Only build 64 bit and Lion for libgit2 also

Author: mxcl

GitX.xcodeproj/project.pbxproj

@@ -1588,7 +1588,6 @@
 				LIBRARY_SEARCH_PATHS = libgit2;
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				PRODUCT_NAME = GitX;
-				SDKROOT = macosx10.7;
 				WRAPPER_EXTENSION = app;
 				ZERO_LINK = YES;
 			};
@@ -1616,23 +1615,22 @@
 				LIBRARY_SEARCH_PATHS = libgit2;
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				PRODUCT_NAME = GitX;
-				SDKROOT = macosx10.7;
 				WRAPPER_EXTENSION = app;
 			};
 			name = Release;
 		};
 		26FC0A890875C7B200E6366F /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(NATIVE_ARCH_ACTUAL)";
+				ARCHS = "$(ARCHS_STANDARD_64_BIT)";
 				GCC_ENABLE_OBJC_GC = required;
 				GCC_PREPROCESSOR_DEFINITIONS = DEBUG;
 				GCC_PREPROCESSOR_DEFINITIONS_NOT_USED_IN_PRECOMPS = DEBUG_BUILD;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				INFOPLIST_PREPROCESS = YES;
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
-				SDKROOT = "$(DEVELOPER_SDK_DIR)/MacOSX10.5.sdk";
+				SDKROOT = macosx10.7;
 			};
 			name = Debug;
 		};
@@ -1646,7 +1644,7 @@
 				INFOPLIST_PREFIX_HEADER = $PROJECT_TEMP_DIR/revision;
 				INFOPLIST_PREPROCESS = YES;
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
-				SDKROOT = "$(DEVELOPER_SDK_DIR)/MacOSX10.5.sdk";
+				SDKROOT = macosx10.7;
 			};
 			name = Release;
 		};

build_libgit2.sh

@@ -17,7 +17,7 @@ buildAction () {
 		git submodule update
 		cd libgit2
 		rm -f libgit2.a
-		make CFLAGS="-arch i386 -arch ppc -arch x86_64"
+		make CFLAGS="-arch x86_64"
 		ranlib libgit2.a
 	else
 		echo "error: Not a git repository."