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include(ncine_helpers)
if(NOT TARGET Lz4)
if(NCINE_DOWNLOAD_DEPENDENCIES)
# Try to build `lz4` from source
set(LZ4_URL "https://github.com/lz4/lz4/archive/refs/tags/v1.10.0.tar.gz")
message(STATUS "Downloading dependencies from \"${LZ4_URL}\"...")
include(FetchContent)
FetchContent_Declare(
Lz4Git
DOWNLOAD_EXTRACT_TIMESTAMP TRUE
URL ${LZ4_URL}
)
FetchContent_MakeAvailable(Lz4Git)
ncine_add_dependency(Lz4 STATIC)
set(LZ4_DIR "${lz4git_SOURCE_DIR}/lib")
set(LZ4_INCLUDE_DIR "${LZ4_DIR}")
set_target_properties(Lz4 PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES ${LZ4_INCLUDE_DIR})
set(LZ4_HEADERS
${LZ4_INCLUDE_DIR}/lz4.h
${LZ4_INCLUDE_DIR}/lz4file.h
${LZ4_INCLUDE_DIR}/lz4frame.h
${LZ4_INCLUDE_DIR}/lz4hc.h
${LZ4_INCLUDE_DIR}/xxhash.h
)
set(LZ4_SOURCES
${LZ4_DIR}/lz4.c
${LZ4_DIR}/lz4file.c
${LZ4_DIR}/lz4frame.c
${LZ4_DIR}/lz4hc.c
${LZ4_DIR}/xxhash.c
)
ncine_assign_source_group(PATH_PREFIX ${LZ4_DIR} FILES ${LZ4_HEADERS} ${LZ4_SOURCES} SKIP_EXTERNAL)
target_sources(Lz4 PRIVATE ${LZ4_SOURCES} ${LZ4_HEADERS})
target_include_directories(Lz4 PRIVATE ${LZ4_INCLUDE_DIR})
set(LZ4_FOUND TRUE)
set(LZ4_STATIC TRUE)
mark_as_advanced(LZ4_STATIC)
else()
find_package(PkgConfig REQUIRED)
pkg_check_modules(Lz4 REQUIRED IMPORTED_TARGET liblz4)
if(TARGET PkgConfig::Lz4)
message(STATUS "Using Lz4 from PkgConfig")
add_library(Lz4 ALIAS PkgConfig::Lz4)
endif()
endif()
endif()
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