Cygwin build failed

f80a886b · Ivan Shynkarenka · 05c2d01b · f80a886b
Commit f80a886b authored May 01, 2018 by Ivan Shynkarenka
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CMakeLists.txt cmake/CMakeLists.txt +7 -3

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--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -16,9 +16,13 @@ endif()
 project(protobuf C CXX)

 # Add c++11 flags
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_CXX_EXTENSIONS OFF)
+if (CYGWIN)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")
+else()
+  set(CMAKE_CXX_STANDARD 11)
+  set(CMAKE_CXX_STANDARD_REQUIRED ON)
+  set(CMAKE_CXX_EXTENSIONS OFF)
+endif()

 # Options
 option(protobuf_BUILD_TESTS "Build tests" ON)