Support shared libperl on AIX

The current distribution will not build a shared libperl on AIX.

Currently the Makefile generated uses the same ld options for building
a shared libperl and dynamicly loaded extentions.  AIX's compiler
requires that you tell it explicitly what symbols to export/import. So,
it needs a separate set of LD options for each.

On top of all this, AIX doesn't seem to have an equivilent to
LD_LIBRARY_PATH. So, the directories to search during runtime must be
explicitly compiled in. In the following patch I compiled in both the
compilation directory (for miniperl and testing) and the installation
directory. I wish someone could suggest something cleaner, but it works.

p5p-msgid: 199704270131.UAA51426@icd.cc.purdue.edu

diff --git a/Configure b/Configure
index 0dbe17c..3644491 100755 (executable)
--- a/Configure
+++ b/Configure
@@ -4726,6 +4726,9 @@ xxx=''
 tmp_shrpenv=''
 if "$useshrplib"; then
     case "$osname" in 
+       aix)
+               # We'll set it in Makefile.SH...
+               ;;
        solaris|netbsd)
                xxx="-R $shrpdir"
                ;;

diff --git a/Makefile.SH b/Makefile.SH
index db4e759..16b523d 100755 (executable)
--- a/Makefile.SH
+++ b/Makefile.SH
@@ -24,6 +24,7 @@ case "$d_dosuid" in
 esac
 
 linklibperl='$(LIBPERL)'
+shrpldflags='$(LDDLFLAGS)'
 case "$useshrplib" in
 true)
        pldlflags="$cccdlflags"
@@ -37,6 +38,11 @@ true)
        sunos*|freebsd[23]*|netbsd*)
                linklibperl="-lperl"
                ;;
+       aix*)
+               shrpldflags="-H512 -T512 -bhalt:4 -bM:SRE -bE:perl.exp -b noentry -lc -lm -lbsd"
+               aixinstdir=`pwd | sed 's/\/UU$//'`
+               linklibperl="-L $archlibexp/CORE -L $aixinstdir -lperl"
+               ;;
        esac
        ;;
 *)     pldlflags=''
@@ -98,6 +104,7 @@ man3ext = $man3ext
 # The following are used to build and install shared libraries for
 # dynamic loading.
 LDDLFLAGS = $lddlflags
+SHRPLDFLAGS = $shrpldflags
 CCDLFLAGS = $ccdlflags
 DLSUFFIX = .$dlext
 PLDLFLAGS = $pldlflags
@@ -248,8 +255,18 @@ $(LIBPERL): $& perl$(OBJ_EXT) $(obj)
        case "$useshrplib" in
        true)
                $spitshell >>Makefile <<'!NO!SUBS!'
-       $(LD) $(LDDLFLAGS) -o $@ perl$(OBJ_EXT) $(obj)
+       $(LD) $(SHRPLDFLAGS) -o $@ perl$(OBJ_EXT) $(obj)
+!NO!SUBS!
+           case "$osname" in
+           aix)
+                   $spitshell >>Makefile <<'!NO!SUBS!'
+       mv $@ libperl$(OBJ_EXT)
+       $(AR) qv $(LIBPERL) libperl$(OBJ_EXT)
 !NO!SUBS!
+                     ;;
+           *)
+                     ;;
+           esac
                ;;
        *)
                $spitshell >>Makefile <<'!NO!SUBS!'

diff --git a/hints/aix.sh b/hints/aix.sh
index 6a9e545..2c42151 100644 (file)
--- a/hints/aix.sh
+++ b/hints/aix.sh
@@ -17,6 +17,9 @@ alignbytes=8
 
 usemymalloc='n'
 
+so="a"
+dlext="so"
+
 # Make setsockopt work correctly.  See man page.
 # ccflags='-D_BSD=44'