Introduce new "meson" USES.

This uses will handling building software that uses the meson
build system. Expand the option framework to handle MESON options.

Approved by:	portmgr (swills@)

Differential Revision:	https://reviews.freebsd.org/D104091

1 files changed, 5 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
index 9dd78710c67e..e6c076bc4a2f 100644
--- a/CHANGES
+++ b/CHANGES
@@ -10,6 +10,11 @@ in the release notes and/or placed into UPDATING.
 
 All ports committers are allowed to commit to this file.
 
+20170417:
+AUTHOR:	kwm@FreeBSD.org
+
+  New USES: meson, to handle properly the meson building system.
+  
 20170313:
 AUTHOR: tijl@FreeBSD.org