31 lines
1.3 KiB
ReStructuredText
31 lines
1.3 KiB
ReStructuredText
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CPACK_SET_DESTDIR
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-----------------
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Boolean toggle to make CPack use DESTDIR mechanism when packaging.
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DESTDIR means DESTination DIRectory. It is commonly used by makefile
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users in order to install software at non-default location. It is a
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basic relocation mechanism that should not be used on Windows (see
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CMAKE_INSTALL_PREFIX documentation). It is usually invoked like this:
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::
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make DESTDIR=/home/john install
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which will install the concerned software using the installation
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prefix, e.g. "/usr/local" prepended with the DESTDIR value which
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finally gives "/home/john/usr/local". When preparing a package, CPack
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first installs the items to be packaged in a local (to the build tree)
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directory by using the same DESTDIR mechanism. Nevertheless, if
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CPACK_SET_DESTDIR is set then CPack will set DESTDIR before doing the
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local install. The most noticeable difference is that without
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CPACK_SET_DESTDIR, CPack uses CPACK_PACKAGING_INSTALL_PREFIX as a
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prefix whereas with CPACK_SET_DESTDIR set, CPack will use
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CMAKE_INSTALL_PREFIX as a prefix.
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Manually setting CPACK_SET_DESTDIR may help (or simply be necessary)
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if some install rules uses absolute DESTINATION (see CMake INSTALL
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command). However, starting with CPack/CMake 2.8.3 RPM and DEB
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installers tries to handle DESTDIR automatically so that it is seldom
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necessary for the user to set it.
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