Fix linking failures when compiled with Clang 9

This commit is contained in:
sfan5 2020-03-05 20:33:47 +01:00
parent e774d8ca2f
commit db95ff2286

@ -696,7 +696,7 @@ else()
set(RELEASE_WARNING_FLAGS "")
endif()
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
set(WARNING_FLAGS "${WARNING_FLAGS} -Wsign-compare")
endif()
if(APPLE AND USE_LUAJIT)
@ -713,7 +713,14 @@ else()
if(CMAKE_SYSTEM_NAME MATCHES "(Darwin|BSD|DragonFly)")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -Os")
else()
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -ffast-math -fomit-frame-pointer")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -fomit-frame-pointer")
if(CMAKE_SYSTEM_NAME STREQUAL "Linux"
AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang"
AND CMAKE_CXX_COMPILER_VERSION MATCHES "^9\\.")
# Clang 9 has broken -ffast-math on glibc
else()
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -ffast-math")
endif()
endif(CMAKE_SYSTEM_NAME MATCHES "(Darwin|BSD|DragonFly)")
set(CMAKE_CXX_FLAGS_SEMIDEBUG "-g -O1 -Wall -Wabi ${WARNING_FLAGS} ${OTHER_FLAGS}")
set(CMAKE_CXX_FLAGS_DEBUG "-g -O0 -Wall -Wabi ${WARNING_FLAGS} ${OTHER_FLAGS}")