shithub: rgbds

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error out if both -o and -c are specified

--- a/src/fix/main.c

+++ b/src/fix/main.c

@@ -294,10 +294,16 @@

 				ulOptions |= OPTF_QUIET;

 				break;

 			case 'o':

+				if (ulOptions & OPTF_GBCMODE) {

+					FatalError("-c and -o can't be used together");

+				}

 				ulOptions |= OPTF_GBCMODE;

 				gbc_mode = 0xC0;

 				break;

 			case 'c':

+				if (ulOptions & OPTF_GBCMODE) {

+					FatalError("-c and -o can't be used together");

+				}

 				ulOptions |= OPTF_GBCMODE;

 				gbc_mode = 0x80;

 				break;