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author | Brad King <brad.king@kitware.com> | 2020-08-19 14:48:35 -0400 |
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committer | Brad King <brad.king@kitware.com> | 2020-08-19 14:52:52 -0400 |
commit | f4373feda85fd63b80dd357d896e23bd001578df (patch) | |
tree | 7872a3757ced2279b97d7d63c70a354c8b0bb069 | |
parent | 09e8de75d5997ad2a57049426c5dc3b9238e2d34 (diff) | |
download | cmake-f4373feda85fd63b80dd357d896e23bd001578df.tar.gz |
Tests: Fix RunCMake.try_compile test for C standards with MSVC 19.27
Since commit f7347f28c7 (MSVC: Record support for C11 and c_restrict,
2020-08-09) we know about MSVC C language standards. Update the
`RunCMake.try_compile` test to be aware of this even when CMake is
itself configured by an older CMake that does not know this.
-rw-r--r-- | Tests/RunCMake/CMakeLists.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Tests/RunCMake/CMakeLists.txt b/Tests/RunCMake/CMakeLists.txt index 5d005540d8..470f30291d 100644 --- a/Tests/RunCMake/CMakeLists.txt +++ b/Tests/RunCMake/CMakeLists.txt @@ -363,6 +363,15 @@ function(add_RunCMake_test_try_compile) unset(CMAKE_CXX_STANDARD_DEFAULT) endif() endif() + if(CMAKE_VERSION VERSION_LESS 3.18.20200813 AND "x${CMAKE_C_COMPILER_ID}" STREQUAL "xMSVC") + # Older CMake versions do not know about MSVC language standards. + # Approximate our logic from MSVC-C.cmake. + if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 19.27) + set(CMAKE_C_STANDARD_DEFAULT 99) + else() + set(CMAKE_C_STANDARD_DEFAULT "") + endif() + endif() foreach(var CMAKE_SYSTEM_NAME CMAKE_C_COMPILER_ID |