D10541.diff
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	Index: head/lib/libc/regex/regcomp.c
	===================================================================
	--- head/lib/libc/regex/regcomp.c
	+++ head/lib/libc/regex/regcomp.c
	@@ -444,6 +444,8 @@
	(void)REQUIRE(!MORE() \|\| !isdigit((uch)PEEK()), REG_BADRPT);
	/* FALLTHROUGH */
	default:
	+ if (p->error != 0)
	+ return;
	p->next--;
	wc = WGETNEXT();
	ordinary(p, wc);
	@@ -651,6 +653,8 @@
	(void)REQUIRE(starordinary, REG_BADRPT);
	/* FALLTHROUGH */
	default:
	+ if (p->error != 0)
	+ return(0); /* Definitely not $... */
	p->next--;
	wc = WGETNEXT();
	ordinary(p, wc);