Change the makefiles so that CFLAGS that are special for the application are

appended after assigning the base value to CFLAGS. This allows to change
CFLAGS on the command line without too much hassle.


git-svn-id: svn://svn.cc65.org/cc65/trunk@4219 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/sim65/make/gcc.mak

@@ -10,11 +10,17 @@ EXE  	= sim65
 # Library dir
 COMMON	= ../common
 
-CFLAGS 	= -g -O2 -Wall -W -std=c89 -I$(COMMON)
+#
 CC	= gcc
+CFLAGS 	= -g -O2 -Wall -W -std=c89 
+CFLAGS += -I$(COMMON)
 EBIND	= emxbind
 LDFLAGS	=
 
+
+# -----------------------------------------------------------------------------
+# List of all object files
+
 OBJS = 	addrspace.o     \
         callback.o      \
         cfgdata.o       \