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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>. |
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4 | # AIX 4.1 pthreading by Christopher Chan-Nui <channui@austin.ibm.com> and |
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5 | # Jarkko Hietaniemi <jhi@iki.fi>. |
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6 | # Merged on Mon Feb 6 10:22:35 EST 1995 by |
7 | # Andy Dougherty <doughera@lafcol.lafayette.edu> |
8 | |
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9 | # |
10 | # Contact dfavor@corridor.com for any of the following: |
11 | # |
12 | # - AIX 43x and above support |
13 | # - gcc + threads support |
14 | # - socks support |
15 | # |
16 | # Apr 99 changes: |
17 | # |
18 | # - use nm in AIX 43x and above |
19 | # - gcc + threads now builds |
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20 | # [(added support for socks) Jul 99 SOCKS support rewritten] |
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21 | # |
22 | # Notes: |
23 | # |
24 | # - shared libperl support is tricky. if ever libperl.a ends up |
25 | # in /usr/local/lib/* it can override any subsequent builds of |
26 | # that same perl release. to make sure you know where the shared |
27 | # libperl.a is coming from do a 'dump -Hv perl' and check all the |
28 | # library search paths in the loader header. |
29 | # |
30 | # it would be nice to warn the user if a libperl.a exists that is |
31 | # going to override the current build, but that would be complex. |
32 | # |
33 | # better yet, a solid fix for this situation should be developed. |
34 | # |
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35 | |
36 | # Configure finds setrgid and setruid, but they're useless. The man |
37 | # pages state: |
38 | # setrgid: The EPERM error code is always returned. |
39 | # setruid: The EPERM error code is always returned. Processes cannot |
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40 | # reset only their real user IDs. |
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41 | d_setrgid='undef' |
42 | d_setruid='undef' |
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43 | |
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44 | alignbytes=8 |
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45 | |
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46 | case "$usemymalloc" in |
47 | '') usemymalloc='n' ;; |
48 | esac |
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49 | |
50 | # Intuiting the existence of system calls under AIX is difficult, |
51 | # at best; the safest technique is to find them empirically. |
52 | |
53 | # AIX 4.3.* and above default to using nm for symbol extraction |
54 | case "$osvers" in |
55 | 3.*|4.1.*|4.2.*) |
56 | usenm='undef' |
57 | ;; |
58 | *) |
59 | usenm='true' |
60 | ;; |
61 | esac |
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62 | |
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63 | so="a" |
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64 | # AIX itself uses .o (libc.o) but we prefer compatibility |
65 | # with the rest of the world and with rest of the scripting |
66 | # languages (Tcl, Python) and related systems (SWIG). |
67 | # Stephanie Beals <bealzy@us.ibm.com> |
68 | dlext="so" |
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69 | |
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70 | # Trying to set this breaks the POSIX.c compilation |
71 | |
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72 | # Make setsockopt work correctly. See man page. |
73 | # ccflags='-D_BSD=44' |
74 | |
75 | # uname -m output is too specific and not appropriate here |
76 | case "$archname" in |
77 | '') archname="$osname" ;; |
78 | esac |
79 | |
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80 | cc=${cc:-cc} |
81 | |
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82 | case "$osvers" in |
83 | 3*) d_fchmod=undef |
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84 | ccflags="$ccflags -D_ALL_SOURCE" |
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85 | ;; |
86 | *) # These hints at least work for 4.x, possibly other systems too. |
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87 | ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE" |
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88 | case "$cc" in |
89 | *gcc*) ;; |
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90 | *) ccflags="$ccflags -qmaxmem=16384" ;; |
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91 | esac |
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92 | nm_opt='-B' |
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93 | ;; |
94 | esac |
95 | |
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96 | # These functions don't work like Perl expects them to. |
97 | d_setregid='undef' |
98 | d_setreuid='undef' |
99 | |
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100 | # Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com> |
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101 | # |
102 | # Tell perl which symbols to export for dynamic linking. |
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103 | case "$cc" in |
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104 | *gcc*) ccdlflags='-Xlinker' ;; |
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105 | esac |
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106 | # the required -bE:$installarchlib/CORE/perl.exp is added by |
107 | # libperl.U (Configure) later. |
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108 | |
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109 | case "$ldlibpthname" in |
110 | '') ldlibpthname=LIBPATH ;; |
111 | esac |
112 | |
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113 | # The first 3 options would not be needed if dynamic libs. could be linked |
114 | # with the compiler instead of ld. |
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115 | # -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary |
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116 | # -bE:$(BASEEXT).exp Export these symbols. This file contains only one |
117 | # symbol: boot_$(EXP) can it be auto-generated? |
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118 | case "$osvers" in |
119 | 3*) |
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120 | lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc" |
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121 | ;; |
122 | *) |
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123 | lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -b noentry -lc" |
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124 | ;; |
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125 | esac |
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126 | |
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127 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
128 | # after it has prompted the user for whether to use threads. |
129 | cat > UU/usethreads.cbu <<'EOCBU' |
130 | case "$usethreads" in |
131 | $define|true|[yY]*) |
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132 | ccflags="$ccflags -DNEED_PTHREAD_INIT" |
133 | case "$cc" in |
134 | gcc) ;; |
135 | cc_r) ;; |
136 | cc|xl[cC]_r) |
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137 | echo >&4 "Switching cc to cc_r because of POSIX threads." |
