Set C++ standard only if it is not set at parent scope (p4lang#3541)

zzmic · Sep 29, 2022 · e31d8c6 · e31d8c6
1 parent 812722f
commit e31d8c6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -205,7 +205,7 @@ enable_testing ()
 # CMAKE_CXX_STANDARD was introduced in CMake 3.1, so for older versions of CMake, we use -std=gnu++11
 if (CMAKE_VERSION VERSION_LESS "3.1")
     set (CMAKE_CXX_FLAGS "-std=gnu++11 ${CMAKE_CXX_FLAGS}")
-else ()
+elseif(NOT DEFINED CMAKE_CXX_STANDARD OR CMAKE_CXX_STANDARD LESS 11)
     set (CMAKE_CXX_STANDARD 11)
 endif ()
 set (CMAKE_CXX_STANDARD_REQUIRED ON)