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355 lines
13 KiB
355 lines
13 KiB
#.rst:
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# GNUInstallDirs
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# --------------
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#
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# Define GNU standard installation directories
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#
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# Provides install directory variables as defined by the
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# `GNU Coding Standards`_.
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#
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# .. _`GNU Coding Standards`: https://www.gnu.org/prep/standards/html_node/Directory-Variables.html
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#
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# Result Variables
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# ^^^^^^^^^^^^^^^^
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#
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# Inclusion of this module defines the following variables:
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#
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# ``CMAKE_INSTALL_<dir>``
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#
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# Destination for files of a given type. This value may be passed to
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# the ``DESTINATION`` options of :command:`install` commands for the
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# corresponding file type.
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#
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# ``CMAKE_INSTALL_FULL_<dir>``
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#
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# The absolute path generated from the corresponding ``CMAKE_INSTALL_<dir>``
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# value. If the value is not already an absolute path, an absolute path
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# is constructed typically by prepending the value of the
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# :variable:`CMAKE_INSTALL_PREFIX` variable. However, there are some
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# `special cases`_ as documented below.
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#
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# where ``<dir>`` is one of:
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#
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# ``BINDIR``
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# user executables (``bin``)
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# ``SBINDIR``
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# system admin executables (``sbin``)
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# ``LIBEXECDIR``
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# program executables (``libexec``)
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# ``SYSCONFDIR``
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# read-only single-machine data (``etc``)
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# ``SHAREDSTATEDIR``
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# modifiable architecture-independent data (``com``)
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# ``LOCALSTATEDIR``
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# modifiable single-machine data (``var``)
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# ``LIBDIR``
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# object code libraries (``lib`` or ``lib64``
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# or ``lib/<multiarch-tuple>`` on Debian)
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# ``INCLUDEDIR``
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# C header files (``include``)
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# ``OLDINCLUDEDIR``
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# C header files for non-gcc (``/usr/include``)
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# ``DATAROOTDIR``
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# read-only architecture-independent data root (``share``)
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# ``DATADIR``
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# read-only architecture-independent data (``DATAROOTDIR``)
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# ``INFODIR``
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# info documentation (``DATAROOTDIR/info``)
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# ``LOCALEDIR``
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# locale-dependent data (``DATAROOTDIR/locale``)
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# ``MANDIR``
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# man documentation (``DATAROOTDIR/man``)
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# ``DOCDIR``
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# documentation root (``DATAROOTDIR/doc/PROJECT_NAME``)
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#
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# If the includer does not define a value the above-shown default will be
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# used and the value will appear in the cache for editing by the user.
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#
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# Special Cases
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# ^^^^^^^^^^^^^
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#
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# The following values of :variable:`CMAKE_INSTALL_PREFIX` are special:
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#
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# ``/``
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#
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# For ``<dir>`` other than the ``SYSCONFDIR`` and ``LOCALSTATEDIR``,
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# the value of ``CMAKE_INSTALL_<dir>`` is prefixed with ``usr/`` if
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# it is not user-specified as an absolute path. For example, the
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# ``INCLUDEDIR`` value ``include`` becomes ``usr/include``.
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# This is required by the `GNU Coding Standards`_, which state:
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#
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# When building the complete GNU system, the prefix will be empty
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# and ``/usr`` will be a symbolic link to ``/``.
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#
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# ``/usr``
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#
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# For ``<dir>`` equal to ``SYSCONFDIR`` or ``LOCALSTATEDIR``, the
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# ``CMAKE_INSTALL_FULL_<dir>`` is computed by prepending just ``/``
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# to the value of ``CMAKE_INSTALL_<dir>`` if it is not user-specified
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# as an absolute path. For example, the ``SYSCONFDIR`` value ``etc``
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# becomes ``/etc``. This is required by the `GNU Coding Standards`_.
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#
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# ``/opt/...``
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#
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# For ``<dir>`` equal to ``SYSCONFDIR`` or ``LOCALSTATEDIR``, the
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# ``CMAKE_INSTALL_FULL_<dir>`` is computed by *appending* the prefix
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# to the value of ``CMAKE_INSTALL_<dir>`` if it is not user-specified
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# as an absolute path. For example, the ``SYSCONFDIR`` value ``etc``
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# becomes ``/etc/opt/...``. This is defined by the
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# `Filesystem Hierarchy Standard`_.
