tests: fix regressions.

Exit status 63 is documented for version-mismatch.
	* bootstrap.conf (gnulib_modules): Remove sysexits.
	* src/system.h (EX_MISMATCH): Define.
	* src/parse-gram.y (version_check): Use it instead of EX_CONFIG.

Missing includes.
	* tests/calc.at, tests/named-refs.at: Include assert.h.

1 files changed, 1 insertions, 1 deletions

diff --git a/etc/bench.pl.in b/etc/bench.pl.in
index 0bee4df1..5d83fc7b 100755
--- a/etc/bench.pl.in
+++ b/etc/bench.pl.in
@@ -371,8 +371,8 @@ sub generate_grammar_calc ($$@)
     or die;
   print $out <<EOF;
 %{
+#include <assert.h>
 #include <stdio.h>
-
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>