updated CFLAGS (Anich Gregor)

Makefile.mgw

@@ -61,7 +61,7 @@ CPU ?= pentium
 
 ifeq ($(ICD),1)
   # when -std=c99 mingw will not define WIN32
-  CFLAGS = -Wall -W -Werror -pedantic -std=c99 -DWIN32
+  CFLAGS = -Wall -W -Werror
 else
   # I love c89
   CFLAGS = -Wall -W -pedantic