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#=============================================================================
# SPDX-FileCopyrightText: 2019 Harald Sitter <sitter@kde.org>
#
# SPDX-License-Identifier: BSD-3-Clause
#=============================================================================
find_package(PkgConfig QUIET)
pkg_check_modules(PC_LZ4 lz4 QUIET)
find_library(LZ4_LIBRARIES
NAMES lz4
HINTS ${PC_LZ4_LIBRARY_DIRS}
)
find_path(LZ4_INCLUDE_DIR
NAMES lz4.h
HINTS ${PC_LZ4_INCLUDE_DIRS}
)
set(LZ4_VERSION "${PC_LZ4_VERSION}")
if(NOT LZ4_VERSION)
if(EXISTS "${LZ4_INCLUDE_DIR}/lz4.h")
file(READ "${LZ4_INCLUDE_DIR}/lz4.h" LZ4_H_CONTENT)
string(REGEX MATCH "#define LZ4_VERSION_MAJOR[ ]+[0-9]+" LZ4_VERSION_MAJOR_MATCH ${LZ4_H_CONTENT})
string(REGEX MATCH "#define LZ4_VERSION_MINOR[ ]+[0-9]+" LZ4_VERSION_MINOR_MATCH ${LZ4_H_CONTENT})
string(REGEX MATCH "#define LZ4_VERSION_RELEASE[ ]+[0-9]+" LZ4_VERSION_RELEASE_MATCH ${LZ4_H_CONTENT})
string(REGEX REPLACE ".*_MAJOR[ ]+(.*)" "\\1" LZ4_VERSION_MAJOR ${LZ4_VERSION_MAJOR_MATCH})
string(REGEX REPLACE ".*_MINOR[ ]+(.*)" "\\1" LZ4_VERSION_MINOR ${LZ4_VERSION_MINOR_MATCH})
string(REGEX REPLACE ".*_RELEASE[ ]+(.*)" "\\1" LZ4_VERSION_RELEASE ${LZ4_VERSION_RELEASE_MATCH})
set(LZ4_VERSION "${LZ4_VERSION_MAJOR}.${LZ4_VERSION_MINOR}.${LZ4_VERSION_RELEASE}")
else()
set(LZ4_VERSION "0.0.0")
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LZ4
REQUIRED_VARS
LZ4_LIBRARIES
LZ4_INCLUDE_DIR
VERSION_VAR
LZ4_VERSION
)
if(LZ4_FOUND AND NOT TARGET lz4::lz4)
add_library(lz4::lz4 UNKNOWN IMPORTED)
set_target_properties(lz4::lz4 PROPERTIES
IMPORTED_LOCATION "${LZ4_LIBRARIES}"
INTERFACE_COMPILE_OPTIONS "${PC_LZ4_CFLAGS}"
INTERFACE_INCLUDE_DIRECTORIES "${LZ4_INCLUDE_DIR}"
)
else()
set(LZ4_LIBRARIES "")
endif()
mark_as_advanced(LZ4_LIBRARIES LZ4_INCLUDE_DIR LZ4_VERSION)
include(FeatureSummary)
set_package_properties(LZ4 PROPERTIES
DESCRIPTION "Lossless compression algorithm"
URL "https://lz4.github.io/lz4/"
)
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