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Implemented AIX longdouble support in hints/aix.sh, which now
[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>
1aef975c 7# Merged on Mon Feb 6 10:22:35 EST 1995 by
1973dd96 8# Andy Dougherty <doughera@lafayette.edu>
1aef975c 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 "$usemymalloc" in
48'') usemymalloc='n' ;;
49esac
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50
51# Intuiting the existence of system calls under AIX is difficult,
52# at best; the safest technique is to find them empirically.
53
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54# AIX 4.3.* and above default to letting Configure test if nm
55# extraction will work.
bbc711f9 56case "$osvers" in
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57 3.*|4.1.*|4.2.*)
58 case "$usenm" in
59 '') usenm='undef'
60 esac
61 case "$usenativedlopen" in
62 '') usenativedlopen='false'
63 esac
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64 ;;
65 *)
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66 case "$usenativedlopen" in
67 '') usenativedlopen='true'
68 esac
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69 ;;
70esac
cc628cc3 71
3c321fdc 72so="a"
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73# AIX itself uses .o (libc.o) but we prefer compatibility
74# with the rest of the world and with rest of the scripting
75# languages (Tcl, Python) and related systems (SWIG).
76# Stephanie Beals <bealzy@us.ibm.com>
77dlext="so"
3c321fdc 78
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79# Take possible hint from the environment. If 32-bit is set in the
80# environment, we can override it later. If set for 64, the
81# 'sizeof' test sees a native 64-bit architecture and never looks back.
82case "$OBJECT_MODE" in
8332)
84 cat >&4 <<EOF
85
86You have OBJECT_MODE=32 set in the environment.
87I take this as a hint you do not want to
88build for a 64-bit address space. You will be
89given the opportunity to change this later.
90EOF
91 ;;
9264)
93 cat >&4 <<EOF
94
95You have OBJECT_MODE=64 set in the environment.
96This forces a full 64-bit build. If that is
97not what you intended, please terminate this
98program, unset it and restart.
99EOF
100 ;;
101*) ;;
102esac
103
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104# Trying to set this breaks the POSIX.c compilation
105
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106# Make setsockopt work correctly. See man page.
107# ccflags='-D_BSD=44'
108
109# uname -m output is too specific and not appropriate here
110case "$archname" in
111'') archname="$osname" ;;
112esac
113
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114cc=${cc:-cc}
115
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116case "$osvers" in
1173*) d_fchmod=undef
fc2c2f48 118 ccflags="$ccflags -D_ALL_SOURCE"
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119 ;;
120*) # These hints at least work for 4.x, possibly other systems too.
fc2c2f48 121 ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
80589958 122 case "$cc" in
123 *gcc*) ;;
8437356b 124 *) ccflags="$ccflags -qmaxmem=16384 -qnoansialias" ;;
80589958 125 esac
1aef975c 126 nm_opt='-B'
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127 ;;
128esac
129
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130# These functions don't work like Perl expects them to.
131d_setregid='undef'
132d_setreuid='undef'
133
1aef975c 134# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
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135#
136# Tell perl which symbols to export for dynamic linking.
b0f9136b 137cccdlflags='none' # All AIX code is position independent
851f49a8 138cc_type=xlc
4633a7c4 139case "$cc" in
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140*gcc*)
141 cc_type=gcc
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142 ccdlflags='-Xlinker'
143 if [ "X$gccversion" = "X" ]; then
144 # Done too late in Configure if hinted
145 gccversion=`$cc --version | sed 's/.*(GCC) *//`
146 fi
147 ;;
12997c75 148*) ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -v '\.msg\.[A-Za-z_]*\.' | awk '{print $2}'`
6b356c8e 149 case "$ccversion" in
8d4151d3 150 '') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$' | awk '{print $2}'`
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151 ;;
152 *.*.*.*.*.*.*) # Ahhrgg, more than one C compiler installed
153 first_cc_path=`which ${cc:-cc}`
154 case "$first_cc_path" in
155 *vac*)
156 cc_type=vac ;;
157 /usr/bin/cc) # Check the symlink
158 if [ -h $first_cc_path ] ; then
159 ls -l $first_cc_path > reflect
160 if grep -i vac reflect >/dev/null 2>&1 ; then
161 cc_type=vac
162 fi
163 rm -f reflect
164 fi
165 ;;
166 esac
167 ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -i $cc_type | awk '{print $2}' | head -1`
168 ;;
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169 esac
170 case "$ccversion" in
171 3.6.6.0)
172 optimize='none'
173 ;;
6b356c8e 174 4.4.0.0|4.4.0.1|4.4.0.2)
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175 cat >&4 <<EOF
176***
177*** This C compiler ($ccversion) is outdated.
