[pkgsrc/trunk]: pkgsrc/mk jbuilder not always uses opam, it's just the default

[jaapb <jaapb%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/0b94d3b62419
branches:  trunk
changeset: 367945:0b94d3b62419
user:      jaapb <jaapb%pkgsrc.org@localhost>
date:      Fri Sep 08 19:09:26 2017 +0000

description:
jbuilder not always uses opam, it's just the default

diffstat:

 mk/ocaml.mk |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (18 lines):

diff -r 3432ce2486c2 -r 0b94d3b62419 mk/ocaml.mk
--- a/mk/ocaml.mk       Fri Sep 08 17:19:45 2017 +0000
+++ b/mk/ocaml.mk       Fri Sep 08 19:09:26 2017 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: ocaml.mk,v 1.15 2017/09/08 08:39:06 jaapb Exp $
+# $NetBSD: ocaml.mk,v 1.16 2017/09/08 19:09:26 jaapb Exp $
 #
 # This Makefile fragment handles the common variables used by OCaml packages.
 #
@@ -150,7 +150,7 @@
 # Configure stuff for JBUILDER
 .if ${OCAML_USE_JBUILDER} == "yes"
 .include "../../devel/ocaml-jbuilder/buildlink3.mk"
-OCAML_USE_OPAM=        yes
+OCAML_USE_OPAM?=       yes
 .endif
 
 # Value for OCAML_SITELIBDIR