From 44bbd0b0ef8450f4d88dfb8c3345118f2fd14dfc Mon Sep 17 00:00:00 2001
From: Jean-Marc Lasgouttes <lasgouttes@lyx.org>
Date: Wed, 12 Jun 2019 20:17:55 +0200
Subject: [PATCH] Get full version of gcc

Recent gcc versions return a short version with -dumpversion, e.g. 9.

In this case, use -dumpfullversion, which gives something like 9.1.0.

This makes the gcc 9 detection work properly.
---
 config/lyxinclude.m4 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/config/lyxinclude.m4 b/config/lyxinclude.m4
index f77e3480f6..9fe42e8847 100644
--- a/config/lyxinclude.m4
+++ b/config/lyxinclude.m4
@@ -381,6 +381,10 @@ if test x$GXX = xyes; then
   if test x$CLANG = xno; then
     dnl Useful for global version info
     gxx_version=`${CXX} -dumpversion`
+    case $gxx_version in
+	*.*) ;;
+	*) gxx_version=`${CXX} -dumpfullversion` ;;
+    esac
     CXX_VERSION="($gxx_version)"
   else
     gxx_version=clang-$clang_version