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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>
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"
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122 case "$cc" in
123 *gcc*) ;;
da559df7 124 *) ccflags="$ccflags -qmaxmem=-1 -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.
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137cccdlflags='none' # All AIX code is position independent
138 cc_type=xlc # do not export to config.sh
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
f3e3647f 145 gccversion=`$cc --version | sed 's/.*(GCC) *//'`
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146 fi
147 ;;
35727b84 148*) ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -v '\.msg\.[A-Za-z_]*\.' | head -1 | awk '{print $1,$2}'`
6b356c8e 149 case "$ccversion" in
411de0ab 150 '') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$'`
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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 $first_cc_path > reflect
160 if grep -i vac reflect >/dev/null 2>&1 ; then
161 cc_type=vac
162 fi
163 rm -f reflect
164 fi
165 ;;
166 esac
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167 ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -i $cc_type | head -1`
168 ;;
169 vac*.*.*.*)
170 cc_type=vac
851f49a8 171 ;;
8d4151d3 172 esac
411de0ab 173 ccversion=`echo "$ccversion" | awk '{print $2}'`
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174 case "$ccversion" in
175 3.6.6.0)
176 optimize='none'
177 ;;
6b356c8e 178 4.4.0.0|4.4.0.1|4.4.0.2)
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179 cat >&4 <<EOF
180***
181*** This C compiler ($ccversion) is outdated.
182***
183*** Please upgrade to at least 4.4.0.3.
184***
185EOF
186 ;;
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187 5.0.0.0)
188 cat >&4 <<EOF
189***
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190*** This C compiler ($ccversion) is known to have too many optimizer
191*** bugs to compile a working Perl.
2973cfbe 192***
201c2286 193*** Consider upgrading your C compiler, or getting the GNU cc (gcc).
2973cfbe 194***
201c2286 195*** Cannot continue, aborting.
2973cfbe 196EOF
201c2286 197 exit 1
2973cfbe 198 ;;
72f70c99 199 5.0.1.0)
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200 cat >&4 <<EOF
201***
202*** This C compiler ($ccversion) is known to have optimizer problems
203*** when compiling regcomp.c.
204***
205*** Disabling optimization for that file but consider upgrading
206*** your C compiler.
207***
208EOF
209regcomp_cflags='optimize='
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210 ;;
211 esac
4633a7c4 212esac
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213# the required -bE:$installarchlib/CORE/perl.exp is added by
214# libperl.U (Configure) later.
a0d0e21e 215
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216# The first 3 options would not be needed if dynamic libs. could be linked
217# with the compiler instead of ld.
218# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
219# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
220# symbol: boot_$(EXP) can it be auto-generated?
221case "$osvers" in
222 3*)
223 lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
224 ;;
225 *)
226 lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
227 ;;
228 esac
229
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230case "$use64bitall" in
231 $define|true|[yY]*) use64bitint="$define" ;;
232 esac
233
234case "$usemorebits" in
235 $define|true|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
236 esac
237
238case $cc_type in
239 vac|xlc)
240 case "$uselongdouble" in
241 $define|true|[yY]*)
242 ccflags="$ccflags -qlongdouble"
243 libswanted="c128 $libswanted"
411de0ab 244 lddlflags=`echo "$lddlflags " | sed -e 's/ -lc / -lc128 -lc /'`
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245 ;;
246 esac
247 esac
248
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249case "$cc" in
250*gcc*) ;;
251cc*|xlc*) # cc should've been set by line 116 or so if empty.
252 if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
253 case ":$PATH:" in
254 *:/usr/vac/bin:*) ;;
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255 *) if test ! -x /QOpenSys/usr/bin/$cc; then
256 # The /QOpenSys/usr/bin/$cc saves us if we are
257 # building natively in OS/400 PASE.
e6604a4d 258 cat >&4 <<EOF
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259
260***
261*** You either implicitly or explicitly specified an IBM C compiler,
262*** but you do not seem to have one in /usr/bin, but you seem to have
263*** the VAC installed in /usr/vac, but you do not have the /usr/vac/bin
264*** in your PATH. I suggest adding that and retrying Configure.