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#
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# .. _`Filesystem Hierarchy Standard`: https://refspecs.linuxfoundation.org/FHS_3.0/fhs/index.html
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#=============================================================================
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# Copyright 2015 Alex Turbov <i.zaufi@gmail.com>
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# Copyright 2011 Nikita Krupen'ko <krnekit@gmail.com>
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# Copyright 2011 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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# Installation directories
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#
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if(NOT DEFINED CMAKE_INSTALL_BINDIR)
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set(CMAKE_INSTALL_BINDIR "bin" CACHE PATH "user executables (bin)")
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endif()
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if(NOT DEFINED CMAKE_INSTALL_SBINDIR)
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set(CMAKE_INSTALL_SBINDIR "sbin" CACHE PATH "system admin executables (sbin)")
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endif()
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if(NOT DEFINED CMAKE_INSTALL_LIBEXECDIR)
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set(CMAKE_INSTALL_LIBEXECDIR "libexec" CACHE PATH "program executables (libexec)")
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endif()
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if(NOT DEFINED CMAKE_INSTALL_SYSCONFDIR)
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set(CMAKE_INSTALL_SYSCONFDIR "etc" CACHE PATH "read-only single-machine data (etc)")
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endif()
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if(NOT DEFINED CMAKE_INSTALL_SHAREDSTATEDIR)
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set(CMAKE_INSTALL_SHAREDSTATEDIR "com" CACHE PATH "modifiable architecture-independent data (com)")
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endif()
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if(NOT DEFINED CMAKE_INSTALL_LOCALSTATEDIR)
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set(CMAKE_INSTALL_LOCALSTATEDIR "var" CACHE PATH "modifiable single-machine data (var)")
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endif()
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# We check if the variable was manually set and not cached, in order to
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# allow projects to set the values as normal variables before including
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# GNUInstallDirs to avoid having the entries cached or user-editable. It
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# replaces the "if(NOT DEFINED CMAKE_INSTALL_XXX)" checks in all the
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# other cases.
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# If CMAKE_INSTALL_LIBDIR is defined, if _libdir_set is false, then the
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# variable is a normal one, otherwise it is a cache one.
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get_property(_libdir_set CACHE CMAKE_INSTALL_LIBDIR PROPERTY TYPE SET)
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if(NOT DEFINED CMAKE_INSTALL_LIBDIR OR (_libdir_set
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AND DEFINED _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX
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AND NOT "${_GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX}" STREQUAL "${CMAKE_INSTALL_PREFIX}"))
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# If CMAKE_INSTALL_LIBDIR is not defined, it is always executed.
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# Otherwise:
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# * if _libdir_set is false it is not executed (meaning that it is
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# not a cache variable)
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# * if _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX is not defined it is
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# not executed
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# * if _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX and
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# CMAKE_INSTALL_PREFIX are the same string it is not executed.
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# _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX is updated after the
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# execution, of this part of code, therefore at the next inclusion
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# of the file, CMAKE_INSTALL_LIBDIR is defined, and the 2 strings
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# are equal, meaning that the if is not executed the code the
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# second time.
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set(_LIBDIR_DEFAULT "lib")
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# Override this default 'lib' with 'lib64' iff:
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# - we are on Linux system but NOT cross-compiling
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# - we are NOT on debian
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# - we are on a 64 bits system
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# reason is: amd64 ABI: http://www.x86-64.org/documentation/abi.pdf
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# For Debian with multiarch, use 'lib/${CMAKE_LIBRARY_ARCHITECTURE}' if
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# CMAKE_LIBRARY_ARCHITECTURE is set (which contains e.g. "i386-linux-gnu"
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# and CMAKE_INSTALL_PREFIX is "/usr"
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# See http://wiki.debian.org/Multiarch
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if(DEFINED _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX)
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set(__LAST_LIBDIR_DEFAULT "lib")
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# __LAST_LIBDIR_DEFAULT is the default value that we compute from
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# _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX, not a cache entry for
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# the value that was last used as the default.
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# This value is used to figure out whether the user changed the
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# CMAKE_INSTALL_LIBDIR value manually, or if the value was the
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# default one. When CMAKE_INSTALL_PREFIX changes, the value is
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# updated to the new default, unless the user explicitly changed it.
