diff options
| -rw-r--r-- | CMakeLists.txt | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 20d653a082..e1cf1459e1 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -74,6 +74,17 @@ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wconversion") # does not work with Neovim due to some uses of dynamically-sized structures. # See https://github.com/neovim/neovim/issues/223 for details. include(CheckCSourceCompiles) + +# Include the build type's default flags in the check for _FORTIFY_SOURCE, +# otherwise we may incorrectly identify the level as acceptable and find out +# later that it was not when optimizations were enabled. CFLAGS is applied +# even though you don't see it in CMAKE_REQUIRED_FLAGS. +set(INIT_FLAGS_NAME CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE}) +string(TOUPPER ${INIT_FLAGS_NAME} INIT_FLAGS_NAME) +if(${INIT_FLAGS_NAME}) + set(CMAKE_REQUIRED_FLAGS "${${INIT_FLAGS_NAME}}") +endif() + check_c_source_compiles(" #if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 1 #error \"_FORTIFY_SOURCE > 1\" |