From 3551d51dd9719778444e0606dd339c4b189c5dcb Mon Sep 17 00:00:00 2001
From: Akim Demaille <akim.demaille@gmail.com>
Date: Mon, 14 Jan 2019 08:40:06 +0100
Subject: [PATCH] c++: avoid warnings about extraneous semi-colons

Reported by Derek Clegg.
http://lists.gnu.org/archive/html/bug-bison/2019-01/msg00005.html

* configure.ac (warn_cxx): Add -Wextra-semi.
* data/skeletons/c++.m4: Remove extraneous semi-colon.
---
 configure.ac          | 2 +-
 data/skeletons/c++.m4 | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 7fef652d..e60af602 100644
--- a/configure.ac
+++ b/configure.ac
@@ -98,7 +98,7 @@ if test "$enable_gcc_warnings" = yes; then
     -fparse-all-comments -Wdocumentation
     -Wformat -Wnull-dereference -Wpointer-arith -Wshadow -Wwrite-strings'
   warn_c='-Wbad-function-cast -Wstrict-prototypes'
-  warn_cxx='-Wnoexcept'
+  warn_cxx='-Wextra-semi -Wnoexcept'
   # Warnings for the test suite only.
   #
   # -fno-color-diagnostics: Clang's use of colors in the error
diff --git a/data/skeletons/c++.m4 b/data/skeletons/c++.m4
index 137d941b..c985cb98 100644
--- a/data/skeletons/c++.m4
+++ b/data/skeletons/c++.m4
@@ -352,7 +352,7 @@ m4_define([b4_symbol_type_define],
       typedef basic_symbol<by_type> super_type;
 
       /// Empty symbol.
-      symbol_type () {};
+      symbol_type () {}
 
       /// Constructor for valueless symbols, and symbols from each type.
 ]b4_type_foreach([_b4_token_constructor_define])dnl