X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=hints%2Faix.sh;h=5a027b38373dd9494b834d4027c12b48a53db0d2;hb=b5bd348c152c57fd6f24ee9faee1eb4d9968f632;hp=6a9e54570a9465bb1c7237880af98c0688b6f025;hpb=9018c6a0ad2eec720793b9f87c9c80e676660aeb;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/hints/aix.sh b/hints/aix.sh
index 6a9e545..5a027b3 100644
--- a/hints/aix.sh
+++ b/hints/aix.sh
@@ -1,9 +1,37 @@
 # hints/aix.sh
 # AIX 3.x.x hints thanks to Wayne Scott <wscott@ichips.intel.com>
 # AIX 4.1 hints thanks to Christopher Chan-Nui <channui@austin.ibm.com>.
+# AIX 4.1 pthreading by Christopher Chan-Nui <channui@austin.ibm.com> and
+#         Jarkko Hietaniemi <jhi@iki.fi>.
 # Merged on Mon Feb  6 10:22:35 EST 1995 by
 #   Andy Dougherty  <doughera@lafcol.lafayette.edu>
 
+#
+# Contact dfavor@corridor.com for any of the following:
+#
+#    - AIX 43x and above support
+#    - gcc + threads support
+#    - socks support
+#
+# Apr 99 changes:
+#
+#    - use nm in AIX 43x and above
+#    - gcc + threads now builds
+#    [(added support for socks) Jul 99 SOCKS support rewritten]
+#
+# Notes:
+#
+#    - shared libperl support is tricky. if ever libperl.a ends up
+#      in /usr/local/lib/* it can override any subsequent builds of
+#      that same perl release. to make sure you know where the shared
+#      libperl.a is coming from do a 'dump -Hv perl' and check all the
+#      library search paths in the loader header.
+#
+#      it would be nice to warn the user if a libperl.a exists that is
+#      going to override the current build, but that would be complex.
+#
+#      better yet, a solid fix for this situation should be developed.
+#
 
 # Configure finds setrgid and setruid, but they're useless.  The man
 # pages state:
@@ -15,7 +43,27 @@ d_setruid='undef'
 
 alignbytes=8
 
-usemymalloc='n'
+case "$usemymalloc" in
+'')  usemymalloc='n' ;;
+esac
+
+# Intuiting the existence of system calls under AIX is difficult,
+# at best; the safest technique is to find them empirically.
+
+# AIX 4.3.* and above default to using nm for symbol extraction
+case "$osvers" in
+   3.*|4.1.*|4.2.*)
+      usenm='undef'
+      ;;
+   *)
+      usenm='true'
+      ;;
+esac
+
+so="a"
+dlext="o"
+
+# Trying to set this breaks the POSIX.c compilation
 
 # Make setsockopt work correctly.  See man page.
 # ccflags='-D_BSD=44'
@@ -27,13 +75,13 @@ esac
 
 case "$osvers" in
 3*) d_fchmod=undef
-    ccflags='-D_ALL_SOURCE'
+    ccflags="$ccflags -D_ALL_SOURCE"
     ;;
 *)  # These hints at least work for 4.x, possibly other systems too.
-    ccflags='-D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE'
+    ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
     case "$cc" in
      *gcc*) ;;
-     *) ccflags="-qmaxmem=8192  $ccflags" ;;
+     *) ccflags="$ccflags -qmaxmem=16384" ;;
     esac
     nm_opt='-B'
     ;;
@@ -43,18 +91,17 @@ esac
 d_setregid='undef'
 d_setreuid='undef'
 
-# The optimizer in 4.1.1 apparently generates bad code for scope.c.
-# Configure doesn't offer an easy way to propagate extra variables
-# only for certain cases, so the following contortion is required:
-# This is probably not needed in 5.002 and later.
-# scope_cflags='case "$osvers" in 4.1*) optimize=" ";; esac'
-
 # Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
 #
 # Tell perl which symbols to export for dynamic linking.
 case "$cc" in
-*gcc*) ccdlflags='-Xlinker -bE:perl.exp' ;;
-*) ccdlflags='-bE:perl.exp' ;;
+*gcc*) ccdlflags='-Xlinker' ;;
+esac
+# the required -bE:$installarchlib/CORE/perl.exp is added by
+# libperl.U (Configure) later.
+
+case "$ldlibpthname" in
+'') ldlibpthname=LIBPATH ;;
 esac
 
