set MAX_INC_NESTING to 20

git-svn-id: svn://svn.cc65.org/cc65/trunk@90 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/cc65/input.c

@@ -60,7 +60,7 @@ char* line = LineBuf;
 char* lptr = LineBuf;
 
 /* Maximum count of nested includes */
-#define MAX_INC_NESTING 	16
+#define MAX_INC_NESTING 	20
 
 /* Struct that describes an input file */
 typedef struct IFile IFile;