From 4c9a28a28e078ef7e1eb7e98cdb2dfabd4b378ca Mon Sep 17 00:00:00 2001 From: Rolf Eike Beer Date: Fri, 24 Nov 2017 15:48:43 +0100 Subject: [PATCH] CMake: do not pass -march=native or -mcpu=native when crosscompiling --- CMakeLists.txt | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -50,12 +50,14 @@ endif(CCACHE_FOUND) if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU") + if(NOT CMAKE_CROSSCOMPILING) if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "powerpc" OR ${CMAKE_SYSTEM_PROCESSOR} STREQUAL "ppc64" OR ${CMAKE_SYSTEM_PROCESSOR} STREQUAL "ppc64le") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=native") else() #FIXME: x86 is -march=native, but doesn't mean every arch is this option. To keep original project's compatibility, I leave this except POWER. set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native") endif() + endif() set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Werror") if (RAPIDJSON_BUILD_CXX11) if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.7.0") @@ -79,12 +81,14 @@ endif() endif() elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang") + if(NOT CMAKE_CROSSCOMPILING) if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "powerpc" OR ${CMAKE_SYSTEM_PROCESSOR} STREQUAL "ppc64" OR ${CMAKE_SYSTEM_PROCESSOR} STREQUAL "ppc64le") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=native") else() #FIXME: x86 is -march=native, but doesn't mean every arch is this option. To keep original project's compatibility, I leave this except POWER. set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native") endif() + endif() set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Werror -Wno-missing-field-initializers") if (RAPIDJSON_BUILD_CXX11) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")