265***
266EOF
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267 exit 1
268 fi
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269 ;;
270 esac
271 fi
272 ;;
273esac
274
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275case "$ldlibpthname" in
276'') ldlibpthname=LIBPATH ;;
277esac
278
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279# AIX 4.2 (using latest patchlevels on 20001130) has a broken bind
280# library (getprotobyname and getprotobynumber are outversioned by
281# the same calls in libc, at least for xlc version 3...
282case "`oslevel`" in
765adc1d 283 4.2.1.*)
3427abbf 284 case "$ccversion" in # Don't know if needed for gcc
851f49a8 285 3.1.4.*|5.0.2.*) # libswanted "bind ... c ..." => "... c bind ..."
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286 set `echo X "$libswanted "| sed -e 's/ bind\( .*\) \([cC]\) / \1 \2 bind /'`
287 shift
288 libswanted="$*"
289 ;;
290 esac
291 ;;
292 esac
52e1cb5e 293
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294# This script UU/usethreads.cbu will get 'called-back' by Configure
295# after it has prompted the user for whether to use threads.
296cat > UU/usethreads.cbu <<'EOCBU'
297case "$usethreads" in
298$define|true|[yY]*)
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299 ccflags="$ccflags -DNEED_PTHREAD_INIT"
300 case "$cc" in
86c089c6 301 *gcc*)
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302 ccflags="-D_THREAD_SAFE $ccflags"
303 echo "GCC $gccversion disabling some _r functions" >&4
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304 case "$gccversion" in
305 3*) d_drand48_r='undef'
306 d_endgrent_r='undef'
307 d_endpwent_r='undef'
308 d_getgrent_r='undef'
309 d_getpwent_r='undef'
310 d_random_r='undef'
311 d_srand48_r='undef'
312 d_strerror_r='undef'
313 ;;
314 esac
315 ;;
4e774c84 316 cc_r) ;;
d885ff3e 317 cc|xl[cC]|xl[cC]_r)
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318 echo >&4 "Switching cc to cc_r because of POSIX threads."
319 # xlc_r has been known to produce buggy code in AIX 4.3.2.
4e774c84 320 # (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
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321 # --jhi@iki.fi
322 cc=cc_r
12c96c39 323
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324 case "`oslevel`" in
325 4.2.1.*) i_crypt='undef' ;;
326 esac
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327 ;;
328 '')
bbc711f9 329 cc=cc_r
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330 ;;
331 *)
332 cat >&4 <<EOM
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333*** For pthreads you should use the AIX C compiler cc_r.
334*** (now your compiler was set to '$cc')
335*** Cannot continue, aborting.
104d25b7 336EOM
4e774c84 337 exit 1
104d25b7 338 ;;
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339 esac
340
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341 # c_rify libswanted.
342 set `echo X "$libswanted "| sed -e 's/ \([cC]\) / \1_r /g'`
343 shift
344 libswanted="$*"
345 # c_rify lddlflags.
346 set `echo X "$lddlflags "| sed -e 's/ \(-l[cC]\) / \1_r /g'`
347 shift
348 lddlflags="$*"
349
350 # Insert pthreads to libswanted, before any libc or libC.
db512b97 351 set `echo X "$libswanted "| sed -e 's/ \([cC]_r\) / pthreads \1 /'`
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352 shift
353 libswanted="$*"
354 # Insert pthreads to lddlflags, before any libc or libC.
db512b97 355 set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]_r\) / -lpthreads \1 /'`
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356 shift
357 lddlflags="$*"
358
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359 ;;
360esac
361EOCBU
fa9667c9 362
8a647129 363# This script UU/uselargefiles.cbu will get 'called-back' by Configure
bd9b35c9 364# after it has prompted the user for whether to use large files.
8a647129 365cat > UU/uselargefiles.cbu <<'EOCBU'
bd9b35c9 366case "$uselargefiles" in
10cc9d2a 367''|$define|true|[yY]*)
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368 # Configure should take care of use64bitint and use64bitall being
369 # defined before uselargefiles.cbu is consulted.
370 if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
371# Keep these at the left margin.
372ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
373ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
374 else
9422c00b 375# Keep these at the left margin.
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376ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
377ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
21c7e20c 378 fi
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379 # _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
380 # insert(?) *something* to $ldflags so that later (in Configure) evaluating
381 # $ldflags causes a newline after the '-b64' (the result of the getconf).
382 # (nothing strange shows up in $ldflags even in hexdump;
d553adec 383 # so it may be something (a bug) in the shell, instead?)