178***
179*** Please upgrade to at least 4.4.0.3.
180***
181EOF
182 ;;
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183 5.0.0.0)
184 cat >&4 <<EOF
185***
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186*** This C compiler ($ccversion) is known to have too many optimizer
187*** bugs to compile a working Perl.
2973cfbe 188***
201c2286 189*** Consider upgrading your C compiler, or getting the GNU cc (gcc).
2973cfbe 190***
201c2286 191*** Cannot continue, aborting.
2973cfbe 192EOF
201c2286 193 exit 1
2973cfbe 194 ;;
72f70c99 195 5.0.1.0)
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196 cat >&4 <<EOF
197***
198*** This C compiler ($ccversion) is known to have optimizer problems
199*** when compiling regcomp.c.
200***
201*** Disabling optimization for that file but consider upgrading
202*** your C compiler.
203***
204EOF
205regcomp_cflags='optimize='
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206 ;;
207 esac
4633a7c4 208esac
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209# the required -bE:$installarchlib/CORE/perl.exp is added by
210# libperl.U (Configure) later.
a0d0e21e 211
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212case "$use64bitall" in
213 $define|true|[yY]*) use64bitint="$define" ;;
214 esac
215
216case "$usemorebits" in
217 $define|true|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
218 esac
219
220case $cc_type in
221 vac|xlc)
222 case "$uselongdouble" in
223 $define|true|[yY]*)
224 ccflags="$ccflags -qlongdouble"
225 libswanted="c128 $libswanted"
226 ;;
227 esac
228 esac
229
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230case "$cc" in
231*gcc*) ;;
232cc*|xlc*) # cc should've been set by line 116 or so if empty.
233 if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
234 case ":$PATH:" in
235 *:/usr/vac/bin:*) ;;
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236 *) if test ! -x /QOpenSys/usr/bin/$cc; then
237 # The /QOpenSys/usr/bin/$cc saves us if we are
238 # building natively in OS/400 PASE.
e6604a4d 239 cat >&4 <<EOF
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240
241***
242*** You either implicitly or explicitly specified an IBM C compiler,
243*** but you do not seem to have one in /usr/bin, but you seem to have
244*** the VAC installed in /usr/vac, but you do not have the /usr/vac/bin
245*** in your PATH. I suggest adding that and retrying Configure.
246***
247EOF
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248 exit 1
249 fi
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250 ;;
251 esac
252 fi
253 ;;
254esac
255
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256case "$ldlibpthname" in
257'') ldlibpthname=LIBPATH ;;
258esac
259
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260# The first 3 options would not be needed if dynamic libs. could be linked
261# with the compiler instead of ld.
42793c05 262# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
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263# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
264# symbol: boot_$(EXP) can it be auto-generated?
c07a80fd 265case "$osvers" in
2663*)
6c79d5f6 267 lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
c07a80fd 268 ;;
269*)
39816196 270 lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
b691c02f 271 ;;
c07a80fd 272esac
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273# AIX 4.2 (using latest patchlevels on 20001130) has a broken bind
274# library (getprotobyname and getprotobynumber are outversioned by
275# the same calls in libc, at least for xlc version 3...
276case "`oslevel`" in
765adc1d 277 4.2.1.*)
3427abbf 278 case "$ccversion" in # Don't know if needed for gcc
851f49a8 279 3.1.4.*|5.0.2.*) # libswanted "bind ... c ..." => "... c bind ..."
