enabled HAVE_LIBZ by default for Cocoa builds. this enables save states for people building from source

desmume/src/cocoa/DeSmuME.cbp

@@ -70,13 +70,14 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA]]>
 		<Compiler>
 			<Add option="-fexpensive-optimizations" />
 			<Add option="-O3" />
-			<Add option="-g" />
 			<Add option="-DDESMUME_COCOA" />
+			<Add option="-DHAVE_LIBZ" />
 		</Compiler>
 		<Linker>
 			<Add option="-framework Cocoa" />
 			<Add option="-framework OpenGL" />
 			<Add option="-framework AudioUnit" />
+			<Add option="-lz" />
 		</Linker>
 		<ExtraCommands>
 			<Add after="./makeapp.sh" />

desmume/src/cocoa/DeSmuME.xcodeproj/project.pbxproj

@@ -465,11 +465,15 @@
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				GCC_OPTIMIZATION_LEVEL = 0;
-				GCC_PREPROCESSOR_DEFINITIONS = DESMUME_COCOA;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					HAVE_LIBZ,
+					DESMUME_COCOA,
+				);
 				GCC_TREAT_IMPLICIT_FUNCTION_DECLARATIONS_AS_ERRORS = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				ONLY_ACTIVE_ARCH = YES;
+				OTHER_LDFLAGS = "-lz";
 				PREBINDING = NO;
 				SDKROOT = macosx10.4;
 			};
@@ -480,10 +484,14 @@
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
-				GCC_PREPROCESSOR_DEFINITIONS = DESMUME_COCOA;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					HAVE_LIBZ,
+					DESMUME_COCOA,
+				);
 				GCC_TREAT_IMPLICIT_FUNCTION_DECLARATIONS_AS_ERRORS = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
+				OTHER_LDFLAGS = "-lz";
 				PREBINDING = NO;
 				SDKROOT = macosx10.4;
 			};

desmume/src/cocoa/main.m

@@ -174,7 +174,7 @@ void CreateMenu(AppDelegate *delegate)
 
 	[file addItem:[NSMenuItem separatorItem]];
 
-	temp = [file addItemWithTitle:NSLocalizedString(@"Save State", nil) action:@selector(saveTo:) keyEquivalent:@""];
+	temp = [file addItemWithTitle:NSLocalizedString(@"Save State", nil) action:nil keyEquivalent:@""];
 	NSMenu *save_state_menu = [[NSMenu alloc] initWithTitle:NSLocalizedString(@"Save State", nil)];
 	[temp setSubmenu:save_state_menu];
 
@@ -185,11 +185,9 @@ void CreateMenu(AppDelegate *delegate)
 	for(i = 0; i < SAVE_SLOTS; i++)
 	{
 		saveSlot_item[i] = [save_state_menu addItemWithTitle:[NSString stringWithFormat:NSLocalizedString(@"Slot %d", nil), i] action:@selector(saveToSlot:) keyEquivalent:@""];
-		[saveSlot_item[i] setEnabled:NO];
-
 		loadSlot_item[i] = [load_state_menu addItemWithTitle:[saveSlot_item[i] title] action:@selector(loadFromSlot:) keyEquivalent:@""];
-		[loadSlot_item[i] setEnabled:NO];
 	}
+
 //fixme changed save state item function names
 /* To be implemented when saves.h provides
 a way to get the time of a save that's not string/human formatted...
@@ -225,6 +223,10 @@ a way to get the time of a save that's not a string / human formatted...
 
 	temp = [load_state_menu addItemWithTitle:@"View States" action:nil keyEquivalent:@""];
 */
+
+	[save_state_menu release];
+	[load_state_menu release];
+	
 #else
 	for(i = 0; i < SAVE_SLOTS; i++)
 	{

desmume/src/cocoa/main_window.m

@@ -1275,7 +1275,6 @@ NSMenuItem *screenshot_to_file_item;
 		[volume_item[i] setTarget:self];
 	}
 
-
 	//Update the ROM Info window
 	if([self ROMLoaded] == YES)
 		[ROMInfo changeDS:self];
@@ -1288,13 +1287,14 @@ NSMenuItem *screenshot_to_file_item;
 	//This function is called automaticlly by Cocoa
 	//when it needs to know if a menu item should be greyed out
 
+	int i;
+
 	if([self ROMLoaded] == NO)
 	{ //if no rom is loaded, various options are disables
 		if(item == close_rom_item)return NO;
 		if(item == rom_info_item)return NO;
 		if(item == save_state_as_item)return NO;
 		if(item == load_state_from_item)return NO;
-		int i;
 		for(i = 0; i < MAX_SLOTS; i++)
 		{
 			if(item == saveSlot_item[i])return NO;
@@ -1307,6 +1307,13 @@ NSMenuItem *screenshot_to_file_item;
 
 		if(item == screenshot_to_file_item)return NO;
 	}
+	
+	else
+	
+	for(i = 0; i < MAX_SLOTS; i++)
+		if(item == loadSlot_item[i])
+			if([self saveStateExists:i]==NO)return NO;
+
 
 	return YES;
 }