Override MAKE in CONFIGURE_ENV when USE_GMAKE is set to Yes. Some ports

seem to need this more and more and it makes sense anyway.

tested in a bulk by jasper@, ok espie@

infrastructure/mk/bsd.port.mk

@@ -1,6 +1,6 @@
 #-*- mode: Makefile; tab-width: 4; -*-
 # ex:ts=4 sw=4 filetype=make:
-#	$OpenBSD: bsd.port.mk,v 1.994 2010/04/20 21:00:35 espie Exp $
+#	$OpenBSD: bsd.port.mk,v 1.995 2010/04/24 09:54:42 ajacoutot Exp $
 #	$FreeBSD: bsd.port.mk,v 1.264 1996/12/25 02:27:44 imp Exp $
 #	$NetBSD: bsd.port.mk,v 1.62 1998/04/09 12:47:02 hubertf Exp $
 #
@@ -336,6 +336,7 @@ USE_GMAKE ?= No
 .if ${USE_GMAKE:L} == "yes"
 BUILD_DEPENDS += ::devel/gmake
 MAKE_PROGRAM = ${GMAKE}
+CONFIGURE_ENV += MAKE=${MAKE_PROGRAM}
 .else
 MAKE_PROGRAM = ${MAKE}
 .endif