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1 | # hints/aix_3.sh |
2 | # |
3 | # On Tue 03 Feb 2004 split off from aix.sh by H.Merijn Brand |
4 | # AIX 3.x.x hints thanks to Wayne Scott <wscott@ichips.intel.com> |
5 | |
6 | # Notes: |
7 | # |
8 | # - shared libperl support is tricky. if ever libperl.a ends up |
9 | # in /usr/local/lib/* it can override any subsequent builds of |
10 | # that same perl release. to make sure you know where the shared |
11 | # libperl.a is coming from do a 'dump -Hv perl' and check all the |
12 | # library search paths in the loader header. |
13 | # |
14 | # it would be nice to warn the user if a libperl.a exists that is |
15 | # going to override the current build, but that would be complex. |
16 | # |
17 | # better yet, a solid fix for this situation should be developed. |
18 | |
19 | alignbytes=8 |
20 | |
21 | case "$usemymalloc" in |
22 | '') usemymalloc='n' ;; |
23 | esac |
24 | |
25 | # Intuiting the existence of system calls under AIX is difficult, |
26 | # at best; the safest technique is to find them empirically. |
27 | |
28 | case "$usenm" in |
29 | '') usenm='undef' |
30 | esac |
31 | |
32 | so="a" |
33 | # AIX itself uses .o (libc.o) but we prefer compatibility |
34 | # with the rest of the world and with rest of the scripting |
35 | # languages (Tcl, Python) and related systems (SWIG). |
36 | # Stephanie Beals <bealzy@us.ibm.com> |
37 | dlext="so" |
38 | |
39 | # Take possible hint from the environment. If 32-bit is set in the |
40 | # environment, we can override it later. If set for 64, the |
41 | # 'sizeof' test sees a native 64-bit architecture and never looks back. |
42 | case "$use64bitint$use64bitall$usemorebits" in |
43 | *$define*) cat >&4 <<EOM |
44 | |
45 | AIX `oslevel` does not support 64-bit interfaces. |
46 | You should upgrade to at least AIX 4.3. |
47 | EOM |
48 | exit |
49 | ;; |
50 | esac |
51 | |
52 | case "$usemorebits" in |
53 | if [ "$OBJECT_MODE" = "64" ] then |
54 | cat >&4 <<EOF |
55 | |
56 | You have OBJECT_MODE=64 set in the environment. |
57 | This would force a full 64-bit build, but AIX 3 |
58 | does not support 64bit. |
59 | EOF |
60 | fi |
61 | |
62 | # uname -m output is too specific and not appropriate here |
63 | case "$archname" in |
64 | '') archname="$osname" ;; |
65 | esac |
66 | |
67 | cc=${cc:-cc} |
68 | d_fchmod='undef' |
69 | ccflags="$ccflags -D_ALL_SOURCE" |
70 | |
71 | # These functions don't work like Perl expects them to. |
72 | d_setregid='undef' |
73 | d_setreuid='undef' |
74 | |
75 | # Configure finds setrgid and setruid, but they're useless. The man |
76 | # pages state: |
77 | # setrgid: The EPERM error code is always returned. |
78 | # setruid: The EPERM error code is always returned. Processes cannot |
79 | # reset only their real user IDs. |
80 | d_setrgid='undef' |
81 | d_setruid='undef' |
82 | |
83 | # Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com> |
84 | # |
85 | # Tell perl which symbols to export for dynamic linking. |
86 | cccdlflags='none' # All AIX code is position independent |
87 | cc_type=xlc # do not export to config.sh |
88 | case "$cc" in |
89 | *gcc*) |
90 | cc_type=gcc |
91 | ccdlflags='-Xlinker' |
92 | if [ "X$gccversion" = "X" ]; then |
93 | # Done too late in Configure if hinted |
0baa0948 |
94 | gccversion=`$cc -dumpversion` |
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95 | fi |
96 | ;; |
97 | |
98 | *) ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -v '\.msg\.[A-Za-z_]*\.' | head -1 | awk '{print $1,$2}'` |
99 | case "$ccversion" in |
100 | '') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$'` |
101 | ;; |
102 | |
103 | *.*.*.*.*.*.*) # Ahhrgg, more than one C compiler installed |
104 | first_cc_path=`which ${cc:-cc}` |
105 | case "$first_cc_path" in |
106 | *vac*) |
107 | cc_type=vac |
108 | ;; |
109 | /usr/bin/cc) # Check the symlink |
110 | if [ -h $first_cc_path ]; then |
111 | ls -l $first_cc_path > reflect |
112 | if grep -i vac reflect >/dev/null 2>&1 ; then |
113 | cc_type=vac |