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endif()
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if(CMAKE_SYSTEM_NAME MATCHES "^(Linux|kFreeBSD|GNU)$"
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AND NOT CMAKE_CROSSCOMPILING)
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if (EXISTS "/etc/debian_version") # is this a debian system ?
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if(CMAKE_LIBRARY_ARCHITECTURE)
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if("${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$")
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set(_LIBDIR_DEFAULT "lib/${CMAKE_LIBRARY_ARCHITECTURE}")
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endif()
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if(DEFINED _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX
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AND "${_GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$")
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set(__LAST_LIBDIR_DEFAULT "lib/${CMAKE_LIBRARY_ARCHITECTURE}")
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endif()
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endif()
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else() # not debian, rely on CMAKE_SIZEOF_VOID_P:
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if(NOT DEFINED CMAKE_SIZEOF_VOID_P)
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message(AUTHOR_WARNING
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"Unable to determine default CMAKE_INSTALL_LIBDIR directory because no target architecture is known. "
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"Please enable at least one language before including GNUInstallDirs.")
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else()
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if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
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set(_LIBDIR_DEFAULT "lib64")
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if(DEFINED _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX)
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set(__LAST_LIBDIR_DEFAULT "lib64")
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endif()
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endif()
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endif()
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endif()
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endif()
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if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
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set(CMAKE_INSTALL_LIBDIR "${_LIBDIR_DEFAULT}" CACHE PATH "object code libraries (${_LIBDIR_DEFAULT})")
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elseif(DEFINED __LAST_LIBDIR_DEFAULT
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AND "${__LAST_LIBDIR_DEFAULT}" STREQUAL "${CMAKE_INSTALL_LIBDIR}")
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set_property(CACHE CMAKE_INSTALL_LIBDIR PROPERTY VALUE "${_LIBDIR_DEFAULT}")
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endif()
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endif()
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# Save for next run
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set(_GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}" CACHE INTERNAL "CMAKE_INSTALL_PREFIX during last run")
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unset(_libdir_set)
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unset(__LAST_LIBDIR_DEFAULT)
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if(NOT DEFINED CMAKE_INSTALL_INCLUDEDIR)
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set(CMAKE_INSTALL_INCLUDEDIR "include" CACHE PATH "C header files (include)")
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endif()
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if(NOT DEFINED CMAKE_INSTALL_OLDINCLUDEDIR)
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set(CMAKE_INSTALL_OLDINCLUDEDIR "/usr/include" CACHE PATH "C header files for non-gcc (/usr/include)")
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endif()
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if(NOT DEFINED CMAKE_INSTALL_DATAROOTDIR)
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set(CMAKE_INSTALL_DATAROOTDIR "share" CACHE PATH "read-only architecture-independent data root (share)")
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endif()
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#-----------------------------------------------------------------------------
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# Values whose defaults are relative to DATAROOTDIR. Store empty values in
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# the cache and store the defaults in local variables if the cache values are
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# not set explicitly. This auto-updates the defaults as DATAROOTDIR changes.
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if(NOT CMAKE_INSTALL_DATADIR)
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set(CMAKE_INSTALL_DATADIR "" CACHE PATH "read-only architecture-independent data (DATAROOTDIR)")
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set(CMAKE_INSTALL_DATADIR "${CMAKE_INSTALL_DATAROOTDIR}")
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endif()
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if(CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
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if(NOT CMAKE_INSTALL_INFODIR)
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set(CMAKE_INSTALL_INFODIR "" CACHE PATH "info documentation (info)")
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set(CMAKE_INSTALL_INFODIR "info")
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endif()
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if(NOT CMAKE_INSTALL_MANDIR)
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set(CMAKE_INSTALL_MANDIR "" CACHE PATH "man documentation (man)")
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set(CMAKE_INSTALL_MANDIR "man")
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endif()
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else()
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if(NOT CMAKE_INSTALL_INFODIR)
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set(CMAKE_INSTALL_INFODIR "" CACHE PATH "info documentation (DATAROOTDIR/info)")
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set(CMAKE_INSTALL_INFODIR "${CMAKE_INSTALL_DATAROOTDIR}/info")
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endif()
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if(NOT CMAKE_INSTALL_MANDIR)