6b8eaf93 384 # Try it out: just uncomment the below line and rerun Configure:
45c9e83b 385# echo >&4 "AIX 4.3.1.0 $ldflags_uselargefiles mystery" ; exit 1
6b8eaf93 386 # Just don't ask me how AIX does it, I spent hours wondering.
45c9e83b 387 # Therefore the line re-evaluating ldflags_uselargefiles: it seems to fix
6b8eaf93 388 # the whatever it was that AIX managed to break. --jhi
45c9e83b 389 ldflags_uselargefiles="`echo $ldflags_uselargefiles`"
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390 if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
391# Keep this at the left margin.
392libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
393 else
9422c00b 394# Keep this at the left margin.
45c9e83b 395libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
21c7e20c 396 fi
45c9e83b 397 case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
bd9b35c9 398 '');;
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399 *) ccflags="$ccflags $ccflags_uselargefiles"
400 ldflags="$ldflags $ldflags_uselargefiles"
401 libswanted="$libswanted $libswanted_uselargefiles"
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402 ;;
403 esac
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404 case "$gccversion" in
405 '') ;;
dfb557fe 406 *) # Remove xlc-specific -qflags.
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407 ccflags="`echo $ccflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
408 ldflags="`echo $ldflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
dfb557fe 409 # Move xlc-specific -bflags.
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410 ccflags="`echo $ccflags | sed -e 's@ -b@ -Wl,-b@g'`"
411 ldflags="`echo ' '$ldflags | sed -e 's@ -b@ -Wl,-b@g'`"
412 lddlflags="`echo ' '$lddlflags | sed -e 's@ -b@ -Wl,-b@g'`"
413 ld='gcc'
414 echo >&4 "(using ccflags $ccflags)"
415 echo >&4 "(using ldflags $ldflags)"
416 echo >&4 "(using lddlflags $lddlflags)"
417 ;;
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418 esac
419 ;;
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420esac
421EOCBU
6b8eaf93 422
10cc9d2a 423# This script UU/use64bitint.cbu will get 'called-back' by Configure
de6124c8 424# after it has prompted the user for whether to use 64 bit integers.
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425cat > UU/use64bitint.cbu <<'EOCBU'
426case "$use64bitint" in
efeaa891 427$define|true|[yY]*)
2d4389e4 428 case "`oslevel`" in
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429 3.*|4.[012].*)
430 cat >&4 <<EOM
2d4389e4 431AIX `oslevel` does not support 64-bit interfaces.
19e194ad 432You should upgrade to at least AIX 4.3.
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433EOM
434 exit 1
435 ;;
436 esac
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437 ;;
438esac
439EOCBU
440
19e194ad 441cat > UU/use64bitall.cbu <<'EOCBU'
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442# This script UU/use64bitall.cbu will get 'called-back' by Configure
443# after it has prompted the user for whether to be maximally 64-bitty.
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444case "$use64bitall" in
445$define|true|[yY]*)
446 case "`oslevel`" in
447 3.*|4.[012].*)
448 cat >&4 <<EOM
449AIX `oslevel` does not support 64-bit interfaces.
450You should upgrade to at least AIX 4.3.
451EOM
452 exit 1
453 ;;
454 esac
455 echo " "
456 echo "Checking the CPU width of your hardware..." >&4
457 $cat >size.c <<EOCP
458#include <stdio.h>
459#include <sys/systemcfg.h>
460int main (void)
461{
462 printf("%d\n",_system_configuration.width);
463 return(0);
464}
465EOCP
466 set size
467 if eval $compile_ok; then
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468 qacpuwidth=`./size`
469 echo "You are running on $qacpuwidth bit hardware."
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470 else
471 dflt="32"
472 echo " "
473 echo "(I can't seem to compile the test program. Guessing...)"
474 rp="What is the width of your CPU (in bits)?"
475 . ./myread
9422c00b 476 qacpuwidth="$ans"
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477 fi
478 $rm -f size.c size
9422c00b 479 case "$qacpuwidth" in
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480 32*)
481 cat >&4 <<EOM
482Bzzzt! At present, you can only perform a
483full 64-bit build on a 64-bit machine.
