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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 | dlext="o" |
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65 | |
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66 | # Trying to set this breaks the POSIX.c compilation |
67 | |
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68 | # Make setsockopt work correctly. See man page. |
69 | # ccflags='-D_BSD=44' |
70 | |
71 | # uname -m output is too specific and not appropriate here |
72 | case "$archname" in |
73 | '') archname="$osname" ;; |
74 | esac |
75 | |
76 | case "$osvers" in |
77 | 3*) d_fchmod=undef |
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78 | ccflags="$ccflags -D_ALL_SOURCE" |
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79 | ;; |
80 | *) # These hints at least work for 4.x, possibly other systems too. |
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81 | ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE" |
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82 | case "$cc" in |
83 | *gcc*) ;; |
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84 | *) ccflags="$ccflags -qmaxmem=16384" ;; |
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85 | esac |
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86 | nm_opt='-B' |
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87 | ;; |
88 | esac |
89 | |
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90 | # These functions don't work like Perl expects them to. |
91 | d_setregid='undef' |
92 | d_setreuid='undef' |
93 | |
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94 | # Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com> |
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95 | # |
96 | # Tell perl which symbols to export for dynamic linking. |
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97 | case "$cc" in |
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98 | *gcc*) ccdlflags='-Xlinker' ;; |
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99 | esac |
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100 | # the required -bE:$installarchlib/CORE/perl.exp is added by |
101 | # libperl.U (Configure) later. |
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102 | |
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103 | case "$ldlibpthname" in |
104 | '') ldlibpthname=LIBPATH ;; |
105 | esac |
106 | |
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107 | # The first 3 options would not be needed if dynamic libs. could be linked |
108 | # with the compiler instead of ld. |
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109 | # -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary |
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110 | # -bE:$(BASEEXT).exp Export these symbols. This file contains only one |
111 | # symbol: boot_$(EXP) can it be auto-generated? |
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112 | case "$osvers" in |
113 | 3*) |
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114 | lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:$(PERL_INC)/perl.exp -bE:$(BASEEXT).exp -e _nostart -lc" |
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115 | ;; |
116 | *) |
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117 | lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:$(PERL_INC)/perl.exp -bE:$(BASEEXT).exp -b noentry -lc" |
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118 | ;; |
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119 | esac |
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120 | |
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121 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
122 | # after it has prompted the user for whether to use threads. |
123 | cat > UU/usethreads.cbu <<'EOCBU' |
124 | case "$usethreads" in |
125 | $define|true|[yY]*) |
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126 | ccflags="$ccflags -DNEED_PTHREAD_INIT" |
127 | case "$cc" in |
128 | gcc) ;; |
129 | cc_r) ;; |
130 | cc|xl[cC]_r) |
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131 | echo >&4 "Switching cc to cc_r because of POSIX threads." |
132 | # xlc_r has been known to produce buggy code in AIX 4.3.2. |
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133 | # (e.g. pragma/overload core dumps) Let's suspect xlC_r, too. |
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134 | # --jhi@iki.fi |
135 | cc=cc_r |
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136 | if test ! -e /bin/cc_r; then |
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137 | cat >&4 <<EOM |
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138 | For pthreads you should use the AIX C compiler cc_r. |
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139 | But I cannot find it as /bin/cc_r. |
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140 | Cannot continue, aborting. |
141 | EOM |
142 | fi |
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143 | ;; |
144 | '') |
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145 | cc=cc_r |
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146 | ;; |
147 | *) |
148 | cat >&4 <<EOM |
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149 | For pthreads you should use the AIX C compiler cc_r. |
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150 | (now your compiler was set to '$cc') |
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151 | Cannot continue, aborting. |
152 | EOM |
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153 | exit 1 |
