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24 lines
618 B
CMake
24 lines
618 B
CMake
# -flto
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include(CheckIPOSupported)
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option(WITH_LTO "enable lto on compile time" ON)
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if(WITH_LTO)
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if(WIN32)
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message(FATAL_ERROR "LTO not supported on win32 targets, please set -DWITH_LTO=OFF")
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endif()
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check_ipo_supported(RESULT IPO_ENABLED OUTPUT ipo_error)
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if(IPO_ENABLED)
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message(STATUS "LTO enabled")
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else()
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message(WARNING "LTO not supported by compiler: ${ipo_error}")
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endif()
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else()
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message(STATUS "LTO disabled")
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set(IPO_ENABLED OFF)
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endif()
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function(enable_lto)
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if(IPO_ENABLED)
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set_target_properties(${ARGN} PROPERTIES INTERPROCEDURAL_OPTIMIZATION ON)
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endif()
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endfunction()
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