriate here
84case "$archname" in
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85 '') archname="$osname" ;;
86 esac
1aef975c 87
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88cc=${cc:-cc}
89
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90ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
91case "$cc" in
92 *gcc*) ;;
93 *) ccflags="$ccflags -qmaxmem=-1 -qnoansialias" ;;
80589958 94 esac
1c00c3fe 95nm_opt='-B'
1aef975c 96
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97# These functions don't work like Perl expects them to.
98d_setregid='undef'
99d_setreuid='undef'
100
1aef975c 101# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
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102#
103# Tell perl which symbols to export for dynamic linking.
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104cccdlflags='none' # All AIX code is position independent
105 cc_type=xlc # do not export to config.sh
4633a7c4 106case "$cc" in
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107 *gcc*)
108 cc_type=gcc
109 ccdlflags='-Xlinker'
110 if [ "X$gccversion" = "X" ]; then
111 # Done too late in Configure if hinted
112 gccversion=`$cc --version | sed 's/.*(GCC) *//'`
113 fi
2973cfbe 114 ;;
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115
116 *) ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -v '\.msg\.[A-Za-z_]*\.' | head -1 | awk '{print $1,$2}'`
117 case "$ccversion" in
118 '') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$'` ;;
119
120 *.*.*.*.*.*.*) # Ahhrgg, more than one C compiler installed
121 first_cc_path=`which ${cc:-cc}`
122 case "$first_cc_path" in
123 *vac*)
124 cc_type=vac ;;
125
126 /usr/bin/cc) # Check the symlink
127 if [ -h $first_cc_path ] ; then
128 ls -l $first_cc_path > reflect
129 if grep -i vac reflect >/dev/null 2>&1 ; then
130 cc_type=vac
131 fi
132 rm -f reflect
133 fi
134 ;;
135 esac
136 ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -i $cc_type | head -1`
137 ;;
138
139 vac*.*.*.*)
140 cc_type=vac
141 ;;
142 esac
143
144 ccversion=`echo "$ccversion" | awk '{print $2}'`
145 # Redbooks state AIX-5 only supports vac-5.0.2.0 and up
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146 case "$ccversion" in
147 5*) usemallocwrap='n' ;; # panic in miniperl
148 esac
6b356c8e 149 ;;
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150 esac
151
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152# the required -bE:$installarchlib/CORE/perl.exp is added by
153# libperl.U (Configure) later.
a0d0e21e 154
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155# The first 3 options would not be needed if dynamic libs. could be linked
156# with the compiler instead of ld.
157# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
158# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
159# symbol: boot_$(EXP) can it be auto-generated?
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160if test $usenativedlopen = 'true' ; then
161 lddlflags="$lddlflags -bhalt:4 -bexpall -G -bnoentry -lc"
162else
163 lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
164 fi
411de0ab 165
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166case "$use64bitall" in
167 $define|true|[yY]*) use64bitint="$define" ;;
168 esac
169
170case "$usemorebits" in
171 $define|true|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
172 esac
173
174case $cc_type in
175 vac|xlc)
176 case "$uselongdouble" in
177 $define|true|[yY]*)
178 ccflags="$ccflags -qlongdouble"
179 libswanted="c128 $libswanted"
411de0ab 180 lddlflags=`echo "$lddlflags " | sed -e 's/ -lc / -lc128 -lc /'`
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181 ;;
182 esac
2463cec9 183 ;;
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184 esac
185
444379fb 186case "$cc" in
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187 *gcc*) ;;
188
189 cc*|xlc*) # cc should've been set by line 116 or so if empty.
444379fb 190 if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
2463cec9 191 case ":$PATH:" in
444379fb 192 *:/usr/vac/bin:*) ;;
2463cec9 193 *) if test ! -x /QOpenSys/usr/bin/$cc; then
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194 # The /QOpenSys/usr/bin/$cc saves us if we are
195 # building natively in OS/400 PASE.
e6604a4d 196 cat >&4 <<EOF
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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***
204EOF
61074b56 205 exit 1
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206 fi
207 ;;
444379fb 208 esac
2463cec9 209 fi
444379fb 210 ;;
2463cec9 211 esac
444379fb 212
5cf1d1f1 213case "$ldlibpthname" in
2463cec9 214 '') ldlibpthname=LIBPATH ;;
3427abbf 215 esac
52e1cb5e 216
2463cec9 217# This script UU/usethreads.cbu will get 'called-back' by Configure
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218# after it has prompted the user for whether to use threads.
