shithub: rgbds

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Allow outputting dep files to stdout using `-`

--- a/src/asm/main.c

+++ b/src/asm/main.c

@@ -393,7 +393,10 @@

 		case 'M':

 			ep = strchr("GPQT", optarg[0]);

 			if (!ep || !*ep || optarg[1]) {

-				dependfile = fopen(optarg, "w");

+				if (!strcmp("-", optarg))

+					dependfile = stdout;

+				else

+					dependfile = fopen(optarg, "w");

 				if (dependfile == NULL)

 					err(1, "Could not open dependfile %s",

 					    optarg);