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d511ec8b0a
The idea of linking dependencies found to `libcurl.pc` turns out not to work in practice in some cases. Specifically: gss, ldap, mbedtls, libmsh3, rustls A `.pc` may not work or be missing for a couple of reasons: - not all build methods generate it: mbedTLS, Rustls - generated file is broken: msh3 Ref: https://github.com/nibanks/msh3/pull/225 - installed package flavour isn't shipping with one: FreeBSD GSS, OmniOS LDAP, macOS LDAP The effect of such issues shall be subtle in theory, because `libcurl.pc` normally lists these dependencies in the `Requires.private` section meant for static linking. But, e.g. `pkg-config --exists` requires these to be present, and builds sometimes use this check regardless of build type. This bug is not present in `pkgconf`; it only checks for them when `--static` is also passed. Fix these by adding affected `.pc` references to `libcurl.pc` only when we detected the dependency via `pkg-config`. There are a few side-effects of this solution: - references are never added for dependencies where curl doesn't implement `pkg-config` detection. These are: - autotools: ldap, mbedtls, msh3 - cmake: ldap (pending #15273) - generated `libcurl.pc` depends on the build-time environment. - generated `libcurl.pc` depends on curl build tool (cmake, autotools). - generated `libcurl.pc` depends on curl build implementation details. Make an exception for GNU GSS, where I blindly guess that `gss.pc` is always available, as no issues were reported. Other, not mentioned, dependencies continue to be added regardless of the detection method. Reported-by: Harmen Stoppels, Thomas, Daniel Engberg, Andy Fiddaman Fixes #15469 Fixes #15507 Fixes #15535 Fixes https://github.com/curl/curl/pull/15163#issuecomment-2473358444 Closes #15573
104 lines
3.3 KiB
CMake
104 lines
3.3 KiB
CMake
#***************************************************************************
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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 Rustls library
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#
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# Input variables:
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#
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# - `RUSTLS_INCLUDE_DIR`: The Rustls include directory.
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# - `RUSTLS_LIBRARY`: Path to `rustls` library.
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#
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# Result variables:
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#
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# - `RUSTLS_FOUND`: System has Rustls.
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# - `RUSTLS_INCLUDE_DIRS`: The Rustls include directories.
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# - `RUSTLS_LIBRARIES`: The Rustls library names.
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# - `RUSTLS_LIBRARY_DIRS`: The Rustls library directories.
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# - `RUSTLS_PC_REQUIRES`: The Rustls pkg-config packages.
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# - `RUSTLS_CFLAGS`: Required compiler flags.
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# - `RUSTLS_VERSION`: Version of Rustls.
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if(CURL_USE_PKGCONFIG AND
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NOT DEFINED RUSTLS_INCLUDE_DIR AND
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NOT DEFINED RUSTLS_LIBRARY)
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find_package(PkgConfig QUIET)
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pkg_check_modules(RUSTLS "rustls")
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endif()
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if(RUSTLS_FOUND)
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set(RUSTLS_PC_REQUIRES "rustls")
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string(REPLACE ";" " " RUSTLS_CFLAGS "${RUSTLS_CFLAGS}")
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message(STATUS "Found Rustls (via pkg-config): ${RUSTLS_INCLUDE_DIRS} (found version \"${RUSTLS_VERSION}\")")
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else()
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find_path(RUSTLS_INCLUDE_DIR NAMES "rustls.h")
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find_library(RUSTLS_LIBRARY NAMES "rustls")
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Rustls
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REQUIRED_VARS
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RUSTLS_INCLUDE_DIR
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RUSTLS_LIBRARY
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)
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if(RUSTLS_FOUND)
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set(RUSTLS_INCLUDE_DIRS ${RUSTLS_INCLUDE_DIR})
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set(RUSTLS_LIBRARIES ${RUSTLS_LIBRARY})
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endif()
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mark_as_advanced(RUSTLS_INCLUDE_DIR RUSTLS_LIBRARY)
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endif()
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if(APPLE)
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find_library(SECURITY_FRAMEWORK "Security")
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mark_as_advanced(SECURITY_FRAMEWORK)
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if(NOT SECURITY_FRAMEWORK)
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message(FATAL_ERROR "Security framework not found")
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endif()
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list(APPEND RUSTLS_LIBRARIES "-framework Security")
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find_library(FOUNDATION_FRAMEWORK "Foundation")
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mark_as_advanced(FOUNDATION_FRAMEWORK)
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if(NOT FOUNDATION_FRAMEWORK)
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message(FATAL_ERROR "Foundation framework not found")
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endif()
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list(APPEND RUSTLS_LIBRARIES "-framework Foundation")
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elseif(NOT WIN32)
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find_library(_pthread_library "pthread")
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if(_pthread_library)
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list(APPEND RUSTLS_LIBRARIES "pthread")
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endif()
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mark_as_advanced(_pthread_library)
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find_library(_dl_library "dl")
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if(_dl_library)
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list(APPEND RUSTLS_LIBRARIES "dl")
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endif()
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mark_as_advanced(_dl_library)
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find_library(_math_library "m")
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if(_math_library)
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list(APPEND RUSTLS_LIBRARIES "m")
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endif()
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mark_as_advanced(_math_library)
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endif()
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