138 | # xlc_r has been known to produce buggy code in AIX 4.3.2. |
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139 | # (e.g. pragma/overload core dumps) Let's suspect xlC_r, too. |
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140 | # --jhi@iki.fi |
141 | cc=cc_r |
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142 | if test ! -e /bin/cc_r; then |
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143 | cat >&4 <<EOM |
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144 | For pthreads you should use the AIX C compiler cc_r. |
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145 | But I cannot find it as /bin/cc_r. |
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146 | Cannot continue, aborting. |
147 | EOM |
148 | fi |
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149 | ;; |
150 | '') |
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151 | cc=cc_r |
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152 | ;; |
153 | *) |
154 | cat >&4 <<EOM |
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155 | For pthreads you should use the AIX C compiler cc_r. |
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156 | (now your compiler was set to '$cc') |
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157 | Cannot continue, aborting. |
158 | EOM |
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159 | exit 1 |
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160 | ;; |
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161 | esac |
162 | |
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163 | # c_rify libswanted. |
164 | set `echo X "$libswanted "| sed -e 's/ \([cC]\) / \1_r /g'` |
165 | shift |
166 | libswanted="$*" |
167 | # c_rify lddlflags. |
168 | set `echo X "$lddlflags "| sed -e 's/ \(-l[cC]\) / \1_r /g'` |
169 | shift |
170 | lddlflags="$*" |
171 | |
172 | # Insert pthreads to libswanted, before any libc or libC. |
173 | set `echo X "$libswanted "| sed -e 's/ \([cC]\) / pthreads \1 /'` |
174 | shift |
175 | libswanted="$*" |
176 | # Insert pthreads to lddlflags, before any libc or libC. |
177 | set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]\) / -lpthreads \1 /'` |
178 | shift |
179 | lddlflags="$*" |
180 | |
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181 | ;; |
182 | esac |
183 | EOCBU |
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184 | |
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185 | # This script UU/uselfs.cbu will get 'called-back' by Configure |
186 | # after it has prompted the user for whether to use large files. |
187 | cat > UU/uselfs.cbu <<'EOCBU' |
188 | case "$uselargefiles" in |
189 | $define|true|[yY]*) |
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190 | lfcflags="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`" |
191 | lfldflags="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`" |
192 | # _Somehow_ in AIX 4.3.1.0 the above getconf call manages to |
193 | # insert(?) *something* to $ldflags so that later (in Configure) evaluating |
194 | # $ldflags causes a newline after the '-b64' (the result of the getconf). |
195 | # (nothing strange shows up in $ldflags even in hexdump; |
196 | # so it may be something in the shell, instead?) |
197 | # Try it out: just uncomment the below line and rerun Configure: |
198 | # echo >&4 "AIX 4.3.1.0 $lfldflags mystery" ; exit 1 |
199 | # Just don't ask me how AIX does it, I spent hours wondering. |
200 | # Therefore the line re-evaluating lfldflags: it seems to fix |
201 | # the whatever it was that AIX managed to break. --jhi |
202 | lfldflags="`echo $lfldflags`" |
203 | lflibs="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`" |
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204 | case "$lfcflags$lfldflags$lflibs" in |
205 | '');; |
206 | *) ccflags="$ccflags $lfcflags" |
207 | ldflags="$ldflags $ldldflags" |
208 | libswanted="$libswanted $lflibs" |
209 | ;; |
210 | esac |
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211 | lfcflags='' |
212 | lfldflags='' |
213 | lflibs='' |
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214 | ;; |
215 | esac |
216 | EOCBU |
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217 | |
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218 | # This script UU/use64bits.cbu will get 'called-back' by Configure |
219 | # after it has prompted the user for whether to use 64 bits. |
220 | cat > UU/use64bits.cbu <<'EOCBU' |
221 | case "$use64bits" in |
222 | $define|true|[yY]*) |
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223 | case "`oslevel`" in |
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224 | 3.*|4.[012].*) |
225 | cat >&4 <<EOM |
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226 | AIX `oslevel` does not support 64-bit interfaces. |
227 | You should upgrade to at least AIX 4.2. |
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228 | EOM |
229 | exit 1 |
230 | ;; |
231 | esac |
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232 | case "$ccflags" in |
233 | *-DUSE_LONG_LONG*) ;; |
234 | *) ccflags="$ccflags -DUSE_LONG_LONG" ;; |
235 | esac |
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236 | # When a 64-bit cc becomes available $archname64 |
237 | # may need setting so that $archname gets it attached. |
238 | ;; |
239 | esac |
240 | EOCBU |
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241 | |
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242 | # This script UU/uselongdouble.cbu will get 'called-back' by Configure |
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243 | # after it has prompted the user for whether to use long doubles. |
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244 | cat > UU/uselongdouble.cbu <<'EOCBU' |
245 | case "$uselongdouble" in |
246 | $define|true|[yY]*) |
247 | ccflags="$ccflags -qlongdouble" |
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248 | # The explicit cc128, xlc128, xlC128 are not needed, |
249 | # the -qlongdouble should do the trick. --jhi |
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250 | ;; |
251 | esac |
252 | EOCBU |
253 | |
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254 | # If the C++ libraries, libC and libC_r, are available we will prefer them |
255 | # over the vanilla libc, because the libC contain loadAndInit() and |
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256 | # terminateAndUnload() which work correctly with C++ statics while libc |
257 | # load() and unload() do not. See ext/DynaLoader/dl_aix.xs. |
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258 | # The C-to-C_r switch is done by usethreads.cbu, if needed. |
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259 | if test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then |
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260 | # Cify libswanted. |
261 | set `echo X "$libswanted "| sed -e 's/ c / C c /'` |
262 | shift |
263 | libswanted="$*" |
264 | # Cify lddlflags. |
265 | set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'` |
266 | shift |
267 | lddlflags="$*" |
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268 | fi |
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269 | |
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270 | # EOF |