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84 lines
3.0 KiB
84 lines
3.0 KiB
#***************************************************************************
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# _ _ ____ _
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# Project ___| | | | _ \| |
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# / __| | | | |_) | |
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# | (__| |_| | _ <| |___
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# \___|\___/|_| \_\_____|
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#
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# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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#
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# This software is licensed as described in the file COPYING, which
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# you should have received as part of this distribution. The terms
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# are also available at https://curl.se/docs/copyright.html.
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#
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# You may opt to use, copy, modify, merge, publish, distribute and/or sell
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# copies of the Software, and permit persons to whom the Software is
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# furnished to do so, under the terms of the COPYING file.
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#
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# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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# KIND, either express or implied.
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#
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# SPDX-License-Identifier: curl
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#
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###########################################################################
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# Find the nettle library
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#
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# Input variables:
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#
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# NETTLE_INCLUDE_DIR The nettle include directory
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# NETTLE_LIBRARY Path to nettle library
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#
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# Result variables:
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#
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# NETTLE_FOUND System has nettle
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# NETTLE_INCLUDE_DIRS The nettle include directories
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# NETTLE_LIBRARIES The nettle library names
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# NETTLE_LIBRARY_DIRS The nettle library directories
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# NETTLE_CFLAGS Required compiler flags
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# NETTLE_VERSION Version of nettle
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if(CURL_USE_PKGCONFIG AND
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NOT DEFINED NETTLE_INCLUDE_DIR AND
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NOT DEFINED NETTLE_LIBRARY)
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find_package(PkgConfig QUIET)
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pkg_check_modules(NETTLE "nettle")
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endif()
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if(NETTLE_FOUND)
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string(REPLACE ";" " " NETTLE_CFLAGS "${NETTLE_CFLAGS}")
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message(STATUS "Found Nettle (via pkg-config): ${NETTLE_INCLUDE_DIRS} (found version \"${NETTLE_VERSION}\")")
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else()
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find_path(NETTLE_INCLUDE_DIR NAMES "nettle/sha2.h")
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find_library(NETTLE_LIBRARY NAMES "nettle")
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if(NETTLE_INCLUDE_DIR AND EXISTS "${NETTLE_INCLUDE_DIR}/nettle/version.h")
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set(_version_regex1 "#[\t ]*define[ \t]+NETTLE_VERSION_MAJOR[ \t]+([0-9]+).*")
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set(_version_regex2 "#[\t ]*define[ \t]+NETTLE_VERSION_MINOR[ \t]+([0-9]+).*")
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file(STRINGS "${NETTLE_INCLUDE_DIR}/nettle/version.h" _version_str1 REGEX "${_version_regex1}")
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file(STRINGS "${NETTLE_INCLUDE_DIR}/nettle/version.h" _version_str2 REGEX "${_version_regex2}")
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string(REGEX REPLACE "${_version_regex1}" "\\1" _version_str1 "${_version_str1}")
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string(REGEX REPLACE "${_version_regex2}" "\\1" _version_str2 "${_version_str2}")
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set(NETTLE_VERSION "${_version_str1}.${_version_str2}")
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unset(_version_regex1)
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unset(_version_regex2)
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unset(_version_str1)
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unset(_version_str2)
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Nettle
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REQUIRED_VARS
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NETTLE_INCLUDE_DIR
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NETTLE_LIBRARY
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VERSION_VAR
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NETTLE_VERSION
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)
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if(NETTLE_FOUND)
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set(NETTLE_INCLUDE_DIRS ${NETTLE_INCLUDE_DIR})
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set(NETTLE_LIBRARIES ${NETTLE_LIBRARY})
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endif()
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mark_as_advanced(NETTLE_INCLUDE_DIR NETTLE_LIBRARY)
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endif()
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