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64 lines
2.1 KiB
CMake
Vendored
64 lines
2.1 KiB
CMake
Vendored
# Copyright (C) 1995-2019, Rene Brun and Fons Rademakers.
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# All rights reserved.
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#
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# This is licensed as LGPL 2.1 by the authors.
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# For the licensing terms see COPYING and
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# libdwarf/LIBDWARFCOPYRIGHT
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# or https://github.com/root-project/root/blob/master/LICENSE
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# For the list of contributors in the project that
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# created this cmake file see
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# https://github.com/root-project/root/blob/master/README/CREDITS
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#.rst:
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# FindZSTD
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# -----------
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#
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# Find the ZSTD library header and define variables.
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#
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# Imported Targets
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# ^^^^^^^^^^^^^^^^
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#
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# This module defines :prop_tgt:`IMPORTED` target ``ZSTD::ZSTD``,
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# if ZSTD has been found
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#
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# Result Variables
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# ^^^^^^^^^^^^^^^^
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#
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# This module defines the following variables:
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#
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# ::
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#
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# zstd_FOUND - True if ZSTD is found.
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# ZSTD_INCLUDE_DIRS - Where to find zstd.h
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#
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# Finds the Zstandard library. This module defines:
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# - ZSTD_INCLUDE_DIR, directory containing headers
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# - ZSTD_LIBRARIES, the Zstandard library path
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# - zstd_FOUND, whether Zstandard has been found
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# Find header files
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find_path(ZSTD_INCLUDE_DIR zstd.h)
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# Find a ZSTD version
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if (ZSTD_INCLUDE_DIR AND EXISTS "${ZSTD_INCLUDE_DIR}/zstd.h")
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file(READ "${ZSTD_INCLUDE_DIR}/zstd.h" CONTENT)
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string(REGEX MATCH ".*define ZSTD_VERSION_MAJOR *([0-9]+).*define ZSTD_VERSION_MINOR *([0-9]+).*define ZSTD_VERSION_RELEASE *([0-9]+)" VERSION_REGEX "${CONTENT}")
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set(ZSTD_VERSION_MAJOR ${CMAKE_MATCH_1})
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set(ZSTD_VERSION_MINOR ${CMAKE_MATCH_2})
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set(ZSTD_VERSION_RELEASE ${CMAKE_MATCH_3})
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set(ZSTD_VERSION "${ZSTD_VERSION_MAJOR}.${ZSTD_VERSION_MINOR}.${ZSTD_VERSION_RELEASE}")
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endif ()
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# Find library
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find_library(ZSTD_LIBRARIES NAMES zstd)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(zstd REQUIRED_VARS ZSTD_LIBRARIES ZSTD_INCLUDE_DIR ZSTD_VERSION VERSION_VAR ZSTD_VERSION)
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if (zstd_FOUND)
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if (NOT TARGET ZSTD::ZSTD)
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add_library(ZSTD::ZSTD UNKNOWN IMPORTED)
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set_target_properties(ZSTD::ZSTD PROPERTIES IMPORTED_LOCATION "${ZSTD_LIBRARIES}" INTERFACE_INCLUDE_DIRECTORIES "${ZSTD_INCLUDE_DIR}")
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endif ()
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endif ()
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