484EOM
485 exit 1
486 ;;
487 esac
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488 qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
489 qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
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490 # See jhi's comments above regarding this re-eval. I've
491 # seen similar weirdness in the form of:
492 #
493# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
494 #
495 # error messages from 'cc -E' invocation. Again, the offending
496 # string is simply not detectable by any means. Since it doesn't
497 # do any harm, I didn't pursue it. -- sh
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498 qaldflags="`echo $qaldflags`"
499 qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
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500 # -q32 and -b32 may have been set by uselargefiles or user.
501 # Remove them.
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502 ccflags="`echo $ccflags | sed -e 's@-q32@@'`"
503 ldflags="`echo $ldflags | sed -e 's@-b32@@'`"
504 # Tell archiver to use large format. Unless we remove 'ar'
505 # from 'trylist', the Configure script will just reset it to 'ar'
506 # immediately prior to writing config.sh. This took me hours
507 # to figure out.
bab3591f 508 trylist="`echo $trylist | sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
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509 ar="ar -X64"
510 nm_opt="-X64 $nm_opt"
9422c00b 511 # Note: Placing the 'qacflags' variable into the 'ldflags' string
3a7209f1 512 # is NOT a typo. ldflags is passed to the C compiler for final
19e194ad 513 # linking, and it wants -q64 (-b64 is for ld only!).
9422c00b 514 case "$qacflags$qaldflags$qalibs" in
19e194ad 515 '');;
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516 *) ccflags="$ccflags $qacflags"
517 ldflags="$ldflags $qacflags"
3a7209f1 518 lddlflags="$qaldflags $lddlflags"
9422c00b 519 libswanted="$libswanted $qalibs"
19e194ad
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520 ;;
521 esac
522 case "$ccflags" in
523 *-DUSE_64_BIT_ALL*) ;;
524 *) ccflags="$ccflags -DUSE_64_BIT_ALL";;
525 esac
526 case "$archname64" in
527 ''|64*) archname64=64all ;;
528 esac
529 longsize="8"
9422c00b
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530 qacflags=''
531 qaldflags=''
532 qalibs=''
533 qacpuwidth=''
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534 ;;
535esac
536EOCBU
5b877257 537
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538if test $usenativedlopen = 'true'
539then
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540 ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
541 case "$cc" in
542 *gcc*) ldflags="$ldflags -Wl,-brtl" ;;
543 *) ldflags="$ldflags -brtl" ;;
544 esac
61d42ce4 545else
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546 case `oslevel` in
547 4.2.*) ;; # libC_r has broke gettimeofday
548 *) # If the C++ libraries, libC and libC_r, are available we will
549 # prefer them over the vanilla libc, because the libC contain
550 # loadAndInit() and terminateAndUnload() which work correctly
551 # with C++ statics while libc load() and unload() do not. See
552 # ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
553 # usethreads.cbu, if needed.
554 if test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then
555 # Cify libswanted.
556 set `echo X "$libswanted "| sed -e 's/ c / C c /'`
557 shift
558 libswanted="$*"
559 # Cify lddlflags.
560 set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'`
561 shift
562 lddlflags="$*"
563 fi
564 esac
c88be79f 565fi
4e774c84 566
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567case "$PASE" in
568define)
569 case "$prefix" in
570 '') prefix=/QOpenSys/perl ;;
571 esac
572 cat >&4 <<EOF
573
574***
575*** You seem to be compiling in AIX for the OS/400 PASE environment.
576*** I'm not going to use the AIX bind, nsl, and possible util libraries, then.
577*** I'm also not going to install perl as /usr/bin/perl.
578*** Perl will be installed under $prefix.
579*** For instructions how to install this build from AIX to PASE,
580*** see the file README.os400. Accept the "aix" for the question
581*** about "Operating system name".
582***
583EOF
584 set `echo " $libswanted " | sed -e 's@ bind @ @' -e 's@ nsl @ @' -e 's@ util @ @'`
585 shift
586 libswanted="$*"
587 installusrbinperl="$undef"
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588
589 # V5R1 doesn't have this (V5R2 does), without knowing
590 # which one we have it's safer to be pessimistic.
591 # Cwd will work fine even without fchdir(), but if
592 # V5R1 tries to use code compiled assuming fchdir(),
593 # lots of grief will issue forth from Cwd.
594 case "$d_fchdir" in
595 '') d_fchdir="$undef" ;;
596 esac
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597 ;;
598esac
599
5b877257 600# EOF