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280 set `echo X "$libswanted "| sed -e 's/ bind\( .*\) \([cC]\) / \1 \2 bind /'`
281 shift
282 libswanted="$*"
283 ;;
284 esac
285 ;;
286 esac
52e1cb5e 287
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288# This script UU/usethreads.cbu will get 'called-back' by Configure
289# after it has prompted the user for whether to use threads.
290cat > UU/usethreads.cbu <<'EOCBU'
291case "$usethreads" in
292$define|true|[yY]*)
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293 ccflags="$ccflags -DNEED_PTHREAD_INIT"
294 case "$cc" in
86c089c6 295 *gcc*)
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296 ccflags="-D_THREAD_SAFE $ccflags"
297 echo "GCC $gccversion disabling some _r functions" >&4
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298 case "$gccversion" in
299 3*) d_drand48_r='undef'
300 d_endgrent_r='undef'
301 d_endpwent_r='undef'
302 d_getgrent_r='undef'
303 d_getpwent_r='undef'
304 d_random_r='undef'
305 d_srand48_r='undef'
306 d_strerror_r='undef'
307 ;;
308 esac
309 ;;
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310 cc_r) ;;
311 cc|xl[cC]_r)
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312 echo >&4 "Switching cc to cc_r because of POSIX threads."
313 # xlc_r has been known to produce buggy code in AIX 4.3.2.
4e774c84 314 # (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
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315 # --jhi@iki.fi
316 cc=cc_r
12c96c39 317
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318 case "`oslevel`" in
319 4.2.1.*) i_crypt='undef' ;;
320 esac
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321 ;;
322 '')
bbc711f9 323 cc=cc_r
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324 ;;
325 *)
326 cat >&4 <<EOM
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327*** For pthreads you should use the AIX C compiler cc_r.
328*** (now your compiler was set to '$cc')
329*** Cannot continue, aborting.
104d25b7 330EOM
4e774c84 331 exit 1
104d25b7 332 ;;
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333 esac
334
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335 # c_rify libswanted.
336 set `echo X "$libswanted "| sed -e 's/ \([cC]\) / \1_r /g'`
337 shift
338 libswanted="$*"
339 # c_rify lddlflags.
340 set `echo X "$lddlflags "| sed -e 's/ \(-l[cC]\) / \1_r /g'`
341 shift
342 lddlflags="$*"
343
344 # Insert pthreads to libswanted, before any libc or libC.
db512b97 345 set `echo X "$libswanted "| sed -e 's/ \([cC]_r\) / pthreads \1 /'`
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346 shift
347 libswanted="$*"
348 # Insert pthreads to lddlflags, before any libc or libC.
db512b97 349 set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]_r\) / -lpthreads \1 /'`
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350 shift
351 lddlflags="$*"
352
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353 ;;
354esac
355EOCBU
fa9667c9 356
8a647129 357# This script UU/uselargefiles.cbu will get 'called-back' by Configure
bd9b35c9 358# after it has prompted the user for whether to use large files.
8a647129 359cat > UU/uselargefiles.cbu <<'EOCBU'
bd9b35c9 360case "$uselargefiles" in
10cc9d2a 361''|$define|true|[yY]*)
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362 # Configure should take care of use64bitint and use64bitall being
363 # defined before uselargefiles.cbu is consulted.
364 if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
365# Keep these at the left margin.
366ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
367ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
368 else
9422c00b 369# Keep these at the left margin.
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370ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
371ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
21c7e20c 372 fi
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373 # _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
374 # insert(?) *something* to $ldflags so that later (in Configure) evaluating
375 # $ldflags causes a newline after the '-b64' (the result of the getconf).
376 # (nothing strange shows up in $ldflags even in hexdump;
d553adec 377 # so it may be something (a bug) in the shell, instead?)
6b8eaf93 378 # Try it out: just uncomment the below line and rerun Configure:
45c9e83b 379# echo >&4 "AIX 4.3.1.0 $ldflags_uselargefiles mystery" ; exit 1
6b8eaf93 380 # Just don't ask me how AIX does it, I spent hours wondering.
