code which expansion is under static control.
+2003-04-21 Paul Eggert <eggert@twinsun.com>
+
+ * error.m4 (gl_ERROR): Do not put under dynamic conditions some
+ code which expansion is under static control. Patch imported from
+ Akim Demaille's patch to Bison; see
+ <http://mail.gnu.org/archive/html/bison-patches/2003-03/msg00057.html>.
+
2003-04-14 Bruno Haible <bruno@clisp.org>
* error.m4 (jm_PREREQ_ERROR): Use AC_FUNC_VPRINTF.