FindZstd.cmake (3890B)
1 #*************************************************************************** 2 # _ _ ____ _ 3 # Project ___| | | | _ \| | 4 # / __| | | | |_) | | 5 # | (__| |_| | _ <| |___ 6 # \___|\___/|_| \_\_____| 7 # 8 # Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 9 # 10 # This software is licensed as described in the file COPYING, which 11 # you should have received as part of this distribution. The terms 12 # are also available at https://curl.se/docs/copyright.html. 13 # 14 # You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 # copies of the Software, and permit persons to whom the Software is 16 # furnished to do so, under the terms of the COPYING file. 17 # 18 # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 # KIND, either express or implied. 20 # 21 # SPDX-License-Identifier: curl 22 # 23 ########################################################################### 24 # Find the zstd library 25 # 26 # Input variables: 27 # 28 # - `ZSTD_INCLUDE_DIR`: The zstd include directory. 29 # - `ZSTD_LIBRARY`: Path to `zstd` library. 30 # 31 # Result variables: 32 # 33 # - `ZSTD_FOUND`: System has zstd. 34 # - `ZSTD_INCLUDE_DIRS`: The zstd include directories. 35 # - `ZSTD_LIBRARIES`: The zstd library names. 36 # - `ZSTD_LIBRARY_DIRS`: The zstd library directories. 37 # - `ZSTD_PC_REQUIRES`: The zstd pkg-config packages. 38 # - `ZSTD_CFLAGS`: Required compiler flags. 39 # - `ZSTD_VERSION`: Version of zstd. 40 41 if(DEFINED Zstd_INCLUDE_DIR AND NOT DEFINED ZSTD_INCLUDE_DIR) 42 message(WARNING "Zstd_INCLUDE_DIR is deprecated, use ZSTD_INCLUDE_DIR instead.") 43 set(ZSTD_INCLUDE_DIR "${Zstd_INCLUDE_DIR}") 44 endif() 45 if(DEFINED Zstd_LIBRARY AND NOT DEFINED ZSTD_LIBRARY) 46 message(WARNING "Zstd_LIBRARY is deprecated, use ZSTD_LIBRARY instead.") 47 set(ZSTD_LIBRARY "${Zstd_LIBRARY}") 48 endif() 49 50 set(ZSTD_PC_REQUIRES "libzstd") 51 52 if(CURL_USE_PKGCONFIG AND 53 NOT DEFINED ZSTD_INCLUDE_DIR AND 54 NOT DEFINED ZSTD_LIBRARY) 55 find_package(PkgConfig QUIET) 56 pkg_check_modules(ZSTD ${ZSTD_PC_REQUIRES}) 57 endif() 58 59 if(ZSTD_FOUND) 60 set(Zstd_FOUND TRUE) 61 string(REPLACE ";" " " ZSTD_CFLAGS "${ZSTD_CFLAGS}") 62 message(STATUS "Found Zstd (via pkg-config): ${ZSTD_INCLUDE_DIRS} (found version \"${ZSTD_VERSION}\")") 63 else() 64 find_path(ZSTD_INCLUDE_DIR NAMES "zstd.h") 65 find_library(ZSTD_LIBRARY NAMES "zstd") 66 67 unset(ZSTD_VERSION CACHE) 68 if(ZSTD_INCLUDE_DIR AND EXISTS "${ZSTD_INCLUDE_DIR}/zstd.h") 69 set(_version_regex1 "#[\t ]*define[ \t]+ZSTD_VERSION_MAJOR[ \t]+([0-9]+).*") 70 set(_version_regex2 "#[\t ]*define[ \t]+ZSTD_VERSION_MINOR[ \t]+([0-9]+).*") 71 set(_version_regex3 "#[\t ]*define[ \t]+ZSTD_VERSION_RELEASE[ \t]+([0-9]+).*") 72 file(STRINGS "${ZSTD_INCLUDE_DIR}/zstd.h" _version_str1 REGEX "${_version_regex1}") 73 file(STRINGS "${ZSTD_INCLUDE_DIR}/zstd.h" _version_str2 REGEX "${_version_regex2}") 74 file(STRINGS "${ZSTD_INCLUDE_DIR}/zstd.h" _version_str3 REGEX "${_version_regex3}") 75 string(REGEX REPLACE "${_version_regex1}" "\\1" _version_str1 "${_version_str1}") 76 string(REGEX REPLACE "${_version_regex2}" "\\1" _version_str2 "${_version_str2}") 77 string(REGEX REPLACE "${_version_regex3}" "\\1" _version_str3 "${_version_str3}") 78 set(ZSTD_VERSION "${_version_str1}.${_version_str2}.${_version_str3}") 79 unset(_version_regex1) 80 unset(_version_regex2) 81 unset(_version_regex3) 82 unset(_version_str1) 83 unset(_version_str2) 84 unset(_version_str3) 85 endif() 86 87 include(FindPackageHandleStandardArgs) 88 find_package_handle_standard_args(Zstd 89 REQUIRED_VARS 90 ZSTD_INCLUDE_DIR 91 ZSTD_LIBRARY 92 VERSION_VAR 93 ZSTD_VERSION 94 ) 95 96 if(ZSTD_FOUND) 97 set(ZSTD_INCLUDE_DIRS ${ZSTD_INCLUDE_DIR}) 98 set(ZSTD_LIBRARIES ${ZSTD_LIBRARY}) 99 endif() 100 101 mark_as_advanced(ZSTD_INCLUDE_DIR ZSTD_LIBRARY) 102 endif()