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visualboyadvance-m
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pass all compile flags to link step 

This makes -static-libgcc -static-libstdc++ actually work, and is
probably better for LTO as well.
This commit is contained in:
Rafael Kitover 2016-11-21 13:53:16 -08:00
parent 349bbd13bc
commit cdae078e42
1 changed files with 20 additions and 17 deletions
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31
CMakeLists.txt
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@ -293,15 +293,12 @@ ENDIF()
IF(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
# common optimization flags
SET(MY_C_AND_CXX_OPT_FLAGS -O2 -mtune=generic -fomit-frame-pointer -flto=10)
SET(MY_C_AND_CXX_OPT_FLAGS_STR "-O2 -mtune=generic -fomit-frame-pointer -flto=10")
# common debug flags
IF(CMAKE_COMPILER_IS_GNUCXX)
SET(MY_C_AND_CXX_DBG_FLAGS -ggdb3 -Og)
SET(MY_C_AND_CXX_DBG_FLAGS_STR "-ggdb3 -Og")
ELSE()
SET(MY_C_AND_CXX_DBG_FLAGS -g)
SET(MY_C_AND_CXX_DBG_FLAGS_STR "-g")
ENDIF()
# common flags
@ -331,15 +328,21 @@ IF(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
ADD_COMPILE_OPTIONS($<$<COMPILE_LANGUAGE:CXX>:${CXX_COMPILE_FLAG}>)
ENDFOREACH()
# need opt flags for link step for LTO, including -flto
# but don't use LTO for debug builds, too slow
IF(CMAKE_BUILD_TYPE STREQUAL Debug)
SET(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${MY_C_AND_CXX_DBG_FLAGS_STR}")
SET(CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} ${MY_C_AND_CXX_DBG_FLAGS_STR}")
ELSE()
SET(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${MY_C_AND_CXX_OPT_FLAGS_STR}")
SET(CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} ${MY_C_AND_CXX_OPT_FLAGS_STR}")
ENDIF()
# make a string of compile options to add to link flags
UNSET(C_COMPILE_FLAGS_STR)
UNSET(CXX_COMPILE_FLAGS_STR)
FOREACH(ARG ${MY_C_FLAGS})
SET(C_COMPILE_FLAGS_STR "${C_COMPILE_FLAGS_STR} ${ARG}")
ENDFOREACH()
FOREACH(ARG ${MY_CXX_FLAGS})
SET(CXX_COMPILE_FLAGS_STR "${CXX_COMPILE_FLAGS_STR} ${ARG}")
ENDFOREACH()
# need all flags for linking, because of -flto etc.
SET(CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} ${C_COMPILE_FLAGS_STR}")
SET(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${CXX_COMPILE_FLAGS_STR}")
# for the gcc -fstack-protector* flags we need libssp
# we also have to use the gcc- binutils for LTO to work
@ -353,12 +356,12 @@ IF(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
FIND_PACKAGE(SSP)
IF(SSP_LIBRARY)
SET(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${SSP_LIBRARY}")
SET(CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} ${SSP_LIBRARY}")
SET(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${SSP_LIBRARY}")
ENDIF(SSP_LIBRARY)
SET(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} -Wl,-allow-multiple-definition")
SET(CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} -Wl,-allow-multiple-definition")
SET(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} -Wl,-allow-multiple-definition")
ENDIF()
ENDIF()