385 lines
11 KiB
Bash
385 lines
11 KiB
Bash
# hints/aix.sh
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# AIX 3.x.x hints thanks to Wayne Scott <wscott@ichips.intel.com>
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# AIX 4.1 hints thanks to Christopher Chan-Nui <channui@austin.ibm.com>.
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# AIX 4.1 pthreading by Christopher Chan-Nui <channui@austin.ibm.com> and
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# Jarkko Hietaniemi <jhi@iki.fi>.
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# AIX 4.3.x LP64 build by Steven Hirsch <hirschs@btv.ibm.com>
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# Merged on Mon Feb 6 10:22:35 EST 1995 by
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# Andy Dougherty <doughera@lafcol.lafayette.edu>
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#
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# Contact dfavor@corridor.com for any of the following:
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#
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# - AIX 43x and above support
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# - gcc + threads support
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# - socks support
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#
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# Apr 99 changes:
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#
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# - use nm in AIX 43x and above
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# - gcc + threads now builds
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# [(added support for socks) Jul 99 SOCKS support rewritten]
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#
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# Notes:
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#
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# - shared libperl support is tricky. if ever libperl.a ends up
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# in /usr/local/lib/* it can override any subsequent builds of
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# that same perl release. to make sure you know where the shared
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# libperl.a is coming from do a 'dump -Hv perl' and check all the
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# library search paths in the loader header.
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#
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# it would be nice to warn the user if a libperl.a exists that is
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# going to override the current build, but that would be complex.
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#
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# better yet, a solid fix for this situation should be developed.
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#
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# Configure finds setrgid and setruid, but they're useless. The man
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# pages state:
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# setrgid: The EPERM error code is always returned.
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# setruid: The EPERM error code is always returned. Processes cannot
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# reset only their real user IDs.
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d_setrgid='undef'
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d_setruid='undef'
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alignbytes=8
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case "$usemymalloc" in
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'') usemymalloc='n' ;;
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esac
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# Intuiting the existence of system calls under AIX is difficult,
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# at best; the safest technique is to find them empirically.
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# AIX 4.3.* and above default to using nm for symbol extraction
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case "$osvers" in
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3.*|4.1.*|4.2.*)
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usenm='undef'
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;;
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*)
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usenm='true'
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;;
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esac
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so="a"
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# AIX itself uses .o (libc.o) but we prefer compatibility
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# with the rest of the world and with rest of the scripting
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# languages (Tcl, Python) and related systems (SWIG).
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# Stephanie Beals <bealzy@us.ibm.com>
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dlext="so"
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# Take possible hint from the environment. If 32-bit is set in the
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# environment, we can override it later. If set for 64, the
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# 'sizeof' test sees a native 64-bit architecture and never looks back.
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case "$OBJECT_MODE" in
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32)
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cat >&4 <<EOF
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You have OBJECT_MODE=32 set in the environment.
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I take this as a hint you do not want to
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build for a 64-bit address space. You will be
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given the opportunity to change this later.
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EOF
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;;
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64)
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cat >&4 <<EOF
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You have OBJECT_MODE=64 set in the environment.
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This forces a full 64-bit build. If that is
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not what you intended, please terminate this
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program, unset it and restart.
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EOF
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;;
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*) ;;
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esac
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# Trying to set this breaks the POSIX.c compilation
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# Make setsockopt work correctly. See man page.
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# ccflags='-D_BSD=44'
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# uname -m output is too specific and not appropriate here
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case "$archname" in
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'') archname="$osname" ;;
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esac
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cc=${cc:-cc}
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case "$osvers" in
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3*) d_fchmod=undef
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ccflags="$ccflags -D_ALL_SOURCE"
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;;
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*) # These hints at least work for 4.x, possibly other systems too.
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ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
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case "$cc" in
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*gcc*) ;;
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*) ccflags="$ccflags -qmaxmem=16384" ;;
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esac
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nm_opt='-B'
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;;
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esac
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# These functions don't work like Perl expects them to.
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d_setregid='undef'
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d_setreuid='undef'
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# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
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#
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# Tell perl which symbols to export for dynamic linking.
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case "$cc" in
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*gcc*) ccdlflags='-Xlinker' ;;
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esac
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# the required -bE:$installarchlib/CORE/perl.exp is added by
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# libperl.U (Configure) later.
