1 # Distributed under the OSI-approved BSD 3-Clause License. See accompanying
2 # file Copyright.txt or https://cmake.org/licensing for details.
4 #[=======================================================================[.rst:
8 Test for std:: namespace support
10 check if the compiler supports std:: on stl classes
14 CMAKE_NO_STD_NAMESPACE - defined by the results
15 #]=======================================================================]
17 if(NOT DEFINED CMAKE_STD_NAMESPACE)
18 message(CHECK_START "Check for STD namespace")
19 try_compile(CMAKE_STD_NAMESPACE
20 SOURCES ${CMAKE_ROOT}/Modules/TestForSTDNamespace.cxx
21 OUTPUT_VARIABLE OUTPUT)
22 if (CMAKE_STD_NAMESPACE)
23 message(CHECK_PASS "found")
24 set (CMAKE_NO_STD_NAMESPACE 0 CACHE INTERNAL
25 "Does the compiler support std::.")
26 file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
27 "Determining if the CXX compiler has std namespace passed with "
28 "the following output:\n${OUTPUT}\n\n")
30 message(CHECK_FAIL "not found")
31 set (CMAKE_NO_STD_NAMESPACE 1 CACHE INTERNAL
32 "Does the compiler support std::.")
33 file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
34 "Determining if the CXX compiler has std namespace failed with "
35 "the following output:\n${OUTPUT}\n\n")