build: fix gen-ChangeLog call.

[bison.git] / cfg.mk

diff --git a/cfg.mk b/cfg.mk
index c56e965bfe6b69ad140e429fccfbfa1feb8d5812..222d3bc306dec1da786ed294de44ae4bc6f88f1d 100644 (file)
--- a/cfg.mk
+++ b/cfg.mk
@@ -14,6 +14,14 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+# Update version, then recompile so that tests/bison --version be
+# up-to-date, then compile our parser again with our up-to-date bison.
+.PHONY: regen
+regen: _version
+       $(MAKE) $(AM_MAKEFLAGS)
+       touch $(srcdir)/src/parse-gram.y
+       $(MAKE) $(AM_MAKEFLAGS)
+
 # Used in maint.mk's web-manual rule
 manual_title = The Yacc-compatible Parser Generator
 
@@ -64,5 +72,5 @@ $(call exclude,                                                               \
   require_config_h_first=^(lib/yyerror|data/(glr|yacc))\.c$$           \
   space_tab=^tests/(input|c\+\+)\.at$$                                 \
   trailing_blank=^src/parse-gram.[ch]$$                                        \
-  unmarked_diagnostics=^djgpp/                                         \
+  unmarked_diagnostics=^(djgpp/|doc/bison.texi$$)                      \
 )