diff options
| author | Campbell Barton <ideasman42@gmail.com> | 2017-05-20 07:01:03 +0300 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2017-05-20 07:01:03 +0300 |
| commit | 81e584ed17902878579131776b4e5a9f7b54cdab (patch) | |
| tree | b69c5e579eaa1c6b40c99a2ad36f75e385f50df3 /CMakeLists.txt | |
| parent | 6cd1d34dc1953f007ee16e9673e1d112160fb162 (diff) | |
CMake: Use GCC7's -Wimplicit-fallthrough=5
Use to avoid accidental missing break statements,
use ATTR_FALLTHROUGH to suppress.
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 1dac082459f..2284146b3ab 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1380,9 +1380,16 @@ if(CMAKE_COMPILER_IS_GNUCC) ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_MISSING_DECLARATIONS -Wmissing-declarations) endif() + # Use 'ATTR_FALLTHROUGH' macro to suppress. + if(CMAKE_COMPILER_IS_GNUCC AND (NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS "7.0")) + ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_IMPLICIT_FALLTHROUGH -Wimplicit-fallthrough=5) + ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_IMPLICIT_FALLTHROUGH -Wimplicit-fallthrough=5) + endif() + # flags to undo strict flags ADD_CHECK_C_COMPILER_FLAG(CC_REMOVE_STRICT_FLAGS C_WARN_NO_DEPRECATED_DECLARATIONS -Wno-deprecated-declarations) ADD_CHECK_C_COMPILER_FLAG(CC_REMOVE_STRICT_FLAGS C_WARN_NO_UNUSED_PARAMETER -Wno-unused-parameter) + ADD_CHECK_C_COMPILER_FLAG(CC_REMOVE_STRICT_FLAGS C_WARN_NO_IMPLICIT_FALLTHROUGH -Wno-implicit-fallthrough) if(NOT APPLE) ADD_CHECK_C_COMPILER_FLAG(CC_REMOVE_STRICT_FLAGS C_WARN_NO_ERROR_UNUSED_BUT_SET_VARIABLE -Wno-error=unused-but-set-variable) |