From 39d89a2d91f77d007abb3b031d49c55d91a9b868 Mon Sep 17 00:00:00 2001
From: vsc <vsc@b08c6af1-5177-4d33-ba66-4b1c6b8b522a>
Date: Tue, 23 Apr 2002 14:37:56 +0000
Subject: [PATCH] first changes towards dynamic loading in Darwin

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@450 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
---
 H/Foreign.h  |  9 +++++++++
 config.h.in  |  1 +
 configure.in | 10 +++++++++-
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/H/Foreign.h b/H/Foreign.h
index 93378d3d6..bb79e76c9 100644
--- a/H/Foreign.h
+++ b/H/Foreign.h
@@ -107,6 +107,15 @@
 #define LOAD_SHL 1
 #endif
 
+#if defined(__MACH__) && defined(__APPLE__)
+#ifdef NO_DYN
+#undef NO_DYN
+#endif
+#ifndef LOAD_DL
+#define LOAD_DL 1
+#endif
+#endif
+
 extern char YapExecutable[];
 
 extern char LoadMsg[];
diff --git a/config.h.in b/config.h.in
index ac847a182..4fe53868f 100644
--- a/config.h.in
+++ b/config.h.in
@@ -49,6 +49,7 @@
 #undef  HAVE_CTYPE_H
 #undef  HAVE_DIRECT_H
 #undef  HAVE_DIRENT_H
+#undef  HAVE_DLFCN_H
 #undef  HAVE_ERRNO_H
 #undef  HAVE_FCNTL_H
 #undef  HAVE_FENV_H
diff --git a/configure.in b/configure.in
index 0f6a0367c..9e1263666 100644
--- a/configure.in
+++ b/configure.in
@@ -452,6 +452,13 @@ case $target_os in
 	SHLIB_LD="ld -n32 -shared -rdata_shared"
 	INSTALL_DLLS=""
 	;;
+      *darwin*)
+	SHLIB_CFLAGS="-fno-common"
+	SHLIB_SUFFIX=".so"
+        DO_SECOND_LD=""
+	SHLIB_LD="cc -bundle -flat_namespace -undefined suppress"
+	INSTALL_DLLS=""
+	;;
       *netbsd*|*freebsd*)
 	if echo __ELF__ | ${CC:-cc} -E - | grep -q __ELF__
         then
@@ -548,7 +555,8 @@ esac
 dnl Checks for header files.
 AC_HEADER_STDC
 AC_HEADER_SYS_WAIT
-AC_CHECK_HEADERS(arpa/inet.h ctype.h direct.h dirent.h errno.h fcntl.h)
+AC_CHECK_HEADERS(arpa/inet.h ctype.h direct.h dirent.h dlfcn.h)
+AC_CHECK_HEADERS(errno.h fcntl.h)
 AC_CHECK_HEADERS(fenv.h fpu_control.h ieeefp.h io.h limits.h memory.h)
 AC_CHECK_HEADERS(netdb.h netinet/in.h regex.h)
 AC_CHECK_HEADERS(siginfo.h signal.h stdarg.h string.h stropts.h)