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154 | ;; |
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155 | esac |
156 | |
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157 | # c_rify libswanted. |
158 | set `echo X "$libswanted "| sed -e 's/ \([cC]\) / \1_r /g'` |
159 | shift |
160 | libswanted="$*" |
161 | # c_rify lddlflags. |
162 | set `echo X "$lddlflags "| sed -e 's/ \(-l[cC]\) / \1_r /g'` |
163 | shift |
164 | lddlflags="$*" |
165 | |
166 | # Insert pthreads to libswanted, before any libc or libC. |
167 | set `echo X "$libswanted "| sed -e 's/ \([cC]\) / pthreads \1 /'` |
168 | shift |
169 | libswanted="$*" |
170 | # Insert pthreads to lddlflags, before any libc or libC. |
171 | set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]\) / -lpthreads \1 /'` |
172 | shift |
173 | lddlflags="$*" |
174 | |
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175 | ;; |
176 | esac |
177 | EOCBU |
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178 | |
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179 | # This script UU/use64bits.cbu will get 'called-back' by Configure |
180 | # after it has prompted the user for whether to use 64 bits. |
181 | cat > UU/use64bits.cbu <<'EOCBU' |
182 | case "$use64bits" in |
183 | $define|true|[yY]*) |
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184 | case "`oslevel`" in |
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185 | 3.*|4.[012].*) |
186 | cat >&4 <<EOM |
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187 | AIX `oslevel` does not support 64-bit interfaces. |
188 | You should upgrade to at least AIX 4.2. |
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189 | EOM |
190 | exit 1 |
191 | ;; |
192 | esac |
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193 | ccflags="$ccflags -DUSE_LONG_LONG" |
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194 | ccflags="$ccflags `getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`" |
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195 | |
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196 | ldflags="$ldflags `getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`" |
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197 | # _Somehow_ in AIX 4.3.1.0 the above getconf call manages to |
198 | # insert(?) *something* to $ldflags so that later (in Configure) evaluating |
199 | # $ldflags causes a newline after the '-b64' (the result of the getconf). |
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200 | # (nothing strange shows up in $ldflags even in hexdump; |
201 | # so it may be something in the shell, instead?) |
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202 | # Try it out: just uncomment the below line and rerun Configure: |
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203 | # echo >&4 "AIX 4.3.1.0 $ldflags mystery" ; exit 1 |
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204 | # Just don't ask me how AIX does it. |
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205 | # Therefore the line re-evaluating ldflags: it seems to bypass |
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206 | # the whatever it was that AIX managed to break. --jhi |
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207 | ldflags="`echo $ldflags`" |
208 | |
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209 | libswanted="$libswanted `getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`" |
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210 | # When a 64-bit cc becomes available $archname64 |
211 | # may need setting so that $archname gets it attached. |
212 | ;; |
213 | esac |
214 | EOCBU |
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215 | |
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216 | # This script UU/uselongdouble.cbu will get 'called-back' by Configure |
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217 | # after it has prompted the user for whether to use long doubles. |
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218 | cat > UU/uselongdouble.cbu <<'EOCBU' |
219 | case "$uselongdouble" in |
220 | $define|true|[yY]*) |
221 | ccflags="$ccflags -qlongdouble" |
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222 | # The explicit cc128, xlc128, xlC128 are not needed, |
223 | # the -qlongdouble should do the trick. --jhi |
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224 | ;; |
225 | esac |
226 | EOCBU |
227 | |
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228 | # If the C++ libraries, libC and libC_r, are available we will prefer them |
229 | # over the vanilla libc, because the libC contain loadAndInit() and |
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230 | # terminateAndUnload() which work correctly with C++ statics while libc |
231 | # load() and unload() do not. See ext/DynaLoader/dl_aix.xs. |
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232 | # The C-to-C_r switch is done by usethreads.cbu, if needed. |
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233 | if test -f /lib/libC.a -a X"$gccversion" = X; then |
234 | # Cify libswanted. |
235 | set `echo X "$libswanted "| sed -e 's/ c / C c /'` |
236 | shift |
237 | libswanted="$*" |
238 | # Cify lddlflags. |
239 | set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'` |
240 | shift |
241 | lddlflags="$*" |
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242 | fi |
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243 | |
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244 | # EOF |