CONFIGURE: Adjustments for ATARI

- add NDEBUG for smaller file size and better performance when building
  with --enable-release

- add exe extensions for both ATARI and FreeMiNT

- use "dist-generic" instead of the clunky ./configure paths

Build as:

./configure --backend=atari --host=m68k-atari-mint --enable-release --disable-mt32emu --disable-lua --disable-nuked-opl --disable-16bit --disable-scalers --disable-translation --disable-eventrecorder --disable-tts --disable-bink --opengl-mode=none --enable-verbose-build && make -j 16 && rm -rf dist-generic; make dist-generic

.gitignore

@@ -39,6 +39,7 @@ lib*.a
 /*.bnr
 /romfs
 /dist_3ds
+/dist-generic
 /.project
 /.cproject
 /.settings
@@ -231,6 +232,8 @@ ScummVM.config
 ScummVM.creator
 ScummVM.files
 ScummVM.includes
+ScummVM.cflags
+ScummVM.cxxflags
 
 #Ignore Komodo IDE/Edit project files
 *.komodoproject
@@ -288,3 +291,7 @@ android_project
 dists/emscripten/libs/
 dists/emscripten/games/
 dists/emscripten/emsdk-*
+
+#Ignore Atari/FreeMiNT files
+scummvm.gtp
+scummvm.ttp

configure

@@ -563,6 +563,15 @@ get_system_exe_extension() {
 	mingw* | *os2-emx)
 		_exeext=".exe"
 		;;
+	mint)
+		if test "$_backend" = "atari"; then
+			# ATARI backend
+			_exeext=".ttp"
+		else
+			# SDL backend
+			_exeext=".gtp"
+		fi
+		;;
 	emscripten)
 		_exeext=".html"
 		;;
@@ -793,7 +802,7 @@ Usage: $0 [OPTIONS]...
 
 Configuration:
   -h, --help              display this help and exit
-  --backend=BACKEND       backend to build (3ds, android, dc, dingux, ds, gcw0,
+  --backend=BACKEND       backend to build (3ds, atari, android, dc, dingux, ds, gcw0,
                           gph, iphone, ios7, ios7-arm64, maemo, n64, null, opendingux,
                           openpandora, psp, psp2, samsungtv, sdl, switch, wii) [sdl]
 
@@ -3558,7 +3567,7 @@ if test -n "$_host"; then
 			_port_mk="backends/platform/sdl/kolibrios/kolibrios.mk"
 			;;
 		m68k-atari-mint)
-			# auto -> yes
+			# auto -> yes (overriden by $_release_build = yes)
 			if test "$_debug_build" = "no"; then
 				# --disable-debug 
 				append_var LDFLAGS "-s"
@@ -3569,6 +3578,13 @@ if test -n "$_host"; then
 				# --enable-release, --enable-optimizations
 				append_var CXXFLAGS "-fomit-frame-pointer"
 			fi
+
+			# auto -> no
+			if test "$_release_build" = "yes"; then
+				# --enable-release
+				append_var DEFINES "-DNDEBUG"
+			fi
+			
 			_seq_midi=no
 			_timidity=no
 			;;

ports.mk

@@ -60,6 +60,9 @@ dist-generic: $(EXECUTABLE) $(PLUGINS)
 	mkdir -p ./dist-generic/scummvm/data
 	mkdir -p ./dist-generic/scummvm/doc
 	cp $(EXECUTABLE) ./dist-generic/scummvm
+ifeq ($(BACKEND), atari)
+	m68k-atari-mint-flags -S ./dist-generic/scummvm/$(EXECUTABLE)
+endif
 	cp $(DIST_FILES_DOCS) ./dist-generic/scummvm/doc
 	cp $(DIST_FILES_THEMES) ./dist-generic/scummvm/data
 ifdef DIST_FILES_ENGINEDATA