114 | fi |
115 | rm -f reflect |
116 | fi |
117 | ;; |
118 | esac |
119 | ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -i $cc_type | head -1` |
120 | ;; |
121 | vac*.*.*.*) |
122 | cc_type=vac |
123 | ;; |
124 | esac |
125 | |
126 | ccversion=`echo "$ccversion" | awk '{print $2}'` |
127 | case "$ccversion" in |
128 | 3.6.6.0) |
129 | optimize='none' |
130 | ;; |
131 | 4.4.0.0|4.4.0.1|4.4.0.2) |
132 | cat >&4 <<EOF |
133 | *** |
134 | *** This C compiler ($ccversion) is outdated. |
135 | *** |
136 | *** Please upgrade to at least 4.4.0.3. |
137 | *** |
138 | EOF |
139 | ;; |
140 | 5.0.0.0) |
141 | cat >&4 <<EOF |
142 | *** |
143 | *** This C compiler ($ccversion) is known to have too many optimizer |
144 | *** bugs to compile a working Perl. |
145 | *** |
146 | *** Consider upgrading your C compiler, or getting the GNU cc (gcc). |
147 | *** |
148 | *** Cannot continue, aborting. |
149 | EOF |
150 | exit 1 |
151 | ;; |
152 | 5.0.1.0) |
153 | cat >&4 <<EOF |
154 | *** |
155 | *** This C compiler ($ccversion) is known to have optimizer problems |
156 | *** when compiling regcomp.c. |
157 | *** |
158 | *** Disabling optimization for that file but consider upgrading |
159 | *** your C compiler. |
160 | *** |
161 | EOF |
162 | regcomp_cflags='optimize=' |
163 | ;; |
164 | esac |
165 | esac |
166 | # the required -bE:$installarchlib/CORE/perl.exp is added by |
167 | # libperl.U (Configure) later. |
168 | |
169 | # The first 3 options would not be needed if dynamic libs. could be linked |
170 | # with the compiler instead of ld. |
171 | # -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary |
172 | # -bE:$(BASEEXT).exp Export these symbols. This file contains only one |
173 | # symbol: boot_$(EXP) can it be auto-generated? |
174 | lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc" |
175 | |
176 | case $cc_type in |
177 | vac|xlc) |
178 | case "$uselongdouble" in |
179 | $define|true|[yY]*) |
180 | ccflags="$ccflags -qlongdouble" |
181 | libswanted="c128 $libswanted" |
182 | lddlflags=`echo "$lddlflags " | sed -e 's/ -lc / -lc128 -lc /'` |
183 | ;; |
184 | esac |
185 | esac |
186 | |
187 | case "$cc" in |
188 | *gcc*) ;; |
189 | cc*|xlc*) # cc should've been set by line 116 or so if empty. |
190 | if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then |
191 | case ":$PATH:" in |
192 | *:/usr/vac/bin:*) ;; |
193 | *) if test ! -x /QOpenSys/usr/bin/$cc; then |
194 | # The /QOpenSys/usr/bin/$cc saves us if we are |
195 | # building natively in OS/400 PASE. |
196 | cat >&4 <<EOF |
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 | *** |
204 | EOF |
205 | exit 1 |
206 | fi |
207 | ;; |
208 | esac |
209 | fi |
210 | ;; |
211 | esac |
212 | |
213 | case "$ldlibpthname" in |
214 | '') ldlibpthname=LIBPATH ;; |
215 | esac |
216 | |
217 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
218 | # after it has prompted the user for whether to use threads. |
219 | cat > UU/usethreads.cbu <<'EOCBU' |
220 | case "$usethreads" in |
221 | $define|true|[yY]*) |
222 | d_drand48_r='undef' |
223 | d_endgrent_r='undef' |
224 | d_endpwent_r='undef' |
225 | d_getgrent_r='undef' |
226 | d_getpwent_r='undef' |
227 | d_random_r='undef' |
228 | d_setgrent_r='undef' |
229 | d_setpwent_r='undef' |
230 | d_srand48_r='undef' |
231 | d_strerror_r='undef' |
232 | ccflags="$ccflags -DNEED_PTHREAD_INIT" |
233 | case "$cc" in |
234 | *gcc*) |
235 | ccflags="-D_THREAD_SAFE $ccflags" |
236 | ;; |
237 | cc_r) ;; |
238 | cc|xl[cC]_r) |
239 | echo >&4 "Switching cc to cc_r because of POSIX threads." |
240 | # xlc_r has been known to produce buggy code in AIX 4.3.2. |
241 | # (e.g. pragma/overload core dumps) Let's suspect xlC_r, too. |
242 | # --jhi@iki.fi |
243 | cc=cc_r |
244 | ;; |
245 | '') |
246 | cc=cc_r |
247 | ;; |
248 | *) |
249 | cat >&4 <<EOM |
250 | *** For pthreads you should use the AIX C compiler cc_r. |
251 | *** (now your compiler was set to '$cc') |
252 | *** Cannot continue, aborting. |
253 | EOM |
254 | exit 1 |
255 | ;; |