45c9e83b 381 # Therefore the line re-evaluating ldflags_uselargefiles: it seems to fix
6b8eaf93 382 # the whatever it was that AIX managed to break. --jhi
45c9e83b 383 ldflags_uselargefiles="`echo $ldflags_uselargefiles`"
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384 if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
385# Keep this at the left margin.
386libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
387 else
9422c00b 388# Keep this at the left margin.
45c9e83b 389libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
21c7e20c 390 fi
45c9e83b 391 case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
bd9b35c9 392 '');;
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393 *) ccflags="$ccflags $ccflags_uselargefiles"
394 ldflags="$ldflags $ldflags_uselargefiles"
395 libswanted="$libswanted $libswanted_uselargefiles"
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396 ;;
397 esac
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398 case "$gccversion" in
399 '') ;;
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400 *) # Remove xlc-spefific -qflags.
401 ccflags="`echo $ccflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
402 ldflags="`echo $ldflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
403 # Move xld-spefific -bflags.
404 ccflags="`echo $ccflags | sed -e 's@ -b@ -Wl,-b@g'`"
405 ldflags="`echo ' '$ldflags | sed -e 's@ -b@ -Wl,-b@g'`"
406 lddlflags="`echo ' '$lddlflags | sed -e 's@ -b@ -Wl,-b@g'`"
407 ld='gcc'
408 echo >&4 "(using ccflags $ccflags)"
409 echo >&4 "(using ldflags $ldflags)"
410 echo >&4 "(using lddlflags $lddlflags)"
411 ;;
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412 esac
413 ;;
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414esac
415EOCBU
6b8eaf93 416
10cc9d2a 417# This script UU/use64bitint.cbu will get 'called-back' by Configure
de6124c8 418# after it has prompted the user for whether to use 64 bit integers.
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419cat > UU/use64bitint.cbu <<'EOCBU'
420case "$use64bitint" in
efeaa891 421$define|true|[yY]*)
2d4389e4 422 case "`oslevel`" in
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423 3.*|4.[012].*)
424 cat >&4 <<EOM
2d4389e4 425AIX `oslevel` does not support 64-bit interfaces.
19e194ad 426You should upgrade to at least AIX 4.3.
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427EOM
428 exit 1
429 ;;
430 esac
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431 ;;
432esac
433EOCBU
434
19e194ad 435cat > UU/use64bitall.cbu <<'EOCBU'
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436# This script UU/use64bitall.cbu will get 'called-back' by Configure
437# after it has prompted the user for whether to be maximally 64-bitty.
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438case "$use64bitall" in
439$define|true|[yY]*)
440 case "`oslevel`" in
441 3.*|4.[012].*)
442 cat >&4 <<EOM
443AIX `oslevel` does not support 64-bit interfaces.
444You should upgrade to at least AIX 4.3.
445EOM
446 exit 1
447 ;;
448 esac
449 echo " "
450 echo "Checking the CPU width of your hardware..." >&4
451 $cat >size.c <<EOCP
452#include <stdio.h>
453#include <sys/systemcfg.h>
454int main (void)
455{
456 printf("%d\n",_system_configuration.width);
457 return(0);
458}
459EOCP
460 set size
461 if eval $compile_ok; then
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462 qacpuwidth=`./size`
463 echo "You are running on $qacpuwidth bit hardware."
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464 else
465 dflt="32"
466 echo " "
467 echo "(I can't seem to compile the test program. Guessing...)"
468 rp="What is the width of your CPU (in bits)?"
469 . ./myread
9422c00b 470 qacpuwidth="$ans"
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471 fi
472 $rm -f size.c size
9422c00b 473 case "$qacpuwidth" in
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474 32*)
475 cat >&4 <<EOM
476Bzzzt! At present, you can only perform a
477full 64-bit build on a 64-bit machine.
478EOM
479 exit 1
480 ;;
481 esac
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482 qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
483 qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
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484 # See jhi's comments above regarding this re-eval. I've
485 # seen similar weirdness in the form of:
486 #
487# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
488 #
489 # error messages from 'cc -E' invocation. Again, the offending
490 # string is simply not detectable by any means. Since it doesn't
491 # do any harm, I didn't pursue it. -- sh
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492 qaldflags="`echo $qaldflags`"
493 qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
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494 # -q32 and -b32 may have been set by uselargefiles or user.
