MORPHOS: simplify VERSION

- Same as AmigaOS4, add AMIGA format DATE
- Configure : force optimization level on release build

Makefile.common

@@ -201,6 +201,11 @@ ifdef AMIGAOS
 AMIGA_DATE = $(shell gdate '+%d.%m.%Y')
 VERFLAGS += -DAMIGA_DATE=\"$(AMIGA_DATE)\"
 endif
+ifdef MORPHOS
+# MorphOS needs date in specific format for the version cookie
+AMIGA_DATE = $(shell date +"%-d.%-m.%Y")
+VERFLAGS += -DAMIGA_DATE=\"$(AMIGA_DATE)\"
+endif
 
 ######################################################################
 # Get git's working copy information

base/version.cpp

@@ -56,12 +56,9 @@
  * to properly work in exports (i.e. release tar balls etc.).
  */
 const char *gScummVMVersion = SCUMMVM_VERSION SCUMMVM_REVISION;
-#ifdef __amigaos4__
+#if defined(__amigaos4__) || defined(__MORPHOS__)
 static const char *version_cookie __attribute__((used)) = "$VER: ScummVM " SCUMMVM_VERSION SCUMMVM_REVISION " (" AMIGA_DATE ")";
 #endif
-#ifdef __MORPHOS__
-static const char *version_cookie __attribute__((used)) = "$VER: ScummVM " SCUMMVM_VERSION SCUMMVM_REVISION " (" __DATE__ ")";
-#endif
 const char *gScummVMBuildDate = __DATE__ " " __TIME__;
 const char *gScummVMVersionDate = SCUMMVM_VERSION SCUMMVM_REVISION " (" __DATE__ " " __TIME__ ")";
 const char *gScummVMFullVersion = "ScummVM " SCUMMVM_VERSION SCUMMVM_REVISION " (" __DATE__ " " __TIME__ ")";

configure

@@ -2630,6 +2630,9 @@ case $_host_os in
 		_nuked_opl=no
 		;;
 	morphos*)
+		if test "$_debug_build" = no; then
+			_optimization_level=-O2
+		fi
 		append_var LDFLAGS "-Wl,--export-dynamic"
 		append_var LDFLAGS "-L/usr/local/lib"
 		append_var CXXFLAGS "-D__MORPHOS_SHAREDLIBS"
@@ -2640,6 +2643,7 @@ case $_host_os in
 		append_var CXXFLAGS "-Wno-format"
 		add_line_to_config_mk 'MORPHOS = 1'
 		_port_mk="backends/platform/sdl/morphos/morphos.mk"
+		# for use SDL2
 		_sdlconfig=sdl2-config
 		_nuked_opl=no
 		;;