Files
CMake/Modules/TestForSTDNamespace.cmake
Matthew Woehlke 2edf0fc6d7 Modules: Use new keyword-dispatched try_compile signature
Modify most of the modules that ship with CMake to use the new
try_compile / try_run signatures added by commit aa9220d3a0
(try_compile: Add keyword-dispatched signature, 2022-09-02). This
improves debugging by each invocation using its own directory so that
the results of multiple invocations can be retained.

This does not cover any invocations which provide an entire project, as
that flavor of try_compile has not yet been updated.
2022-09-14 07:52:16 -04:00

42 lines
1.4 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
TestForSTDNamespace
-------------------
Test for std:: namespace support
check if the compiler supports std:: on stl classes
::
CMAKE_NO_STD_NAMESPACE - defined by the results
#]=======================================================================]
if(NOT DEFINED CMAKE_STD_NAMESPACE)
message(CHECK_START "Check for STD namespace")
try_compile(CMAKE_STD_NAMESPACE
SOURCES ${CMAKE_ROOT}/Modules/TestForSTDNamespace.cxx
OUTPUT_VARIABLE OUTPUT)
if (CMAKE_STD_NAMESPACE)
message(CHECK_PASS "found")
set (CMAKE_NO_STD_NAMESPACE 0 CACHE INTERNAL
"Does the compiler support std::.")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Determining if the CXX compiler has std namespace passed with "
"the following output:\n${OUTPUT}\n\n")
else ()
message(CHECK_FAIL "not found")
set (CMAKE_NO_STD_NAMESPACE 1 CACHE INTERNAL
"Does the compiler support std::.")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if the CXX compiler has std namespace failed with "
"the following output:\n${OUTPUT}\n\n")
endif ()
endif()