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| author | Brad King <brad.king@kitware.com> | 2015-05-08 11:04:21 -0400 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2015-05-08 11:04:21 -0400 |
| commit | 3307e10fc4ef5ffb551df35bc0978a2543305e9d (patch) | |
| tree | aa50d969e63c5f6bc06b3481a79538ab3064dfed /CMakeLists.txt | |
| parent | 6831f91a6c6d4f5d194c7a035c8de45f203f9cf8 (diff) | |
| download | cmake-3307e10fc4ef5ffb551df35bc0978a2543305e9d.tar.gz | |
Avoid using C++14 to build CMake if cstdio breaks
The GNU 4.8 standard library's cstdio header is not aware that C++14
honors C11's removal of "gets" from stdio.h and results in an error:
/.../include/c++/4.8/cstdio:120:11: error: no member named 'gets' in the global namespace
Detect this problematic case and default to using C++11 instead of
C++14 for building CMake itself.
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index e979d4f38e..19d83f17e7 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -41,7 +41,12 @@ if(NOT DEFINED CMAKE_C_STANDARD AND NOT CMake_NO_C_STANDARD) set(CMAKE_C_STANDARD 11) endif() if(NOT DEFINED CMAKE_CXX_STANDARD AND NOT CMake_NO_CXX_STANDARD) - set(CMAKE_CXX_STANDARD 14) + include(${CMake_SOURCE_DIR}/Source/Checks/cm_cxx14_cstdio.cmake) + if(NOT CMake_CXX14_CSTDIO_BROKEN) + set(CMAKE_CXX_STANDARD 14) + else() + set(CMAKE_CXX_STANDARD 11) + endif() endif() # option to set the internal encoding of CMake to UTF-8 |