File fix-stringcompare.patch of Package hp2xx

--- a/sources/std_main.c	2018-02-18 16:15:23.343772104 -0500
+++ b/sources/std_main.c	2018-02-18 16:16:00.502843082 -0500
@@ -133,7 +133,7 @@
 		}
 		if (strcmp(pg->mode, "pre")) {
 			po->pagecount++;
-			if (po->outfile != "-" && po->pagecount > 0) {
+			if (strcmp(po->outfile, "-") != 0 && po->pagecount > 0) {
 				sprintf(thepage, "%d", po->pagecount);
 				strcpy(po->outfile, savedname);
 				if (strstr(po->outfile, pg->mode))