219cat > UU/usethreads.cbu <<'EOCBU'
220case "$usethreads" in
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221 $define|true|[yY]*)
222 d_drand48_r='undef'
223 d_endgrent_r='undef'
224 d_endpwent_r='undef'
225 d_getgrent_r='undef'
226 d_getpwent_r='undef'
227 d_random_r='undef'
228 d_setgrent_r='undef'
229 d_setpwent_r='undef'
230 d_srand48_r='undef'
231 d_strerror_r='undef'
232
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233 ccflags="$ccflags -DNEED_PTHREAD_INIT"
234 case "$cc" in
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235 *gcc*) ccflags="-D_THREAD_SAFE $ccflags" ;;
236
237 cc_r) ;;
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238 '') cc=cc_r ;;
239
240 *)
241
242
243 # No | alternation in aix sed. :-(
244 newcc=`echo $cc | sed -e 's/cc$/cc_r/' -e 's/xl[cC]$/cc_r/' -e 's/xl[cC]_r$/cc_r/'`
245 case "$newcc" in
246 $cc) # No change
247 ;;
248
249 *cc_r)
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250 echo >&4 "Switching cc to cc_r because of POSIX threads."
251 # xlc_r has been known to produce buggy code in AIX 4.3.2.
252 # (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
253 # --jhi@iki.fi
3e50adc2 254 cc="$newcc"
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255 ;;
256
3e50adc2 257 *)
2463cec9 258 cat >&4 <<EOM
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259*** For pthreads you should use the AIX C compiler cc_r.
260*** (now your compiler was set to '$cc')
261*** Cannot continue, aborting.
104d25b7 262EOM
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263 exit 1
264 ;;
265 esac
3e50adc2 266 esac
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267
268 # Insert pthreads to libswanted, before any libc or libC.
15173baf 269 set `echo X "$libswanted "| sed -e 's/ \([cC]\) / pthreads \1 /'`
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270 shift
271 libswanted="$*"
272 # Insert pthreads to lddlflags, before any libc or libC.
15173baf 273 set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]\) / -lpthreads \1 /'`
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274 shift
275 lddlflags="$*"
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276 ;;
277esac
278EOCBU
fa9667c9 279
2463cec9 280# This script UU/uselargefiles.cbu will get 'called-back' by Configure
bd9b35c9 281# after it has prompted the user for whether to use large files.
8a647129 282cat > UU/uselargefiles.cbu <<'EOCBU'
bd9b35c9 283case "$uselargefiles" in
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284 ''|$define|true|[yY]*)
285 # Configure should take care of use64bitint and use64bitall being
286 # defined before uselargefiles.cbu is consulted.
287 if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
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288# Keep these at the left margin.
289ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
290ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
2463cec9 291 else
9422c00b 292# Keep these at the left margin.
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293ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
294ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
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295 fi
296 if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
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297# Keep this at the left margin.
298libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
2463cec9 299 else
9422c00b 300# Keep this at the left margin.
45c9e83b 301libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
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302 fi
303
45c9e83b 304 case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
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305 '') ;;
306 *) ccflags="$ccflags $ccflags_uselargefiles"
307 ldflags="$ldflags $ldflags_uselargefiles"
308 libswanted="$libswanted $libswanted_uselargefiles"
309 ;;
310 esac
6b8eaf93 311
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312 case "$gccversion" in
313 '') ;;
314 *) # Remove xlc-specific -qflags.
315 ccflags="`echo $ccflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
316 ldflags="`echo $ldflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
317 # Move xlc-specific -bflags.
318 ccflags="`echo $ccflags | sed -e 's@ -b@ -Wl,-b@g'`"
319 ldflags="`echo ' '$ldflags | sed -e 's@ -b@ -Wl,-b@g'`"
320 lddlflags="`echo ' '$lddlflags | sed -e 's@ -b@ -Wl,-b@g'`"
321 ld='gcc'
322 echo >&4 "(using ccflags $ccflags)"
323 echo >&4 "(using ldflags $ldflags)"
324 echo >&4 "(using lddlflags $lddlflags)"
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325 ;;
326 esac
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327 ;;
328 esac
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329EOCBU
330
19e194ad 331cat > UU/use64bitall.cbu <<'EOCBU'
2463cec9 332# This script UU/use64bitall.cbu will get 'called-back' by Configure
de6124c8 333# after it has prompted the user for whether to be maximally 64-bitty.
19e194ad 334case "$use64bitall" in
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335 $define|true|[yY]*)
336 echo " "
337 echo "Checking the CPU width of your hardware..." >&4
338 $cat >size.c <<EOCP
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339#include <stdio.h>
340#include <sys/systemcfg.h>
341int main (void)
342{
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343 printf ("%d\n", _system_configuration.width);
344 return (0);
345 }
19e194ad 346EOCP
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347 set size
348 if eval $compile_ok; then
349 qacpuwidth=`./size`
350 echo "You are running on $qacpuwidth bit hardware."
351 else
352 dflt="32"
353 echo " "
354 echo "(I can't seem to compile the test program. Guessing...)"
355 rp="What is the width of your CPU (in bits)?"
356 . ./myread
357 qacpuwidth="$ans"
19e194ad 358 fi
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359 $rm -f size.c size
360
361 case "$qacpuwidth" in
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362 32*)
363 cat >&4 <<EOM
364Bzzzt! At present, you can only perform a
365full 64-bit build on a 64-bit machine.
