--- a/mingw.mk	Sun Jan 31 16:47:18 2016 +0100
+++ b/mingw.mk	Sun Jan 31 20:39:29 2016 +0100
@@ -31,7 +31,7 @@
 AR = ar
 RM = rm
 
-CFLAGS  = -std=gnu99 -c -O2
+CFLAGS  = -std=gnu99 -g -DDEBUG -c -O2
 COFLAGS = -o
 LDFLAGS = 
 LOFLAGS = -o