495 # Remove them.
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496 ccflags="`echo $ccflags | sed -e 's@-q32@@'`"
497 ldflags="`echo $ldflags | sed -e 's@-b32@@'`"
498 # Tell archiver to use large format. Unless we remove 'ar'
499 # from 'trylist', the Configure script will just reset it to 'ar'
500 # immediately prior to writing config.sh. This took me hours
501 # to figure out.
bab3591f 502 trylist="`echo $trylist | sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
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503 ar="ar -X64"
504 nm_opt="-X64 $nm_opt"
9422c00b 505 # Note: Placing the 'qacflags' variable into the 'ldflags' string
3a7209f1 506 # is NOT a typo. ldflags is passed to the C compiler for final
19e194ad 507 # linking, and it wants -q64 (-b64 is for ld only!).
9422c00b 508 case "$qacflags$qaldflags$qalibs" in
19e194ad 509 '');;
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JH
510 *) ccflags="$ccflags $qacflags"
511 ldflags="$ldflags $qacflags"
3a7209f1 512 lddlflags="$qaldflags $lddlflags"
9422c00b 513 libswanted="$libswanted $qalibs"
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514 ;;
515 esac
516 case "$ccflags" in
517 *-DUSE_64_BIT_ALL*) ;;
518 *) ccflags="$ccflags -DUSE_64_BIT_ALL";;
519 esac
520 case "$archname64" in
521 ''|64*) archname64=64all ;;
522 esac
523 longsize="8"
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524 qacflags=''
525 qaldflags=''
526 qalibs=''
527 qacpuwidth=''
efeaa891
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528 ;;
529esac
530EOCBU
5b877257 531
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532if test $usenativedlopen = 'true'
533then
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534 ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
535 case "$cc" in
536 *gcc*) ldflags="$ldflags -Wl,-brtl" ;;
537 *) ldflags="$ldflags -brtl" ;;
538 esac
61d42ce4 539else
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540 case `oslevel` in
541 4.2.*) ;; # libC_r has broke gettimeofday
542 *) # If the C++ libraries, libC and libC_r, are available we will
543 # prefer them over the vanilla libc, because the libC contain
544 # loadAndInit() and terminateAndUnload() which work correctly
545 # with C++ statics while libc load() and unload() do not. See
546 # ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
547 # usethreads.cbu, if needed.
548 if test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then
549 # Cify libswanted.
550 set `echo X "$libswanted "| sed -e 's/ c / C c /'`
551 shift
552 libswanted="$*"
553 # Cify lddlflags.
554 set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'`
555 shift
556 lddlflags="$*"
557 fi
558 esac
c88be79f 559fi
4e774c84 560
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561case "$PASE" in
562define)
563 case "$prefix" in
564 '') prefix=/QOpenSys/perl ;;
565 esac
566 cat >&4 <<EOF
567
568***
569*** You seem to be compiling in AIX for the OS/400 PASE environment.
570*** I'm not going to use the AIX bind, nsl, and possible util libraries, then.
571*** I'm also not going to install perl as /usr/bin/perl.
572*** Perl will be installed under $prefix.
573*** For instructions how to install this build from AIX to PASE,
574*** see the file README.os400. Accept the "aix" for the question
575*** about "Operating system name".
576***
577EOF
578 set `echo " $libswanted " | sed -e 's@ bind @ @' -e 's@ nsl @ @' -e 's@ util @ @'`
579 shift
580 libswanted="$*"
581 installusrbinperl="$undef"
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582
583 # V5R1 doesn't have this (V5R2 does), without knowing
584 # which one we have it's safer to be pessimistic.
585 # Cwd will work fine even without fchdir(), but if
586 # V5R1 tries to use code compiled assuming fchdir(),
587 # lots of grief will issue forth from Cwd.
588 case "$d_fchdir" in
589 '') d_fchdir="$undef" ;;
590 esac
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591 ;;
592esac
593
5b877257 594# EOF