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case "$ldlibpthname" in
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'') ldlibpthname=LIBPATH ;;
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esac
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# The first 3 options would not be needed if dynamic libs. could be linked
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# with the compiler instead of ld.
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# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
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# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
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# symbol: boot_$(EXP) can it be auto-generated?
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case "$osvers" in
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3*)
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lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -e _nostart -lc"
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;;
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*)
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lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -b noentry -lc"
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;;
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esac
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# This script UU/usethreads.cbu will get 'called-back' by Configure
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# after it has prompted the user for whether to use threads.
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cat > UU/usethreads.cbu <<'EOCBU'
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case "$usethreads" in
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$define|true|[yY]*)
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ccflags="$ccflags -DNEED_PTHREAD_INIT"
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case "$cc" in
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gcc) ;;
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cc_r) ;;
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cc|xl[cC]_r)
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echo >&4 "Switching cc to cc_r because of POSIX threads."
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# xlc_r has been known to produce buggy code in AIX 4.3.2.
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# (e.g. pragma/overload core dumps) Let's suspect xlC_r, too.
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# --jhi@iki.fi
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cc=cc_r
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;;
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'')
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cc=cc_r
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;;
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*)
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cat >&4 <<EOM
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For pthreads you should use the AIX C compiler cc_r.
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(now your compiler was set to '$cc')
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Cannot continue, aborting.
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EOM
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exit 1
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;;
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esac
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# c_rify libswanted.
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set `echo X "$libswanted "| sed -e 's/ \([cC]\) / \1_r /g'`
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shift
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libswanted="$*"
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# c_rify lddlflags.
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set `echo X "$lddlflags "| sed -e 's/ \(-l[cC]\) / \1_r /g'`
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shift
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lddlflags="$*"
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# Insert pthreads to libswanted, before any libc or libC.
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set `echo X "$libswanted "| sed -e 's/ \([cC]\) / pthreads \1 /'`
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shift
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libswanted="$*"
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# Insert pthreads to lddlflags, before any libc or libC.
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set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]\) / -lpthreads \1 /'`
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shift
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lddlflags="$*"
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;;
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esac
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EOCBU
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# This script UU/uselargefiles.cbu will get 'called-back' by Configure
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# after it has prompted the user for whether to use large files.
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cat > UU/uselargefiles.cbu <<'EOCBU'
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case "$uselargefiles" in
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''|$define|true|[yY]*)
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lfcflags="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
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lfldflags="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
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# _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
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# insert(?) *something* to $ldflags so that later (in Configure) evaluating
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# $ldflags causes a newline after the '-b64' (the result of the getconf).
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# (nothing strange shows up in $ldflags even in hexdump;
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# so it may be something in the shell, instead?)
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# Try it out: just uncomment the below line and rerun Configure:
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# echo >&4 "AIX 4.3.1.0 $lfldflags mystery" ; exit 1
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# Just don't ask me how AIX does it, I spent hours wondering.
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# Therefore the line re-evaluating lfldflags: it seems to fix
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# the whatever it was that AIX managed to break. --jhi
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lfldflags="`echo $lfldflags`"
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lflibs="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
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case "$lfcflags$lfldflags$lflibs" in
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'');;
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*) ccflags="$ccflags $lfcflags"
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ldflags="$ldflags $lfldflags"
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libswanted="$libswanted $lflibs"
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;;
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esac
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lfcflags=''
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lfldflags=''
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lflibs=''
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;;
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esac
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EOCBU
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# This script UU/use64bitint.cbu will get 'called-back' by Configure
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# after it has prompted the user for whether to use 64 bit integers.
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cat > UU/use64bitint.cbu <<'EOCBU'
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case "$use64bitint" in
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$define|true|[yY]*)
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case "`oslevel`" in
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3.*|4.[012].*)
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cat >&4 <<EOM
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AIX `oslevel` does not support 64-bit interfaces.
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You should upgrade to at least AIX 4.3.
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EOM
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exit 1
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;;
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esac
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;;
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esac
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EOCBU
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cat > UU/use64bitall.cbu <<'EOCBU'
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# This script UU/use64bitall.cbu will get 'called-back' by Configure
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# after it has prompted the user for whether to be maximally 64-bitty.
