init.cmake

# Attention: cmake will append these flags to compile command automatically.
# So if you want to add global option, change this file rather than flags.cmake

# Linux
# DEBUG:  default: "-g"
# RELEASE:  default: "-O3 -DNDEBUG"
# RELWITHDEBINFO: default: "-O2 -g -DNDEBUG"
# MINSIZEREL: default: "-O2 -g -DNDEBUG"

if(NOT WIN32)
    set(CMAKE_C_FLAGS_DEBUG "-g")
    set(CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG")
    set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -g -DNDEBUG")
    set(CMAKE_C_FLAGS_MINSIZEREL "-Os -DNDEBUG")

    set(CMAKE_CXX_FLAGS_DEBUG "-g")
    set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG")
    set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g -DNDEBUG")
    set(CMAKE_CXX_FLAGS_MINSIZEREL "-Os -DNDEBUG")
    
    if(WITH_GPU)
        set(CMAKE_CUDA_FLAGS_DEBUG "-g")
        set(CMAKE_CUDA_FLAGS_RELEASE "-O3 -DNDEBUG")
        set(CMAKE_CUDA_FLAGS_RELWITHDEBINFO "-O2 -g -DNDEBUG")
        set(CMAKE_CUDA_FLAGS_MINSIZEREL "-O1 -DNDEBUG")
    endif()
else()
    set(CMAKE_C_FLAGS_DEBUG "/MDd /Zi /Ob0 /Od /RTC1")
    set(CMAKE_C_FLAGS_RELEASE "/MD /O2 /Ob2 /DNDEBUG")
    set(CMAKE_C_FLAGS_RELWITHDEBINFO "/MD /Zi /O2 /Ob1 /DNDEBUG")
    set(CMAKE_C_FLAGS_MINSIZEREL "/MD /O1 /Ob1 /DNDEBUG")

    set(CMAKE_CXX_FLAGS_DEBUG "/MDd /Zi /Ob0 /Od /RTC1")
    set(CMAKE_CXX_FLAGS_RELEASE "/MD /O2 /Ob2 /DNDEBUG")
    set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "/MD /Zi /O2 /Ob1 /DNDEBUG")
    set(CMAKE_CXX_FLAGS_MINSIZEREL "/MD /O1 /Ob1 /DNDEBUG")

    if(WITH_GPU)
        set(CMAKE_CUDA_FLAGS_DEBUG "-Xcompiler=\"-MDd -Zi -Ob0 -Od /RTC1\"")
        set(CMAKE_CUDA_FLAGS_RELEASE "-Xcompiler=\"-MD -O2 -Ob2\" -DNDEBUG")
        set(CMAKE_CUDA_FLAGS_RELWITHDEBINFO "-Xcompiler=\"-MD -Zi -O2 -Ob1\" -DNDEBUG")
        set(CMAKE_CUDA_FLAGS_MINSIZEREL "-Xcompiler=\"-MD -O1 -Ob1\" -DNDEBUG")
    endif()

    # It can specify CUDA compile flag manualy,
    # its use is to remvoe /Zi to reduce GPU static library size. But it's dangerous
    # because CUDA will update by nvidia, then error will occur.
    # Now, it's only used in VS2015 + CUDA:[10.0, 10.2]
    set(WIN_PROPS ${CMAKE_SOURCE_DIR}/cmake/paddle_win.props)
endif()