| 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>. |
| 4 | # AIX 4.1 pthreading by Christopher Chan-Nui <channui@austin.ibm.com> and |
| 5 | # Jarkko Hietaniemi <jhi@iki.fi>. |
| 6 | # Merged on Mon Feb 6 10:22:35 EST 1995 by |
| 7 | # Andy Dougherty <doughera@lafcol.lafayette.edu> |
| 8 | |
| 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 |
| 20 | # [(added support for socks) Jul 99 SOCKS support rewritten] |
| 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 | # |
| 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 |
| 40 | # reset only their real user IDs. |
| 41 | d_setrgid='undef' |
| 42 | d_setruid='undef' |
| 43 | |
| 44 | alignbytes=8 |
| 45 | |
| 46 | case "$usemymalloc" in |
| 47 | '') usemymalloc='n' ;; |
| 48 | esac |
| 49 | |
| 50 | # Intuiting the existence of system calls under AIX is difficult, |
| 51 | # at best; the safest technique is to find them empirically. |
| 52 | |
| 53 | # AIX 4.3.* and above default to using nm for symbol extraction |
| 54 | case "$osvers" in |
| 55 | 3.*|4.1.*|4.2.*) |
| 56 | usenm='undef' |
| 57 | ;; |
| 58 | *) |
| 59 | usenm='true' |
| 60 | ;; |
| 61 | esac |
| 62 | |
| 63 | so="a" |
| 64 | dlext="o" |
| 65 | |
| 66 | # Trying to set this breaks the POSIX.c compilation |
| 67 | |
| 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 "$osvers" in |
| 77 | 3*) d_fchmod=undef |
| 78 | ccflags="$ccflags -D_ALL_SOURCE" |
| 79 | ;; |
| 80 | *) # These hints at least work for 4.x, possibly other systems too. |
| 81 | ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE" |
| 82 | case "$cc" in |
| 83 | *gcc*) ;; |
| 84 | *) ccflags="$ccflags -qmaxmem=16384" ;; |
| 85 | esac |
| 86 | nm_opt='-B' |
| 87 | ;; |
| 88 | esac |
| 89 | |
| 90 | # These functions don't work like Perl expects them to. |
| 91 | d_setregid='undef' |
| 92 | d_setreuid='undef' |
| 93 | |
| 94 | # Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com> |
| 95 | # |
| 96 | # Tell perl which symbols to export for dynamic linking. |
| 97 | case "$cc" in |
| 98 | *gcc*) ccdlflags='-Xlinker' ;; |
| 99 | esac |
| 100 | # the required -bE:$installarchlib/CORE/perl.exp is added by |
| 101 | # libperl.U (Configure) later. |
| 102 | |
| 103 | case "$ldlibpthname" in |
| 104 | '') ldlibpthname=LIBPATH ;; |
| 105 | esac |
| 106 | |
| 107 | # The first 3 options would not be needed if dynamic libs. could be linked |
| 108 | # with the compiler instead of ld. |
| 109 | # -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary |
| 110 | # -bE:$(BASEEXT).exp Export these symbols. This file contains only one |
| 111 | # symbol: boot_$(EXP) can it be auto-generated? |
| 112 | case "$osvers" in |
| 113 | 3*) |
| 114 | lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:$(PERL_INC)/perl.exp -bE:$(BASEEXT).exp -e _nostart -lc" |
| 115 | ;; |
| 116 | *) |
| 117 | lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:$(PERL_INC)/perl.exp -bE:$(BASEEXT).exp -b noentry -lc" |
| 118 | ;; |
| 119 | esac |
| 120 | |
| 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 | $define|true|[yY]*) |
| 126 | ccflags="$ccflags -DNEED_PTHREAD_INIT" |
| 127 | case "$cc" in |
| 128 | gcc) ;; |
| 129 | cc_r) ;; |
| 130 | cc|xl[cC]_r) |
| 131 | echo >&4 "Switching cc to cc_r because of POSIX threads." |
| 132 | # xlc_r has been known to produce buggy code in AIX 4.3.2. |
| 133 | # (e.g. pragma/overload core dumps) Let's suspect xlC_r, too. |
| 134 | # --jhi@iki.fi |
| 135 | cc=cc_r |
| 136 | if test ! -e /bin/cc_r; then |
| 137 | cat >&4 <<EOM |
| 138 | For pthreads you should use the AIX C compiler cc_r. |
| 139 | But I cannot find it as /bin/cc_r. |
| 140 | Cannot continue, aborting. |
| 141 | EOM |
| 142 | fi |
| 143 | ;; |
| 144 | '') |
| 145 | cc=cc_r |
| 146 | ;; |
| 147 | *) |
| 148 | cat >&4 <<EOM |
| 149 | For pthreads you should use the AIX C compiler cc_r. |