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case "$use64bitall" in
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$define|true|[yY]*)
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case "`oslevel`" in
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3.*|4.[012].*)
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cat >&4 <<EOM
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AIX `oslevel` does not support 64-bit interfaces.
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You should upgrade to at least AIX 4.3.
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EOM
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exit 1
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;;
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esac
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echo " "
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echo "Checking the CPU width of your hardware..." >&4
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$cat >size.c <<EOCP
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#include <stdio.h>
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#include <sys/systemcfg.h>
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int main (void)
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{
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printf("%d\n",_system_configuration.width);
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return(0);
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}
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EOCP
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set size
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if eval $compile_ok; then
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lfcpuwidth=`./size`
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echo "You are running on $lfcpuwidth bit hardware."
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else
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dflt="32"
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echo " "
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echo "(I can't seem to compile the test program. Guessing...)"
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rp="What is the width of your CPU (in bits)?"
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. ./myread
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lfcpuwidth="$ans"
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fi
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$rm -f size.c size
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case "$lfcpuwidth" in
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32*)
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cat >&4 <<EOM
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Bzzzt! At present, you can only perform a
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full 64-bit build on a 64-bit machine.
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EOM
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exit 1
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;;
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esac
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lfcflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
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lfldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
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# See jhi's comments above regarding this re-eval. I've
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# seen similar weirdness in the form of:
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#
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# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
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#
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# error messages from 'cc -E' invocation. Again, the offending
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# string is simply not detectable by any means. Since it doesn't
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# do any harm, I didn't pursue it. -- sh
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lfldflags="`echo $lfldflags`"
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lflibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
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# -q32 and -b32 may have been set by uselargefiles or user.
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# Remove them.
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ccflags="`echo $ccflags | sed -e 's@-q32@@'`"
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ldflags="`echo $ldflags | sed -e 's@-b32@@'`"
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# Tell archiver to use large format. Unless we remove 'ar'
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# from 'trylist', the Configure script will just reset it to 'ar'
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# immediately prior to writing config.sh. This took me hours
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# to figure out.
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trylist="`echo $trylist | sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
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ar="ar -X64"
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nm_opt="-X64 $nm_opt"
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# Note: Placing the 'lfcflags' variable into the 'ldflags' string
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# is NOT a typo. ldlflags is passed to the C compiler for final
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# linking, and it wants -q64 (-b64 is for ld only!).
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case "$lfcflags$lfldflags$lflibs" in
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'');;
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*) ccflags="$ccflags $lfcflags"
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ldflags="$ldflags $lfcflags"
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lddlflags="$lfldflags $lddlflags"
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libswanted="$libswanted $lflibs"
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;;
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esac
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case "$ccflags" in
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*-DUSE_64_BIT_ALL*) ;;
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*) ccflags="$ccflags -DUSE_64_BIT_ALL";;
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esac
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case "$archname64" in
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''|64*) archname64=64all ;;
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esac
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longsize="8"
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# Don't try backwards compatibility
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bincompat="$undef"
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d_bincompat5005="$undef"
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lfcflags=''
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lfldflags=''
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lflibs=''
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lfcpuwidth=''
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;;
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esac
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EOCBU
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cat > UU/uselongdouble.cbu <<'EOCBU'
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# This script UU/uselongdouble.cbu will get 'called-back' by Configure
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# after it has prompted the user for whether to use long doubles.
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case "$uselongdouble" in
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$define|true|[yY]*)
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ccflags="$ccflags -qlongdouble"
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# The explicit cc128, xlc128, xlC128 are not needed,
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# the -qlongdouble should do the trick. --jhi
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d_Gconvert='sprintf((b),"%.*llg",(n),(x))'
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;;
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esac
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EOCBU
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# If the C++ libraries, libC and libC_r, are available we will prefer them
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# over the vanilla libc, because the libC contain loadAndInit() and
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# terminateAndUnload() which work correctly with C++ statics while libc
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# load() and unload() do not. See ext/DynaLoader/dl_aix.xs.
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# The C-to-C_r switch is done by usethreads.cbu, if needed.
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if test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then
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# Cify libswanted.
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set `echo X "$libswanted "| sed -e 's/ c / C c /'`
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shift
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libswanted="$*"
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# Cify lddlflags.
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set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'`
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shift
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lddlflags="$*"
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fi
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# EOF
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