 # The first 3 options would not be needed if dynamic libs. could be linked
@@ -64,10 +111,109 @@ esac
 #                           symbol: boot_$(EXP)  can it be auto-generated?
 case "$osvers" in
 3*) 
-lddlflags='-H512 -T512 -bhalt:4 -bM:SRE -bI:$(PERL_INC)/perl.exp -bE:$(BASEEXT).exp -e _nostart -lc'
+    lddlflags="$lddlflags -H512 -T512 -bhalt:4 -bM:SRE -bI:$(PERL_INC)/perl.exp -bE:$(BASEEXT).exp -e _nostart -lc"
     ;;
 *) 
-lddlflags='-H512 -T512 -bhalt:4 -bM:SRE -bI:$(PERL_INC)/perl.exp -bE:$(BASEEXT).exp -b noentry -lc'
+    lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:$(PERL_INC)/perl.exp -bE:$(BASEEXT).exp -b noentry -lc"
+    ;;
+esac
+
+# This script UU/usethreads.cbu will get 'called-back' by Configure 
+# after it has prompted the user for whether to use threads.
+cat > UU/usethreads.cbu <<'EOCBU'
+case "$usethreads" in
+$define|true|[yY]*)
+        ccflags="$ccflags -DNEED_PTHREAD_INIT"
+        case "$cc" in
+        gcc) ;;
+        cc_r) ;;
+        cc|xlc_r) 
+	    echo >&4 "Switching cc to cc_r because of POSIX threads."
+	    # xlc_r has been known to produce buggy code in AIX 4.3.2.
+	    # (e.g. pragma/overload core dumps)
+	    # --jhi@iki.fi
+	    cc=cc_r
+	    if test ! -e /bin/cc_r; then
+	 	    cat >&4 <<EOM
+For pthreads you should use the AIX C compiler cc_r.
+But I cannot find it in /bin.
+Cannot continue, aborting.
+EOM
+	    fi
+            ;;
+        '') 
+	    cc=cc_r
+            ;;
+        *)
+ 	    cat >&4 <<EOM
+For pthreads you should use the AIX C compiler cc_r.
+(now your compiler was set to '$cc')
+Cannot continue, aborting.
+EOM
+ 	    exit 1
+	    ;;
+        esac
+
+        # Add the POSIX threads library and the re-entrant libc to lddflags.
+        set `echo X "$lddlflags"| sed -e 's/ -lc$/ -lpthreads -lc_r/'`
+        shift
+        lddlflags="$*"
 
-;;
+        # Add the POSIX threads library and the re-entrant libc to libswanted.
+        # Make sure the c_r library is before the c library or
+        # make will fail.
+        set `echo X "$libswanted "| sed -e 's/ c / pthreads c_r /'`
+        shift
+        libswanted="$*"
+	;;
 esac
+EOCBU
+
+# This script UU/use64bits.cbu will get 'called-back' by Configure 
+# after it has prompted the user for whether to use 64 bits.
+cat > UU/use64bits.cbu <<'EOCBU'
+case "$use64bits" in
+$define|true|[yY]*)
+	    case "`oslevel`" in
+	    3.*|4.[012].*)
+		cat >&4 <<EOM
+AIX `oslevel` does not support 64-bit interfaces.
+You should upgrade to at least AIX 4.2.
+EOM
+		exit 1
+		;;
+	    esac
+    	    ccflags="$ccflags -DUSE_LONG_LONG"
+	    ccflags="$ccflags `getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
+
+	    ldflags="$ldflags `getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
+	    # _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
+	    # insert(?) *something* to $ldflags so that later (in Configure) evaluating
+	    # $ldflags causes a newline after the '-b64' (the result of the getconf).
+	    # (nothing strange shows up in $ldflags even in hexdump;
+	    #  so it may be something in the shell, instead?)
+	    # Try it out: just uncomment the below line and rerun Configure:
+#	    echo >& "AIX $ldflags mystery" ; exit 1
+	    # Just don't ask me how AIX does it.
+	    # Therefore the line re-evaluating ldflags: it seems to bypass
+	    # the whatever it was AIX managed to break. --jhi
+	    ldflags="`echo $ldflags`"
+
+	    libswanted="$libswanted `getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
+	    # When a 64-bit cc becomes available $archname64
+	    # may need setting so that $archname gets it attached.
+	    ;;
+esac
+EOCBU
+
+# This script UU/uselongdouble.cbu will get 'called-back' by Configure 
+# after it has prompted the user for whether to use long doubles.
+cat > UU/uselongdouble.cbu <<'EOCBU'
+case "$uselongdouble" in
+$define|true|[yY]*)
+	ccflags="$ccflags -qlongdouble"
+	;;
+esac
+EOCBU
+
+# EOF