Patch 1471883: --enable-universalsdk on Mac OS X

1 files changed, 59 insertions, 1 deletions

diff --git a/configure.in b/configure.in
index c303445e9f..e2dae9d484 100644
--- a/configure.in
+++ b/configure.in
@@ -60,6 +60,29 @@ define_xopen_source=yes
 AC_SUBST(CONFIG_ARGS)
 CONFIG_ARGS="$ac_configure_args"
 
+AC_ARG_ENABLE(universalsdk,
+	AC_HELP_STRING(--enable-universalsdk@<:@SDKDIR@:>@, Build agains Mac OS X 10.4u SDK (ppc/i386)),
+[
+	case $enableval in
+	yes)
+		enableval=/Developer/SDKs/MacOSX10.4u.sdk
+		;;
+	esac
+	case $enableval in
+	no)
+		UNIVERSALSDK=
+		enable_universalsdk=
+		;;
+	*)
+		UNIVERSALSDK=$enableval
+		;;
+	esac
+],[
+   	UNIVERSALSDK=
+	enable_universalsdk=
+])
+AC_SUBST(UNIVERSALSDK)
+
 dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
 AC_ARG_ENABLE(framework,
               AC_HELP_STRING(--enable-framework@<:@=INSTALLDIR@:>@, Build (MacOSX|Darwin) framework),
@@ -258,7 +281,9 @@ AC_MSG_RESULT($EXTRAPLATDIR)
 # it may influence the way we can build extensions, so distutils
 # needs to check it
 AC_SUBST(CONFIGURE_MACOSX_DEPLOYMENT_TARGET)
+AC_SUBST(EXPORT_MACOSX_DEPLOYMENT_TARGET)
 CONFIGURE_MACOSX_DEPLOYMENT_TARGET=
+EXPORT_MACOSX_DEPLOYMENT_TARGET='#'
 
 # checks for alternative programs
 
@@ -740,6 +765,10 @@ yes)
 	# is there any other compiler on Darwin besides gcc?
 	Darwin*)
 	    BASECFLAGS="$BASECFLAGS -Wno-long-double -no-cpp-precomp -mno-fused-madd"
+	    if test "${enable_universalsdk}"; then
+		BASECFLAGS="-arch ppc -arch i386 -isysroot ${UNIVERSALSDK} ${BASECFLAGS}"
+	    fi
+
 	    ;;
 	OSF*)
 	    BASECFLAGS="$BASECFLAGS -mieee"
@@ -1263,7 +1292,12 @@ esac
 AC_SUBST(LIBTOOL_CRUFT)
 case $ac_sys_system/$ac_sys_release in
   Darwin/@<:@01567@:>@\..*) 
-    LIBTOOL_CRUFT="-framework System -lcc_dynamic -arch_only `arch`"
+    LIBTOOL_CRUFT="-framework System -lcc_dynamic"
+    if test "${enable_universalsdk}"; then
+	    :
+    else
+	LIBTOOL_CRUFT="${LIBTOOL_CRUFT} -arch_only `arch`"
+    fi
     LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -install_name $(PYTHONFRAMEWORKINSTALLDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
     LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -compatibility_version $(VERSION) -current_version $(VERSION)';;
   Darwin/*)
@@ -1386,9 +1420,16 @@ then
 		# Use -undefined dynamic_lookup whenever possible (10.3 and later).
 		# This allows an extension to be used in any Python
 		cur_target=`sw_vers -productVersion | sed 's/\(10\.[[0-9]]*\).*/\1/'`
+		if test ${cur_target} '>' 10.2; then
+			cur_target=10.3
+		fi
 		CONFIGURE_MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET-${cur_target}}
+		EXPORT_MACOSX_DEPLOYMENT_TARGET=''
 		if test ${MACOSX_DEPLOYMENT_TARGET-${cur_target}} '>' 10.2
 		then
+			if test "${enable_universalsdk}"; then
+				LDFLAGS="-arch i386 -arch ppc -isysroot ${UNIVERSALSDK} ${LDFLAGS}"
+			fi
 			LDSHARED='$(CC) $(LDFLAGS) -bundle -undefined dynamic_lookup'
 			BLDSHARED="$LDSHARED"
 		else
@@ -2873,6 +2914,23 @@ fi
 
 # check for endianness
 AC_C_BIGENDIAN
+AH_VERBATIM([WORDS_BIGENDIAN],
+[
+ /* Define to 1 if your processor stores words with the most significant byte
+    first (like Motorola and SPARC, unlike Intel and VAX). 
+
+    The block below does compile-time checking for endianness on platforms
+    that use GCC and therefore allows compiling fat binaries on OSX by using 
+    '-arch ppc -arch i386' as the compile flags. The phrasing was choosen
+    such that the configure-result is used on systems that don't use GCC.
+  */
+#ifdef __BIG_ENDIAN__
+#define WORDS_BIGENDIAN 1
+#else
+#ifndef __LITTLE_ENDIAN__
+#undef WORDS_BIGENDIAN
+#endif
+#endif])
 
 # Check whether right shifting a negative integer extends the sign bit
 # or fills with zeros (like the Cray J90, according to Tim Peters).