Detect MINGW, as well as CYGWIN, for Windows build environment. #76

Author: wb2osz

Makefile

@@ -5,6 +5,10 @@
 # equal to some value.   Your mileage my vary.
 
 win := $(shell uname | grep CYGWIN)
+ifeq ($(win),)
+   win := $(shell uname | grep MINGW)
+endif
+
 dar := $(shell uname | grep Darwin)
 
 ifneq ($(win),)