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path: root/nixpkgs/pkgs/development/libraries/libtins/0001-force-cpp-14.patch
blob: 3426713a07e3acf96d2be046e74952c8aa8af51d (plain) (blame)
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This change bypasses all the code that attempts to see which C++11 features are enabled in your specific C++11 compiler.  C++14 is required for gtest 1.13+.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 902233e676ee..49ac8a1010a4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -103,17 +103,9 @@ ENDIF()
 # C++11 support
 OPTION(LIBTINS_ENABLE_CXX11 "Compile libtins with c++11 features" ON)
 IF(LIBTINS_ENABLE_CXX11)
-    # We only use declval and decltype on gcc/clang as VC fails to build that code,
-    # at least on VC2013
-    IF(HAS_CXX11_RVALUE_REFERENCES AND HAS_CXX11_FUNCTIONAL AND HAS_CXX11_CHRONO AND
-       HAS_CXX11_NOEXCEPT AND ((HAS_CXX11_DECLVAL AND HAS_CXX11_DECLTYPE) OR MSVC))
-        SET(TINS_HAVE_CXX11 ON)
-        MESSAGE(STATUS "Enabling C++11 features")
-        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX11_COMPILER_FLAGS}")
-    ELSE()
-        MESSAGE(WARNING "The compiler doesn't support the necessary C++11 features. "
-                        "Disabling C++11 on this build")
-    ENDIF()
+    SET(TINS_HAVE_CXX11 ON)
+    MESSAGE(STATUS "Using C++11 features")
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
 ELSE(LIBTINS_ENABLE_CXX11)
     MESSAGE(
         WARNING