GNUInstallDirs: Add special cases for certain prefixes
Teach the module to handle SYSCONFDIR and LOCALSTATEDIR properly if CMAKE_INSTALL_PREFIX is set to `/` or `/usr` -- i.e. as expected by GNU Coding Standard (i.e. set SYSCONFDIR to `/etc` and `LOCALSTATEDIR` to `/var`). Also if CMAKE_INSTALL_PREFIX is set to /opt/pkg, `SYSCONFDIR` must be set to `/etc/opt/pkg` and `LOCALSTATEDIR` to `/var/opt/pkg` according to FHS.
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@ -9,6 +9,9 @@
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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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@ -22,7 +25,8 @@
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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.
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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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@ -60,8 +64,44 @@
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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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@ -279,8 +319,35 @@ foreach(dir
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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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set(CMAKE_INSTALL_FULL_${dir} "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_${dir}}")
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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_${dir}}")
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endif()
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@ -21,8 +21,8 @@ CMAKE_INSTALL_FULL_INFODIR='/opt/Opt/share/info'
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CMAKE_INSTALL_FULL_LIBDIR='/opt/Opt/(lib|lib64)'
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CMAKE_INSTALL_FULL_LIBEXECDIR='/opt/Opt/libexec'
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CMAKE_INSTALL_FULL_LOCALEDIR='/opt/Opt/share/locale'
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CMAKE_INSTALL_FULL_LOCALSTATEDIR='/opt/Opt/var'
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CMAKE_INSTALL_FULL_LOCALSTATEDIR='/var/opt/Opt'
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CMAKE_INSTALL_FULL_MANDIR='/opt/Opt/share/man'
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CMAKE_INSTALL_FULL_SBINDIR='/opt/Opt/sbin'
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CMAKE_INSTALL_FULL_SHAREDSTATEDIR='/opt/Opt/com'
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CMAKE_INSTALL_FULL_SYSCONFDIR='/opt/Opt/etc'$
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CMAKE_INSTALL_FULL_SYSCONFDIR='/etc/opt/Opt'$
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@ -1,28 +1,28 @@
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^CMAKE_INSTALL_BINDIR='bin'
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CMAKE_INSTALL_DATADIR='share'
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CMAKE_INSTALL_DATAROOTDIR='share'
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CMAKE_INSTALL_DOCDIR='share/doc/Root'
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CMAKE_INSTALL_INCLUDEDIR='include'
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CMAKE_INSTALL_INFODIR='share/info'
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CMAKE_INSTALL_LIBDIR='(lib|lib64)'
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CMAKE_INSTALL_LIBEXECDIR='libexec'
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CMAKE_INSTALL_LOCALEDIR='share/locale'
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^CMAKE_INSTALL_BINDIR='usr/bin'
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CMAKE_INSTALL_DATADIR='usr/share'
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CMAKE_INSTALL_DATAROOTDIR='usr/share'
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CMAKE_INSTALL_DOCDIR='usr/share/doc/Root'
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CMAKE_INSTALL_INCLUDEDIR='usr/include'
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CMAKE_INSTALL_INFODIR='usr/share/info'
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CMAKE_INSTALL_LIBDIR='usr/(lib|lib64)'
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CMAKE_INSTALL_LIBEXECDIR='usr/libexec'
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CMAKE_INSTALL_LOCALEDIR='usr/share/locale'
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CMAKE_INSTALL_LOCALSTATEDIR='var'
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CMAKE_INSTALL_MANDIR='share/man'
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CMAKE_INSTALL_SBINDIR='sbin'
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CMAKE_INSTALL_SHAREDSTATEDIR='com'
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CMAKE_INSTALL_MANDIR='usr/share/man'
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CMAKE_INSTALL_SBINDIR='usr/sbin'
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CMAKE_INSTALL_SHAREDSTATEDIR='usr/com'
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CMAKE_INSTALL_SYSCONFDIR='etc'
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CMAKE_INSTALL_FULL_BINDIR='//bin'
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CMAKE_INSTALL_FULL_DATADIR='//share'
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CMAKE_INSTALL_FULL_DATAROOTDIR='//share'
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CMAKE_INSTALL_FULL_DOCDIR='//share/doc/Root'
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CMAKE_INSTALL_FULL_INCLUDEDIR='//include'
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CMAKE_INSTALL_FULL_INFODIR='//share/info'
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CMAKE_INSTALL_FULL_LIBDIR='//(lib|lib64)'
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CMAKE_INSTALL_FULL_LIBEXECDIR='//libexec'
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CMAKE_INSTALL_FULL_LOCALEDIR='//share/locale'
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CMAKE_INSTALL_FULL_LOCALSTATEDIR='//var'
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CMAKE_INSTALL_FULL_MANDIR='//share/man'
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CMAKE_INSTALL_FULL_SBINDIR='//sbin'
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CMAKE_INSTALL_FULL_SHAREDSTATEDIR='//com'
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CMAKE_INSTALL_FULL_SYSCONFDIR='//etc'$
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CMAKE_INSTALL_FULL_BINDIR='/usr/bin'
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CMAKE_INSTALL_FULL_DATADIR='/usr/share'
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CMAKE_INSTALL_FULL_DATAROOTDIR='/usr/share'
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CMAKE_INSTALL_FULL_DOCDIR='/usr/share/doc/Root'
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CMAKE_INSTALL_FULL_INCLUDEDIR='/usr/include'
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CMAKE_INSTALL_FULL_INFODIR='/usr/share/info'
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CMAKE_INSTALL_FULL_LIBDIR='/usr/(lib|lib64)'
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CMAKE_INSTALL_FULL_LIBEXECDIR='/usr/libexec'
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CMAKE_INSTALL_FULL_LOCALEDIR='/usr/share/locale'
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CMAKE_INSTALL_FULL_LOCALSTATEDIR='/var'
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CMAKE_INSTALL_FULL_MANDIR='/usr/share/man'
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CMAKE_INSTALL_FULL_SBINDIR='/usr/sbin'
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CMAKE_INSTALL_FULL_SHAREDSTATEDIR='/usr/com'
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CMAKE_INSTALL_FULL_SYSCONFDIR='/etc'$
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@ -21,8 +21,8 @@ CMAKE_INSTALL_FULL_INFODIR='/usr/share/info'
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CMAKE_INSTALL_FULL_LIBDIR='/usr/(lib|lib64|lib/arch)'
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CMAKE_INSTALL_FULL_LIBEXECDIR='/usr/libexec'
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CMAKE_INSTALL_FULL_LOCALEDIR='/usr/share/locale'
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CMAKE_INSTALL_FULL_LOCALSTATEDIR='/usr/var'
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CMAKE_INSTALL_FULL_LOCALSTATEDIR='/var'
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CMAKE_INSTALL_FULL_MANDIR='/usr/share/man'
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CMAKE_INSTALL_FULL_SBINDIR='/usr/sbin'
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CMAKE_INSTALL_FULL_SHAREDSTATEDIR='/usr/com'
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CMAKE_INSTALL_FULL_SYSCONFDIR='/usr/etc'$
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CMAKE_INSTALL_FULL_SYSCONFDIR='/etc'$
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