256 | esac |
257 | |
258 | # c_rify libswanted. |
259 | set `echo X "$libswanted "| sed -e 's/ \([cC]\) / \1_r /g'` |
260 | shift |
261 | libswanted="$*" |
262 | # c_rify lddlflags. |
263 | set `echo X "$lddlflags "| sed -e 's/ \(-l[cC]\) / \1_r /g'` |
264 | shift |
265 | lddlflags="$*" |
266 | |
267 | # Insert pthreads to libswanted, before any libc or libC. |
268 | set `echo X "$libswanted "| sed -e 's/ \([cC]_r\) / pthreads \1 /'` |
269 | shift |
270 | libswanted="$*" |
271 | # Insert pthreads to lddlflags, before any libc or libC. |
272 | set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]_r\) / -lpthreads \1 /'` |
273 | shift |
274 | lddlflags="$*" |
275 | ;; |
276 | esac |
277 | EOCBU |
278 | |
279 | # This script UU/uselargefiles.cbu will get 'called-back' by Configure |
280 | # after it has prompted the user for whether to use large files. |
281 | cat > UU/uselargefiles.cbu <<'EOCBU' |
282 | case "$uselargefiles" in |
283 | ''|$define|true|[yY]*) |
284 | # Configure should take care of use64bitint and use64bitall being |
285 | # defined before uselargefiles.cbu is consulted. |
286 | if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then |
287 | # Keep these at the left margin. |
288 | ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`" |
289 | ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`" |
290 | else |
291 | # Keep these at the left margin. |
292 | ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`" |
293 | ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`" |
294 | fi |
295 | if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then |
296 | # Keep this at the left margin. |
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297 | libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`" |
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298 | else |
299 | # Keep this at the left margin. |
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300 | libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`" |
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301 | fi |
302 | case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in |
303 | '') ;; |
304 | *) ccflags="$ccflags $ccflags_uselargefiles" |
305 | ldflags="$ldflags $ldflags_uselargefiles" |
306 | libswanted="$libswanted $libswanted_uselargefiles" |
307 | ;; |
308 | esac |
309 | case "$gccversion" in |
310 | '') ;; |
311 | *) # Remove xlc-specific -qflags. |
312 | ccflags="`echo $ccflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`" |
313 | ldflags="`echo $ldflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`" |
314 | # Move xlc-specific -bflags. |
315 | ccflags="`echo $ccflags | sed -e 's@ -b@ -Wl,-b@g'`" |
316 | ldflags="`echo ' '$ldflags | sed -e 's@ -b@ -Wl,-b@g'`" |
317 | lddlflags="`echo ' '$lddlflags | sed -e 's@ -b@ -Wl,-b@g'`" |
318 | ld='gcc' |
319 | echo >&4 "(using ccflags $ccflags)" |
320 | echo >&4 "(using ldflags $ldflags)" |
321 | echo >&4 "(using lddlflags $lddlflags)" |
322 | ;; |
323 | esac |
324 | ;; |
325 | esac |
326 | EOCBU |
327 | |
328 | if test $usenativedlopen = 'true' ; then |
329 | ccflags="$ccflags -DUSE_NATIVE_DLOPEN" |
330 | case "$cc" in |
331 | *gcc*) ldflags="$ldflags -Wl,-brtl" ;; |
332 | *) ldflags="$ldflags -brtl" ;; |
333 | esac |
334 | else |
335 | # If the C++ libraries, libC and libC_r, are available we will |
336 | # prefer them over the vanilla libc, because the libC contain |
337 | # loadAndInit() and terminateAndUnload() which work correctly |
338 | # with C++ statics while libc load() and unload() do not. See |
339 | # ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by |
340 | # usethreads.cbu, if needed. |
341 | if test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then |
342 | # Cify libswanted. |
343 | set `echo X "$libswanted "| sed -e 's/ c / C c /'` |
344 | shift |
345 | libswanted="$*" |
346 | # Cify lddlflags. |
347 | set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'` |
348 | shift |
349 | lddlflags="$*" |
350 | fi |
351 | fi |
352 | |
353 | # EOF |