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set(CMAKE_INSTALL_MANDIR "" CACHE PATH "man documentation (DATAROOTDIR/man)")
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set(CMAKE_INSTALL_MANDIR "${CMAKE_INSTALL_DATAROOTDIR}/man")
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endif()
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endif()
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if(NOT CMAKE_INSTALL_LOCALEDIR)
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set(CMAKE_INSTALL_LOCALEDIR "" CACHE PATH "locale-dependent data (DATAROOTDIR/locale)")
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set(CMAKE_INSTALL_LOCALEDIR "${CMAKE_INSTALL_DATAROOTDIR}/locale")
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endif()
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if(NOT CMAKE_INSTALL_DOCDIR)
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set(CMAKE_INSTALL_DOCDIR "" CACHE PATH "documentation root (DATAROOTDIR/doc/PROJECT_NAME)")
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set(CMAKE_INSTALL_DOCDIR "${CMAKE_INSTALL_DATAROOTDIR}/doc/${PROJECT_NAME}")
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endif()
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#-----------------------------------------------------------------------------
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mark_as_advanced(
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CMAKE_INSTALL_BINDIR
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CMAKE_INSTALL_SBINDIR
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CMAKE_INSTALL_LIBEXECDIR
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CMAKE_INSTALL_SYSCONFDIR
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CMAKE_INSTALL_SHAREDSTATEDIR
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CMAKE_INSTALL_LOCALSTATEDIR
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CMAKE_INSTALL_LIBDIR
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CMAKE_INSTALL_INCLUDEDIR
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CMAKE_INSTALL_OLDINCLUDEDIR
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CMAKE_INSTALL_DATAROOTDIR
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CMAKE_INSTALL_DATADIR
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CMAKE_INSTALL_INFODIR
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CMAKE_INSTALL_LOCALEDIR
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CMAKE_INSTALL_MANDIR
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CMAKE_INSTALL_DOCDIR
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)
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# Result directories
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#
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foreach(dir
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BINDIR
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SBINDIR
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LIBEXECDIR
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SYSCONFDIR
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SHAREDSTATEDIR
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LOCALSTATEDIR
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LIBDIR
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INCLUDEDIR
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OLDINCLUDEDIR
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DATAROOTDIR
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DATADIR
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INFODIR
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LOCALEDIR
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MANDIR
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DOCDIR
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)
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if(NOT IS_ABSOLUTE "${CMAKE_INSTALL_${dir}}")
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# Handle special cases:
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# - CMAKE_INSTALL_PREFIX == /
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# - CMAKE_INSTALL_PREFIX == /usr
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# - CMAKE_INSTALL_PREFIX == /opt/...
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if("${CMAKE_INSTALL_PREFIX}" STREQUAL "/")
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if("${dir}" STREQUAL "SYSCONFDIR" OR "${dir}" STREQUAL "LOCALSTATEDIR")
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set(CMAKE_INSTALL_FULL_${dir} "/${CMAKE_INSTALL_${dir}}")
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else()
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if (NOT "${CMAKE_INSTALL_${dir}}" MATCHES "^usr/")
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set(CMAKE_INSTALL_${dir} "usr/${CMAKE_INSTALL_${dir}}")
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endif()
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set(CMAKE_INSTALL_FULL_${dir} "/${CMAKE_INSTALL_${dir}}")
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endif()
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elseif("${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$")
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if("${dir}" STREQUAL "SYSCONFDIR" OR "${dir}" STREQUAL "LOCALSTATEDIR")
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set(CMAKE_INSTALL_FULL_${dir} "/${CMAKE_INSTALL_${dir}}")
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else()
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set(CMAKE_INSTALL_FULL_${dir} "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_${dir}}")
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endif()
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elseif("${CMAKE_INSTALL_PREFIX}" MATCHES "^/opt/.*")
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if("${dir}" STREQUAL "SYSCONFDIR" OR "${dir}" STREQUAL "LOCALSTATEDIR")
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set(CMAKE_INSTALL_FULL_${dir} "/${CMAKE_INSTALL_${dir}}${CMAKE_INSTALL_PREFIX}")
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else()
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set(CMAKE_INSTALL_FULL_${dir} "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_${dir}}")
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endif()
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else()
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set(CMAKE_INSTALL_FULL_${dir} "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_${dir}}")
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endif()
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else()
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set(CMAKE_INSTALL_FULL_${dir} "${CMAKE_INSTALL_${dir}}")
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endif()
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endforeach()
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