doc: Fix statement about required Bison version.

Reported by Amit Chaudhuri <amit.k.chaudhuri@gmail.com>.

* HACKING: Required minimum Bison version is now 3.0, for cldr-plural.y.

diff --git a/HACKING b/HACKING
index 04b9e7e0d772fa5a8567f1ba95ebf3de164478e6..0244c3de58ae28e107236ace66f1d470beadea9d 100644 (file)
--- a/HACKING
+++ b/HACKING
@@ -23,7 +23,7 @@ You will need reasonably recent versions of the build tools:
     + Homepage:
       http://www.gnu.org/software/m4/
 
-  * GNU bison 2.7 or newer
+  * GNU bison 3.0 or newer
     + Homepage:
       http://www.gnu.org/software/bison/