Fixed a few warnings

git-svn-id: svn://svn.cc65.org/cc65/trunk@938 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/od65/main.c

@@ -265,7 +265,7 @@ int main (int argc, char* argv [])
 	{ "--version",	       	0,	OptVersion		},
     };
 
-    int I;
+    unsigned I;
 
     /* Initialize the cmdline module */
     InitCmdLine (&argc, &argv, "od65");

src/od65/make/gcc.mak

@@ -6,7 +6,7 @@
 # Library dir
 COMMON	= ../common
 
-CFLAGS = -O2 -g -Wall -I$(COMMON)
+CFLAGS = -O2 -g -Wall -W -Wno-unused-parameter -I$(COMMON)
 CC=gcc
 EBIND=emxbind
 LDFLAGS=