| 150 | (now your compiler was set to '$cc') |
| 151 | Cannot continue, aborting. |
| 152 | EOM |
| 153 | exit 1 |
| 154 | ;; |
| 155 | esac |
| 156 | |
| 157 | # The libC_r is to be preferred over the libc_r because otherwise |
| 158 | # extensions written in C++ using statics won't be initialized right; |
| 159 | # see ext/DynaLoader/dl_aix.xs. |
| 160 | if test -f /lib/libC_r.a; then |
| 161 | # C_rify libwanted. |
| 162 | set `echo X "$libswanted "| sed -e 's/ C / pthreads C_r /'` |
| 163 | shift |
| 164 | libswanted="$*" |
| 165 | # C_rify lddlflags. |
| 166 | set `echo X "$lddlflags"| sed -e 's/ -lc$/ -lpthreads -lC_r/'` |
| 167 | shift |
| 168 | lddlflags="$*" |
| 169 | else |
| 170 | # The POSIX threads library and the re-entrant libc to libswanted. |
| 171 | set `echo X "$libswanted "| sed -e 's/ c / pthreads c_r /'` |
| 172 | shift |
| 173 | libswanted="$*" |
| 174 | |
| 175 | # The POSIX threads library and the re-entrant libc to lddflags. |
| 176 | set `echo X "$lddlflags"| sed -e 's/ -lc$/ -lpthreads -lc_r/'` |
| 177 | shift |
| 178 | lddlflags="$*" |
| 179 | fi |
| 180 | ;; |
| 181 | esac |
| 182 | EOCBU |
| 183 | |
| 184 | # This script UU/use64bits.cbu will get 'called-back' by Configure |
| 185 | # after it has prompted the user for whether to use 64 bits. |
| 186 | cat > UU/use64bits.cbu <<'EOCBU' |
| 187 | case "$use64bits" in |
| 188 | $define|true|[yY]*) |
| 189 | case "`oslevel`" in |
| 190 | 3.*|4.[012].*) |
| 191 | cat >&4 <<EOM |
| 192 | AIX `oslevel` does not support 64-bit interfaces. |
| 193 | You should upgrade to at least AIX 4.2. |
| 194 | EOM |
| 195 | exit 1 |
| 196 | ;; |
| 197 | esac |
| 198 | ccflags="$ccflags -DUSE_LONG_LONG" |
| 199 | ccflags="$ccflags `getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`" |
| 200 | |
| 201 | ldflags="$ldflags `getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`" |
| 202 | # _Somehow_ in AIX 4.3.1.0 the above getconf call manages to |
| 203 | # insert(?) *something* to $ldflags so that later (in Configure) evaluating |
| 204 | # $ldflags causes a newline after the '-b64' (the result of the getconf). |
| 205 | # (nothing strange shows up in $ldflags even in hexdump; |
| 206 | # so it may be something in the shell, instead?) |
| 207 | # Try it out: just uncomment the below line and rerun Configure: |
| 208 | # echo >&4 "AIX $ldflags mystery" ; exit 1 |
| 209 | # Just don't ask me how AIX does it. |
| 210 | # Therefore the line re-evaluating ldflags: it seems to bypass |
| 211 | # the whatever it was that AIX managed to break. --jhi |
| 212 | ldflags="`echo $ldflags`" |
| 213 | |
| 214 | libswanted="$libswanted `getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`" |
| 215 | # When a 64-bit cc becomes available $archname64 |
| 216 | # may need setting so that $archname gets it attached. |
| 217 | ;; |
| 218 | esac |
| 219 | EOCBU |
| 220 | |
| 221 | # This script UU/uselongdouble.cbu will get 'called-back' by Configure |
| 222 | # after it has prompted the user for whether to use long doubles. |
| 223 | cat > UU/uselongdouble.cbu <<'EOCBU' |
| 224 | case "$uselongdouble" in |
| 225 | $define|true|[yY]*) |
| 226 | ccflags="$ccflags -qlongdouble" |
| 227 | # The explicit cc128, xlc128, xlC128 are not needed, |
| 228 | # the -qlongdouble should do the trick. --jhi |
| 229 | ;; |
| 230 | esac |
| 231 | EOCBU |
| 232 | |
| 233 | # If the C++ libraries, libC, are available we will prefer them over |
| 234 | # the vanilla libc, because the libC contain loadAndInitialize() and |
| 235 | # terminateAndUnload() which work correctly with C++ statics while libc |
| 236 | # load() and unload() do not. See ext/DynaLoader/dl_aix.xs. |
| 237 | # The c_r-to-C_r switch is done by usethreads.cbu. |
| 238 | test -f /lib/libC.a && libswanted=`$echo " $libswanted "|sed -e 's/ c / C /'` |
| 239 | |
| 240 | # EOF |