GNU sed does not understand -E' and NetBSD sed does not understand -r'.

Also the POSIX specification does not mention EREs, so not using them is
probably the most portable thing to do.

Reported by Aleksey Cheusov on pkgsrc-wip-discuss.

dcc/Makefile

@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.7 2009/02/26 10:14:42 pebog Exp $
+# $NetBSD: Makefile,v 1.8 2009/03/06 20:06:44 pebog Exp $
 #
 #
 #	Request by the author:
@@ -43,7 +43,9 @@ FILES_SUBST+=		DCC_RUN=${DCC_RUN}
 SUBST_CLASSES+=		dae
 SUBST_STAGE.dae=	post-patch
 SUBST_FILES.dae=	homedir/dcc_conf.in
-SUBST_SED.dae=		-Ee 's!^(DCC(D|IFD|M)_ENABLE=)off$$!\1on!'
+SUBST_SED.dae=		-e 's/^\(DCCD_ENABLE=\)off$$/\1on/' \
+			-e 's/^\(DCCM_ENABLE=\)off$$/\1on/' \
+			-e 's/^\(DCCIFD_ENABLE=\)off$$/\1on/'
 SUBST_MESSAGE.dae=	Enabling all daemons in dcc_conf
 
 HAS_CONFIGURE=		yes