Subject: Only use -fstack-protector-all if it is supported This flag isn't available on all Debian ports. Origin: vendor From: Colin Watson Reviewed-by: nicoo Forwarded: https://github.com/Yubico/libfido2/pull/130 Applied-Upstream: not-yet Last-Update: 2020-02-23 --- CMakeLists.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index c7c5991..07ca5e1 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -114,7 +114,10 @@ else() set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wbad-function-cast") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pedantic") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pedantic-errors") - set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector-all") + check_c_compiler_flag("-fstack-protector-all" HAVE_STACK_PROTECTOR_ALL) + if(HAVE_STACK_PROTECTOR_ALL) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector-all") + endif() set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99") set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g2")