+ifeq ($(PLATFORM),macosx) # native compiling to Mac OS X
+EXTRA_LDFLAGS = -lstdc++
+PLATFORM = unix
+TARGET = sdl
+endif
+
+ifeq ($(PLATFORM),os2) # native compiling to OS/2
+RANLIB = echo
+PROGNAME = ../$(PROGBASE).exe
+EXTRA_CFLAGS = -Zbin-files -D__ST_MT_ERRNO__ -Zmtd -fomit-frame-pointer
+EXTRA_LDFLAGS = -lsocket