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| author |  Evan Cox <evanacox00@gmail.com> | 2022-08-11 14:55:04 -0400 |
|---|---|---|
| committer | Evan Cox <evanacox00@gmail.com> | 2022-08-11 14:55:04 -0400 |
| commit | 6f6886156d986d83e33f97578bd3eb66b36fb40a (patch) | |
| tree | 18777e01039125298439ee7634e059fac04c9288 /CMakeLists.txt | |
| parent | 697acabc5b7e28c51f7ab8d2f43d4ef4fed77f8d (diff) | |
add new CMake option `ABSL_USE_SYSTEM_INCLUDES`
When using Abseil as a dependency with CMake, files that include Abseil headers and have incompatible warning settings can emit compiler warnings. CMake allows you to mark include directories as `SYSTEM` includes, which causes compilers to ignore warnings from those headers.
This adds the new option `ABSL_USE_SYSTEM_INCLUDES`, which makes Abseil's include directories be marked with `SYSTEM`.
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 10acf3b7..6f96c28e 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -70,6 +70,10 @@ if((${CMAKE_VERSION} VERSION_GREATER_EQUAL 3.8) AND (NOT ABSL_PROPAGATE_CXX_STD) message(WARNING "A future Abseil release will default ABSL_PROPAGATE_CXX_STD to ON for CMake 3.8 and up. We recommend enabling this option to ensure your project still builds correctly.") endif() +option(ABSL_USE_SYSTEM_INCLUDES + "Mark C++ include directories with `SYSTEM` to prevent warnings from headers when using Abseil with incompatible warning flags" + OFF) + list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR}/CMake ${CMAKE_CURRENT_LIST_DIR}/absl/copts |