From 0c7a029ed490e46ef192284d77eabbe22f5dfdf9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?=
 <zmoelnig@users.sourceforge.net>
Date: Tue, 7 Apr 2009 16:55:10 +0000
Subject: added checks for fat-binaries; LATER check whether this actually
 works

svn path=/trunk/externals/zexy/; revision=10970
---
 src/Make.config.in |  9 ++++-----
 src/Makefile       |  4 ++--
 src/configure.ac   | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 55 insertions(+), 7 deletions(-)

diff --git a/src/Make.config.in b/src/Make.config.in
index e1748db..33b2ad3 100644
--- a/src/Make.config.in
+++ b/src/Make.config.in
@@ -1,4 +1,5 @@
 LIBNAME    =@LIBNAME@
+TARNAME =  $(LIBNAME)-@LIBRARY_VERSION@.tgz
 
 # when build as a library this holds a pre-processor define
 # (e.g. "-DZEXY_LIBRARY")
@@ -23,12 +24,10 @@ AFLAGS =
 LFLAGS = @LFLAGS@
 WFLAGS =
 
-TARNAME =  $(LIBNAME)-@LIBRARY_VERSION@.tgz
-
-# ICCFLAGS=-march=pentiumiii -axK
 Z_CFLAGS = $(IFLAGS) $(DEFS) $(BUILDLIBRARY) -DPD $(WFLAGS) @CFLAGS@ $(CFLAGS)
-
+LIBS = @LIBS@
 MAKEDEP_FLAGS = @MAKEDEP_FLAGS@
+ARCH_FLAG = @ARCH_FLAG@
+
 CONFIGUREFLAGS = @CONFIGUREFLAGS@
 
-LIBS = @LIBS@
diff --git a/src/Makefile b/src/Makefile
index 86a472d..0e03580 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -61,7 +61,7 @@ all: $(OBJECTS)
 endif
 
 $(OBJECTS): %.$(EXT) : %.o
-	$(LD) $(LFLAGS) -o $@ $*.o $(LIBS)
+	$(LD) $(LFLAGS) $(ARCH_FLAG) -o $@ $*.o $(LIBS)
 	$(STRIP) $(STRIPFLAGS) $@
 
 $(LIBNAME): $(TARGETS) z_zexy.c z_zexy.h
@@ -69,7 +69,7 @@ $(LIBNAME): $(TARGETS) z_zexy.c z_zexy.h
 	$(STRIP) $(STRIPFLAGS) $@.$(EXT)
 
 $(TARGETS): %.o : %.c
-	$(CC) $(Z_CFLAGS) -c -o $@ $*.c
+	$(CC) $(Z_CFLAGS) $(ARCH_FLAG) -c -o $@ $*.c
 
 externals: $(OBJECTS)
 
diff --git a/src/configure.ac b/src/configure.ac
index c78e0b0..f3647d0 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -137,6 +137,55 @@ dnl Checks for library functions.
 AC_FUNC_MMAP
 AC_CHECK_FUNCS(select socket strerror)
 
+
+dnl checks for fat-binary
+AC_ARG_ENABLE(fat-binary,
+       [  --enable-fat-binary=ARCHS
+                          build an Apple Multi Architecture Binary (MAB);
+                          ARCHS is a comma-delimited list of architectures for
+                          which to build; if ARCHS is omitted, then the package
+                          will be built for all architectures supported by the
+                          platform (e.g. "ppc,i386" for MacOS/X and Darwin; 
+                          if this option is disabled or omitted entirely, then
+                          the package will be built only for the target 
+                          platform],
+       [fat_binary=$enableval], [fat_binary=no])
+if test "$fat_binary" != no; then
+    AC_MSG_CHECKING([target architectures])
+
+    # Respect TARGET_ARCHS setting from environment if available.
+    if test -z "$TARGET_ARCHS"; then
+   	# Respect ARCH given to --enable-fat-binary if present.
+     if test "$fat_binary" != yes; then
+	    TARGET_ARCHS=`echo "$fat_binary" | tr ',' ' '`
+     else
+	    # Choose a default set of architectures based upon platform.
+      TARGET_ARCHS="ppc i386"
+     fi
+    fi
+    AC_MSG_RESULT([$TARGET_ARCHS])
+
+   # /usr/lib/arch_tool -archify_list $TARGET_ARCHS
+   ARCH_FLAG=
+   for archs in $TARGET_ARCHS 
+   do
+    ARCH_FLAG="$ARCH_FLAG -arch $archs"
+   done
+
+   if test "x$ARCH_FLAG" != "x"; then
+    tmp_arch_cflags="$CFLAGS"
+    AC_CHECK_CFLAGS([$ARCH_FLAG],,ARCH_FLAG="")
+    CFLAGS="$tmp_arch_cflags"
+   fi
+
+   if test "x$ARCH_FLAG" != "x"; then
+    tmp_arch_ldflags="$LDFLAGS"
+    AC_CHECK_LDFLAGS([$ARCH_FLAG],,ARCH_FLAG="")
+    LDFLAGS="$tmp_arch_ldflags"
+   fi
+fi
+AC_SUBST(ARCH_FLAG)
+
 dnl check for "-mms-bitfields" cflag
 dnl why is there no generic compiler-check for a given flag ?
 dnl it would make things so easy: AC_CHECK_FLAG([-mms-bitfields],,)
-- 
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