From 4d1d676dbaf674ed713ae3ecc3afee216d77e00b Mon Sep 17 00:00:00 2001
From: Oliver Kiddle <opk@users.sourceforge.net>
Date: Wed, 10 Oct 2001 16:02:24 +0000
Subject: enable dynamic libraries on MacOS X is the dlcompat library is
 installed

---
 ChangeLog         |  6 ++++++
 Etc/MACHINES      |  6 +++++-
 Test/C02cond.ztst |  1 +
 acconfig.h        |  2 +-
 zshconfig.ac      | 12 ++++++++++--
 5 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 9523f9b60..fc6b18392 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2001-10-10  Oliver Kiddle  <opk@zsh.org>
+
+	* 16xxx: acconfig.h, zshconfig.ac, Etc/MACHINES,
+	Test/C02cond.ztst: allow dynamic loading to work on MacOS X
+	if the dlcompat library is installed.
+
 2001-10-10  Clint Adams  <clint@zsh.org>
 
 	* 16000: Completion/Debian/Command/.distfiles,
diff --git a/Etc/MACHINES b/Etc/MACHINES
index eba4cb77c..3b62f27e3 100644
--- a/Etc/MACHINES
+++ b/Etc/MACHINES
@@ -18,7 +18,11 @@ Machines
 --------
 
 Apple: MacOS X/Darwin 1.4
-	Should build `out-of-the-box'. Dynamic loading does not work.
+	Should build `out-of-the-box'.
+
+	For dynamic loading to work, you need to use the dlcompat library.
+	It can be downloaded from:
+	    http://sourceforge.net/project/showfiles.php?group_id=17203
 
 Red Hat Inc.: Cygwin
 	Should build `out-of-the-box'.  The compilation directory should
diff --git a/Test/C02cond.ztst b/Test/C02cond.ztst
index 83f9b6de3..eafda1b5c 100644
--- a/Test/C02cond.ztst
+++ b/Test/C02cond.ztst
@@ -19,6 +19,7 @@
   chgrp $EGID modish
 
   chmod 7710 modish  # g+xs,u+s,+t
+  chmod g+s modish   # two lines combined work around chmod bugs
 
   touch unmodish
   chmod 000 unmodish
diff --git a/acconfig.h b/acconfig.h
index 2276d7d1d..1026f2b7b 100644
--- a/acconfig.h
+++ b/acconfig.h
@@ -259,7 +259,7 @@
 /* Define to 1 if multiple modules defining the same symbol are OK */
 #undef DYNAMIC_NAME_CLASH_OK
 
-/* The exension used for dynamically loaded modules */
+/* The extension used for dynamically loaded modules */
 #undef DL_EXT
 
 /* Define to 1 if you want to use dynamically loaded modules */
diff --git a/zshconfig.ac b/zshconfig.ac
index a3442e4be..c573359d9 100644
--- a/zshconfig.ac
+++ b/zshconfig.ac
@@ -1576,7 +1576,7 @@ elif test "$host_os" = cygwin; then
   MOD_IMPORT_VARIABLE="__attribute__((__dllimport__))"
   MOD_IMPORT_FUNCTION=
 elif test "x$dynamic" = xyes; then
-  AC_CACHE_CHECK(if your system use ELF binaries,
+  AC_CACHE_CHECK(if your system uses ELF binaries,
    zsh_cv_sys_elf,
    [AC_TRY_RUN([/* Test for whether ELF binaries are produced */
 #include <fcntl.h>
@@ -1623,6 +1623,10 @@ char *argv[];
 	esac
 	DLLDARG="${LDARG}"
       ;;
+      *darwin*)
+        DLLD="${DLLD=$CC}"
+        DLLDARG=""
+      ;;
       * )
 	DLLD="${DLLD=ld}"
 	DLLDARG=""
@@ -1630,7 +1634,10 @@ char *argv[];
     esac
   fi
   if test -n "$GCC"; then
-    DLCFLAGS="${DLCFLAGS=-fPIC}"
+    case "$host_os" in
+      darwin*) DLCFLAGS="${DLCFLAGS=-fno-common}" ;;
+      *)       DLCFLAGS="${DLCFLAGS=-fPIC}" ;;
+    esac
   else
     case "$host_os" in
       hpux*)                 DLCFLAGS="${DLCFLAGS=+z}" ;;
@@ -1646,6 +1653,7 @@ char *argv[];
     netbsd*)      DLLDFLAGS="${DLLDFLAGS=${DLLDARG}-x -shared --whole-archive}" ;;
     aix*)         DLLDFLAGS="${DLLDFLAGS=-G -bexpall -lc}" ;;
     solaris*|sysv4*|esix*) DLLDFLAGS="${DLLDFLAGS=-G}" ;;
+    darwin*)      DLLDFLAGS="${DLLDFLAGS=-bundle -flat_namespace -undefined suppress}" ;;
     openbsd*)
       if test $zsh_cv_sys_elf = yes; then
 	DLLDFLAGS="${DLLDFLAGS=-shared -fPIC}"
-- 
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