366EOM
367 exit 1
368 ;;
369 esac
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370 qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
371 qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
372 # See jhi's comments above regarding this re-eval. I've
373 # seen similar weirdness in the form of:
374 #
19e194ad 375# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
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376 #
377 # error messages from 'cc -E' invocation. Again, the offending
378 # string is simply not detectable by any means. Since it doesn't
379 # do any harm, I didn't pursue it. -- sh
380 qaldflags="`echo $qaldflags`"
381 qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
382 # -q32 and -b32 may have been set by uselargefiles or user.
383 # Remove them.
384 ccflags="`echo $ccflags | sed -e 's@-q32@@'`"
385 ldflags="`echo $ldflags | sed -e 's@-b32@@'`"
386 # Tell archiver to use large format. Unless we remove 'ar'
387 # from 'trylist', the Configure script will just reset it to 'ar'
388 # immediately prior to writing config.sh. This took me hours
389 # to figure out.
390 trylist="`echo $trylist | sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
391 ar="ar -X64"
392 nm_opt="-X64 $nm_opt"
393 # Note: Placing the 'qacflags' variable into the 'ldflags' string
394 # is NOT a typo. ldflags is passed to the C compiler for final
395 # linking, and it wants -q64 (-b64 is for ld only!).
396 case "$qacflags$qaldflags$qalibs" in
397 '') ;;
398 *) ccflags="$ccflags $qacflags"
399 ldflags="$ldflags $qacflags"
400 lddlflags="$qaldflags $lddlflags"
401 libswanted="$libswanted $qalibs"
402 ;;
19e194ad 403 esac
2463cec9 404 case "$ccflags" in
19e194ad 405 *-DUSE_64_BIT_ALL*) ;;
2463cec9 406 *) ccflags="$ccflags -DUSE_64_BIT_ALL";;
19e194ad 407 esac
2463cec9 408 case "$archname64" in
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409 ''|64*) archname64=64all ;;
410 esac
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411 longsize="8"
412 qacflags=''
413 qaldflags=''
414 qalibs=''
415 qacpuwidth=''
416 ;;
417 esac
efeaa891 418EOCBU
5b877257 419
2463cec9 420if test $usenativedlopen = 'true' ; then
fd90a50d 421 ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
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422 # -brtl Enables a binary to use run time linking
423 # -bdynamic When used with -brtl, tells linker to search for
424 # ".so"-suffix libraries as well as ".a" suffix
425 # libraries. AIX allows both .so and .a libraries to
426 # contain dynamic shared objects.
427 # -bmaxdata:0x80000000 This increases the size of heap memory available
428 # to perl. Default is 256 MB, which sounds large but
429 # caused a software vendor problems. So this sets
430 # heap to 2 GB maximum. Anything higher and you'd
431 # want to consider 64 bit perl.
fd90a50d 432 case "$cc" in
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433 *gcc*) ldflags="$ldflags -Wl,-brtl -Wl,-bdynamic -Wl,-bmaxdata:0x80000000" ;;
434 *) ldflags="$ldflags -brtl -bdynamic -bmaxdata:0x80000000" ;;
9d20a131 435 esac
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436elif test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then
437 # If the C++ libraries, libC and libC_r, are available we will
438 # prefer them over the vanilla libc, because the libC contain
439 # loadAndInit() and terminateAndUnload() which work correctly
440 # with C++ statics while libc load() and unload() do not. See
441 # ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
442 # usethreads.cbu, if needed.
443
444 # Cify libswanted.
445 set `echo X "$libswanted "| sed -e 's/ c / C c /'`
446 shift
447 libswanted="$*"
448 # Cify lddlflags.
449 set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'`
450 shift
451 lddlflags="$*"
452 fi
4e774c84 453
522b859a 454case "$PASE" in
2463cec9 455 define)
522b859a 456 case "$prefix" in
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457 '') prefix=/QOpenSys/perl ;;
458 esac
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459 cat >&4 <<EOF
460
461***
462*** You seem to be compiling in AIX for the OS/400 PASE environment.
463*** I'm not going to use the AIX bind, nsl, and possible util libraries, then.
464*** I'm also not going to install perl as /usr/bin/perl.
465*** Perl will be installed under $prefix.
466*** For instructions how to install this build from AIX to PASE,
467*** see the file README.os400. Accept the "aix" for the question
468*** about "Operating system name".
469***
470EOF
471 set `echo " $libswanted " | sed -e 's@ bind @ @' -e 's@ nsl @ @' -e 's@ util @ @'`
472 shift
473 libswanted="$*"
474 installusrbinperl="$undef"
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475
476 # V5R1 doesn't have this (V5R2 does), without knowing
477 # which one we have it's safer to be pessimistic.
478 # Cwd will work fine even without fchdir(), but if
479 # V5R1 tries to use code compiled assuming fchdir(),
480 # lots of grief will issue forth from Cwd.
481 case "$d_fchdir" in
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482 '') d_fchdir="$undef" ;;
483 esac
522b859a 484 ;;
2463cec9 485 esac
522b859a 486
5b877257 487# EOF