Проверка доступности стандарта C++17

CMLibBuildTypes.cmake

@@ -35,7 +35,7 @@ if(CMAKE_BUILD_TYPE STREQUAL Profile)
         CACHE STRING "" FORCE)
     set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} ${_gcc_profile_flags}"
         CACHE STRING "" FORCE)
-    set(CMAKE_STATIC_LINKER_FLAGS_PROFILE "${CMAKE_STATIC_LINKER_FLAGS_RELEASE} ${_gcc_profile_flags}"
+    set(CMAKE_STATIC_LINKER_FLAGS_PROFILE "${CMAKE_STATIC_LINKER_FLAGS_RELEASE}"
         CACHE STRING "" FORCE)
     set(CMAKE_MODULE_LINKER_FLAGS_PROFILE "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} ${_gcc_profile_flags}"
         CACHE STRING "" FORCE)

CMLibCompilerFlags.cmake

@@ -34,6 +34,14 @@ endif()
 # Выбор стандарта по умолчанию (можно переопределить в проекте)
 set(CMAKE_CXX_STANDARD_REQUIRED YES)
 
+check_cxx_compiler_flag(-std=c++17 HAVE_FLAG_STD_CXX17)
+if(HAVE_FLAG_STD_CXX17)
+  set(CMAKE_CXX_STANDARD 17)
+  check_cxx_compiler_flag(-std=gnu++17 HAVE_FLAG_STD_GNUXX17)
+  if(HAVE_FLAG_STD_GNUXX17)
+    set(CMAKE_CXX_EXTENSIONS YES)
+  endif()
+else()
   check_cxx_compiler_flag(-std=c++14 HAVE_FLAG_STD_CXX14)
   if(HAVE_FLAG_STD_CXX14)
     set(CMAKE_CXX_STANDARD 14)
@@ -45,6 +53,7 @@ else()
     set(CMAKE_CXX_STANDARD 11)
     set(CMAKE_CXX_EXTENSIONS YES)
   endif()
+endif()
 
 # Common configuration for GCC, clang and Intel.
 if(CMAKE_CXX_COMPILER_IS_CLANG OR CMAKE_CXX_COMPILER_IS_INTEL OR CMAKE_CXX_COMPILER_IS_GCC)