mirror of
https://github.com/GerbilSoft/rom-properties.git
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52 lines
1.4 KiB
CMake
52 lines
1.4 KiB
CMake
# Check for LZ4.
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# If LZ4 isn't found, extlib/lz4/ will be used instead.
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IF(ENABLE_LZ4)
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IF(NOT USE_INTERNAL_LZ4)
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IF(LZ4_LIBRARY MATCHES "^lz4$" OR LZ4_LIBRARY MATCHES "^lz4")
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# Internal LZ4 was previously in use.
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UNSET(LZ4_FOUND)
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UNSET(HAVE_LZ4)
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UNSET(LZ4_LIBRARY CACHE)
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UNSET(LZ4_LIBRARIES CACHE)
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ENDIF()
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# Check for LZ4.
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FIND_PACKAGE(LZ4)
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IF(LZ4_FOUND)
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# Found system LZ4.
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SET(HAVE_LZ4 1)
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ELSE()
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# System LZ4 was not found.
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MESSAGE(STATUS "Using the internal copy of LZ4 since a system version was not found.")
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SET(USE_INTERNAL_LZ4 ON CACHE BOOL "Use the internal copy of LZ4" FORCE)
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ENDIF()
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ELSE()
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MESSAGE(STATUS "Using the internal copy of LZ4.")
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ENDIF(NOT USE_INTERNAL_LZ4)
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IF(USE_INTERNAL_LZ4)
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# Using the internal LZ4 library.
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SET(LZ4_FOUND 1)
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SET(HAVE_LZ4 1)
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# FIXME: When was it changed from LIBRARY to LIBRARIES?
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IF(WIN32)
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# Using DLLs on Windows.
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SET(USE_INTERNAL_LZ4_DLL ON)
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SET(LZ4_LIBRARY lz4_shared CACHE INTERNAL "LZ4 library" FORCE)
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ELSE()
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# Using static linking on other systems.
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SET(USE_INTERNAL_LZ4_DLL OFF)
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SET(LZ4_LIBRARY lz4_static CACHE INTERNAL "LZ4 library" FORCE)
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ENDIF()
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SET(LZ4_LIBRARIES ${LZ4_LIBRARY})
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# FIXME: When was it changed from DIR to DIRS?
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SET(LZ4_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/extlib/lz4)
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SET(LZ4_INCLUDE_DIRS ${LZ4_INCLUDE_DIR})
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ELSE(USE_INTERNAL_LZ4)
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SET(USE_INTERNAL_LZ4_DLL OFF)
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ENDIF(USE_INTERNAL_LZ4)
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ENDIF(ENABLE_LZ4)
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