portability: use va_start and va_end in the same function.

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 868259d1971dbd56076fdb3af5c9a9ac2524dfa5..4f1b20f94b62c9532b99d395bd3cada897fbec53 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -94,6 +94,8 @@ AC_PROG_YACC
 AC_PROG_RANLIB
 AC_PROG_GNU_M4
 AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
+AC_DEFINE_UNQUOTED([M4_GNU_OPTION], ["$M4_GNU"], [Define to "-g" if GNU M4
+supports -g, otherwise to "".])
 AM_MISSING_PROG([HELP2MAN], [help2man])
 AC_PATH_PROG([XSLTPROC], [xsltproc])
 AC_SUBST([XSLTPROC])
@@ -115,9 +117,10 @@ BISON_PREREQ_SUBPIPE
 BISON_PREREQ_TIMEVAR
 
 # Gettext.
-# We've never tested with gettext versions before 0.15, so play it safe.
+# We use gnulib, which is only guaranteed to work properly with the
+# latest Gettext.
 AM_GNU_GETTEXT([external], [need-ngettext])
-AM_GNU_GETTEXT_VERSION([0.15])
+AM_GNU_GETTEXT_VERSION([0.17])
 BISON_I18N
 
 # Internationalized parsers.