diff --git a/desmume/src/cocoa/DeSmuME.xcodeproj/project.pbxproj b/desmume/src/cocoa/DeSmuME.xcodeproj/project.pbxproj
index 643651bc6..58b0776db 100644
--- a/desmume/src/cocoa/DeSmuME.xcodeproj/project.pbxproj
+++ b/desmume/src/cocoa/DeSmuME.xcodeproj/project.pbxproj
@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 45;
+	objectVersion = 42;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -328,7 +328,7 @@
 		29B97313FDCFA39411CA2CEA /* Project object */ = {
 			isa = PBXProject;
 			buildConfigurationList = C01FCF4E08A954540054247B /* Build configuration list for PBXProject "DeSmuME" */;
-			compatibilityVersion = "Xcode 3.1";
+			compatibilityVersion = "Xcode 2.4";
 			hasScannedForEncodings = 1;
 			knownRegions = (
 				English,
@@ -463,7 +463,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
+				ARCHS = "$(ONLY_ACTIVE_ARCH_PRE_XCODE_3_1)";
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					HAVE_LIBZ,
@@ -472,10 +472,10 @@
 				GCC_TREAT_IMPLICIT_FUNCTION_DECLARATIONS_AS_ERRORS = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				ONLY_ACTIVE_ARCH = YES;
+				ONLY_ACTIVE_ARCH_PRE_XCODE_3_1 = "$(NATIVE_ARCH)";
 				OTHER_LDFLAGS = "-lz";
 				PREBINDING = NO;
-				SDKROOT = macosx10.4;
+				SDKROOT = /Developer/SDKs/MacOSX10.4u.sdk;
 			};
 			name = Debug;
 		};
@@ -483,7 +483,8 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
+				ARCHS = "$(ARCHS_STANDARD_32_BIT_PRE_XCODE_3_1)";
+				ARCHS_STANDARD_32_BIT_PRE_XCODE_3_1 = "ppc i386";
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					HAVE_LIBZ,
 					DESMUME_COCOA,
@@ -493,7 +494,7 @@
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				OTHER_LDFLAGS = "-lz";
 				PREBINDING = NO;
-				SDKROOT = macosx10.4;
+				SDKROOT = /Developer/SDKs/MacOSX10.4u.sdk;
 			};
 			name = Release;
 		};