diff options
Diffstat (limited to 'src/zstd/build/cmake/CMakeModules/FindLibLZ4.cmake')
| -rw-r--r-- | src/zstd/build/cmake/CMakeModules/FindLibLZ4.cmake | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/zstd/build/cmake/CMakeModules/FindLibLZ4.cmake b/src/zstd/build/cmake/CMakeModules/FindLibLZ4.cmake new file mode 100644 index 000000000..d0fac06da --- /dev/null +++ b/src/zstd/build/cmake/CMakeModules/FindLibLZ4.cmake @@ -0,0 +1,49 @@ +# Find LibLZ4 +# +# Find LibLZ4 headers and library +# +# Result Variables +# +# LIBLZ4_FOUND - True if lz4 is found +# LIBLZ4_INCLUDE_DIRS - lz4 headers directories +# LIBLZ4_LIBRARIES - lz4 libraries +# LIBLZ4_VERSION_MAJOR - The major version of lz4 +# LIBLZ4_VERSION_MINOR - The minor version of lz4 +# LIBLZ4_VERSION_RELEASE - The release version of lz4 +# LIBLZ4_VERSION_STRING - version number string (e.g. 1.8.3) +# +# Hints +# +# Set ``LZ4_ROOT_DIR`` to the directory of lz4.h and lz4 library + +set(_LIBLZ4_ROOT_HINTS + ENV LZ4_ROOT_DIR) + +find_path( LIBLZ4_INCLUDE_DIR lz4.h + HINTS ${_LIBLZ4_ROOT_HINTS}) +find_library( LIBLZ4_LIBRARY NAMES lz4 liblz4 liblz4_static + HINTS ${_LIBLZ4_ROOT_HINTS}) + +if(LIBLZ4_INCLUDE_DIR) + file(STRINGS "${LIBLZ4_INCLUDE_DIR}/lz4.h" LIBLZ4_HEADER_CONTENT REGEX "#define LZ4_VERSION_[A-Z]+ +[0-9]+") + + string(REGEX REPLACE ".*#define LZ4_VERSION_MAJOR +([0-9]+).*" "\\1" LIBLZ4_VERSION_MAJOR "${LIBLZ4_HEADER_CONTENT}") + string(REGEX REPLACE ".*#define LZ4_VERSION_MINOR +([0-9]+).*" "\\1" LIBLZ4_VERSION_MINOR "${LIBLZ4_HEADER_CONTENT}") + string(REGEX REPLACE ".*#define LZ4_VERSION_RELEASE +([0-9]+).*" "\\1" LIBLZ4_VERSION_RELEASE "${LIBLZ4_HEADER_CONTENT}") + + set(LIBLZ4_VERSION_STRING "${LIBLZ4_VERSION_MAJOR}.${LIBLZ4_VERSION_MINOR}.${LIBLZ4_VERSION_RELEASE}") + unset(LIBLZ4_HEADER_CONTENT) +endif() + +include(FindPackageHandleStandardArgs) +FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibLZ4 REQUIRED_VARS LIBLZ4_INCLUDE_DIR + LIBLZ4_LIBRARY + VERSION_VAR LIBLZ4_VERSION_STRING + FAIL_MESSAGE "Could NOT find LZ4, try to set the paths to lz4.h and lz4 library in environment variable LZ4_ROOT_DIR") + +if (LIBLZ4_FOUND) + set(LIBLZ4_LIBRARIES ${LIBLZ4_LIBRARY}) + set(LIBLZ4_INCLUDE_DIRS ${LIBLZ4_INCLUDE_DIR}) +endif () + +mark_as_advanced( LIBLZ4_INCLUDE_DIR LIBLZ4_LIBRARY ) |