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86578eccf2
Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
75 lines
2.5 KiB
CMake
75 lines
2.5 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#.rst:
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# UsePkgConfig
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# ------------
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#
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# Obsolete pkg-config module for CMake, use FindPkgConfig instead.
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#
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#
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#
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# This module defines the following macro:
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#
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# PKGCONFIG(package includedir libdir linkflags cflags)
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#
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# Calling PKGCONFIG will fill the desired information into the 4 given
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# arguments, e.g. PKGCONFIG(libart-2.0 LIBART_INCLUDE_DIR
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# LIBART_LINK_DIR LIBART_LINK_FLAGS LIBART_CFLAGS) if pkg-config was NOT
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# found or the specified software package doesn't exist, the variable
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# will be empty when the function returns, otherwise they will contain
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# the respective information
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find_program(PKGCONFIG_EXECUTABLE NAMES pkg-config )
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macro(PKGCONFIG _package _include_DIR _link_DIR _link_FLAGS _cflags)
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message(STATUS
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"WARNING: you are using the obsolete 'PKGCONFIG' macro, use FindPkgConfig")
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# reset the variables at the beginning
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set(${_include_DIR})
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set(${_link_DIR})
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set(${_link_FLAGS})
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set(${_cflags})
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# if pkg-config has been found
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if(PKGCONFIG_EXECUTABLE)
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exec_program(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --exists RETURN_VALUE _return_VALUE OUTPUT_VARIABLE _pkgconfigDevNull )
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# and if the package of interest also exists for pkg-config, then get the information
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if(NOT _return_VALUE)
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exec_program(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=includedir
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OUTPUT_VARIABLE ${_include_DIR} )
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string(REGEX REPLACE "[\r\n]" " " ${_include_DIR} "${${_include_DIR}}")
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exec_program(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=libdir
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OUTPUT_VARIABLE ${_link_DIR} )
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string(REGEX REPLACE "[\r\n]" " " ${_link_DIR} "${${_link_DIR}}")
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exec_program(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --libs
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OUTPUT_VARIABLE ${_link_FLAGS} )
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string(REGEX REPLACE "[\r\n]" " " ${_link_FLAGS} "${${_link_FLAGS}}")
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exec_program(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --cflags
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OUTPUT_VARIABLE ${_cflags} )
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string(REGEX REPLACE "[\r\n]" " " ${_cflags} "${${_cflags}}")
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else()
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message(STATUS "PKGCONFIG() indicates that ${_package} is not installed (install the package which contains ${_package}.pc if you want to support this feature)")
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endif()
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# if pkg-config has NOT been found, INFORM the user
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else()
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message(STATUS "WARNING: PKGCONFIG() indicates that the tool pkg-config has not been found on your system. You should install it.")
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endif()
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endmacro()
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mark_as_advanced(PKGCONFIG_EXECUTABLE)
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