50 lines
2.0 KiB
CMake
50 lines
2.0 KiB
CMake
# Find LibLZ4
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#
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# Find LibLZ4 headers and library
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#
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# Result Variables
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#
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# LIBLZ4_FOUND - True if lz4 is found
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# LIBLZ4_INCLUDE_DIRS - lz4 headers directories
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# LIBLZ4_LIBRARIES - lz4 libraries
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# LIBLZ4_VERSION_MAJOR - The major version of lz4
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# LIBLZ4_VERSION_MINOR - The minor version of lz4
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# LIBLZ4_VERSION_RELEASE - The release version of lz4
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# LIBLZ4_VERSION_STRING - version number string (e.g. 1.8.3)
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#
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# Hints
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#
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# Set ``LZ4_ROOT_DIR`` to the directory of lz4.h and lz4 library
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set(_LIBLZ4_ROOT_HINTS
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ENV LZ4_ROOT_DIR)
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find_path( LIBLZ4_INCLUDE_DIR lz4.h
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HINTS ${_LIBLZ4_ROOT_HINTS})
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find_library( LIBLZ4_LIBRARY NAMES lz4 liblz4 liblz4_static
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HINTS ${_LIBLZ4_ROOT_HINTS})
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if(LIBLZ4_INCLUDE_DIR)
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file(STRINGS "${LIBLZ4_INCLUDE_DIR}/lz4.h" LIBLZ4_HEADER_CONTENT REGEX "#define LZ4_VERSION_[A-Z]+ +[0-9]+")
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string(REGEX REPLACE ".*#define LZ4_VERSION_MAJOR +([0-9]+).*" "\\1" LIBLZ4_VERSION_MAJOR "${LIBLZ4_HEADER_CONTENT}")
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string(REGEX REPLACE ".*#define LZ4_VERSION_MINOR +([0-9]+).*" "\\1" LIBLZ4_VERSION_MINOR "${LIBLZ4_HEADER_CONTENT}")
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string(REGEX REPLACE ".*#define LZ4_VERSION_RELEASE +([0-9]+).*" "\\1" LIBLZ4_VERSION_RELEASE "${LIBLZ4_HEADER_CONTENT}")
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set(LIBLZ4_VERSION_STRING "${LIBLZ4_VERSION_MAJOR}.${LIBLZ4_VERSION_MINOR}.${LIBLZ4_VERSION_RELEASE}")
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unset(LIBLZ4_HEADER_CONTENT)
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endif()
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include(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibLZ4 REQUIRED_VARS LIBLZ4_INCLUDE_DIR
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LIBLZ4_LIBRARY
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VERSION_VAR LIBLZ4_VERSION_STRING
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FAIL_MESSAGE "Could NOT find LZ4, try to set the paths to lz4.h and lz4 library in environment variable LZ4_ROOT_DIR")
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if (LIBLZ4_FOUND)
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set(LIBLZ4_LIBRARIES ${LIBLZ4_LIBRARY})
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set(LIBLZ4_INCLUDE_DIRS ${LIBLZ4_INCLUDE_DIR})
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endif ()
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mark_as_advanced( LIBLZ4_INCLUDE_DIR LIBLZ4_LIBRARY )
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