D10420.id27946.diff
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	Index: head/usr.bin/grep/grep.c
	===================================================================
	--- head/usr.bin/grep/grep.c
	+++ head/usr.bin/grep/grep.c
	@@ -716,8 +716,13 @@
	case GREP_BASIC:
	break;
	case GREP_FIXED:
	- /* XXX: header mess, REG_LITERAL not defined in gnu/regex.h */
	- cflags \|= 0020;
	+#if defined(REG_NOSPEC)
	+ cflags \|= REG_NOSPEC;
	+#elif defined(REG_LITERAL)
	+ cflags \|= REG_LITERAL;
	+#else
	+ errx(2, "literal expressions not supported at compile time");
	+#endif
	break;
	case GREP_EXTENDED:
	cflags \|= REG_EXTENDED;