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-rw-r--r--externals/find-modules/Findlz4.cmake54
1 files changed, 54 insertions, 0 deletions
diff --git a/externals/find-modules/Findlz4.cmake b/externals/find-modules/Findlz4.cmake
new file mode 100644
index 000000000..6279854c0
--- /dev/null
+++ b/externals/find-modules/Findlz4.cmake
@@ -0,0 +1,54 @@
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_lz4 QUIET lz4)
+
+find_path(lz4_INCLUDE_DIR
+ NAMES lz4.h
+ PATHS ${PC_lz4_INCLUDE_DIRS}
+)
+find_library(lz4_LIBRARY
+ NAMES lz4
+ PATHS ${PC_lz4_LIBRARY_DIRS}
+)
+
+if(lz4_INCLUDE_DIR)
+ file(STRINGS "${lz4_INCLUDE_DIR}/lz4.h" _lz4_version_lines
+ REGEX "#define[ \t]+LZ4_VERSION_(MAJOR|MINOR|RELEASE)")
+ string(REGEX REPLACE ".*LZ4_VERSION_MAJOR *\([0-9]*\).*" "\\1" _lz4_version_major "${_lz4_version_lines}")
+ string(REGEX REPLACE ".*LZ4_VERSION_MINOR *\([0-9]*\).*" "\\1" _lz4_version_minor "${_lz4_version_lines}")
+ string(REGEX REPLACE ".*LZ4_VERSION_RELEASE *\([0-9]*\).*" "\\1" _lz4_version_release "${_lz4_version_lines}")
+ set(lz4_VERSION "${_lz4_version_major}.${_lz4_version_minor}.${_lz4_version_release}")
+ unset(_lz4_version_major)
+ unset(_lz4_version_minor)
+ unset(_lz4_version_release)
+ unset(_lz4_version_lines)
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(lz4
+ FOUND_VAR lz4_FOUND
+ REQUIRED_VARS
+ lz4_LIBRARY
+ lz4_INCLUDE_DIR
+ VERSION_VAR lz4_VERSION
+)
+
+if(lz4_FOUND)
+ set(lz4_LIBRARIES ${lz4_LIBRARY})
+ set(lz4_INCLUDE_DIRS ${lz4_INCLUDE_DIR})
+ set(lz4_DEFINITIONS ${PC_lz4_CFLAGS_OTHER})
+endif()
+
+if(lz4_FOUND AND NOT TARGET lz4::lz4)
+ add_library(lz4::lz4 UNKNOWN IMPORTED)
+ set_target_properties(lz4::lz4 PROPERTIES
+ IMPORTED_LOCATION "${lz4_LIBRARY}"
+ INTERFACE_COMPILE_OPTIONS "${PC_lz4_CFLAGS_OTHER}"
+ INTERFACE_INCLUDE_DIRECTORIES "${lz4_INCLUDE_DIR}"
+ )
+endif()
+
+mark_as_advanced(
+ lz4_INCLUDE_DIR
+ lz4_LIBRARY
+)