Add: Support Zstandard(zstd) savegame compression
(cherry picked from commit 6f0aeaf2c5436550c93205e704624957e9abc969)pull/221/head
dP
3 years ago
committed by
Jonathan G Rennison
parent
0a31a3b923
commit
b284d34277
@ -0,0 +1,89 @@
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#[=======================================================================[.rst:
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FindZSTD
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-------
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Finds the ZSTD library.
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Result Variables
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^^^^^^^^^^^^^^^^
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This will define the following variables:
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``ZSTD_FOUND``
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True if the system has the ZSTD library.
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``ZSTD_INCLUDE_DIRS``
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Include directories needed to use ZSTD.
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``ZSTD_LIBRARIES``
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Libraries needed to link to ZSTD.
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``ZSTD_VERSION``
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The version of the ZSTD library which was found.
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Cache Variables
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^^^^^^^^^^^^^^^
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The following cache variables may also be set:
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``ZSTD_INCLUDE_DIR``
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The directory containing ``zstd.h``.
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``ZSTD_LIBRARY``
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The path to the ZSTD library.
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#]=======================================================================]
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find_package(PkgConfig QUIET)
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pkg_check_modules(PC_ZSTD QUIET libzstd)
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find_path(ZSTD_INCLUDE_DIR
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NAMES zstd.h
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PATHS ${PC_ZSTD_INCLUDE_DIRS}
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)
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find_library(ZSTD_LIBRARY
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NAMES zstd
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PATHS ${PC_ZSTD_LIBRARY_DIRS}
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)
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# With vcpkg, the library path should contain both 'debug' and 'optimized'
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# entries (see target_link_libraries() documentation for more information)
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#
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# NOTE: we only patch up when using vcpkg; the same issue might happen
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# when not using vcpkg, but this is non-trivial to fix, as we have no idea
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# what the paths are. With vcpkg we do. And we only official support vcpkg
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# with Windows.
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#
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# NOTE: this is based on the assumption that the debug file has the same
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# name as the optimized file. This is not always the case, but so far
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# experiences has shown that in those case vcpkg CMake files do the right
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# thing.
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if(VCPKG_TOOLCHAIN AND ZSTD_LIBRARY)
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if(ZSTD_LIBRARY MATCHES "/debug/")
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set(ZSTD_LIBRARY_DEBUG ${ZSTD_LIBRARY})
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string(REPLACE "/debug/lib/" "/lib/" ZSTD_LIBRARY_RELEASE ${ZSTD_LIBRARY})
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else()
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set(ZSTD_LIBRARY_RELEASE ${ZSTD_LIBRARY})
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string(REPLACE "/lib/" "/debug/lib/" ZSTD_LIBRARY_DEBUG ${ZSTD_LIBRARY})
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endif()
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include(SelectLibraryConfigurations)
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select_library_configurations(ZSTD)
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endif()
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set(ZSTD_VERSION ${PC_ZSTD_VERSION})
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(ZSTD
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FOUND_VAR ZSTD_FOUND
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REQUIRED_VARS
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ZSTD_LIBRARY
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ZSTD_INCLUDE_DIR
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VERSION_VAR ZSTD_VERSION
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)
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if(ZSTD_FOUND)
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set(ZSTD_LIBRARIES ${ZSTD_LIBRARY})
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set(ZSTD_INCLUDE_DIRS ${ZSTD_INCLUDE_DIR})
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endif()
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mark_as_advanced(
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ZSTD_INCLUDE_DIR
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ZSTD_LIBRARY
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)
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