From 2b9645cd7e8e3ad270b23edda9efa095e054e976 Mon Sep 17 00:00:00 2001
From: Andrey Semashev <Lastique@users.noreply.github.com>
Date: Thu, 11 Jul 2019 14:34:28 +0300
Subject: [PATCH] Fix compiler warnings about -std=gnu11 on Cygwin. (#458)

-std=gnu11 is a flag for C source files, for C++ -std=gnu++11 should be used.
---
 src/engine/build.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/engine/build.sh b/src/engine/build.sh
index a1e4cd335..5b70c7066 100755
--- a/src/engine/build.sh
+++ b/src/engine/build.sh
@@ -177,7 +177,7 @@ case $B2_TOOLSET in
         ;;
 
         *cygwin*)
-        B2_CXX="${CXX} -x c++ -std=gnu11"
+        B2_CXX="${CXX} -x c++ -std=gnu++11"
         B2_CXXFLAGS_RELEASE="-O2 -s"
         B2_CXXFLAGS_DEBUG="-O0 -g"
         ;;