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2.2.3 Standard Directory Variables
The GNU Coding Standards also specify a hierarchy of variables to denote installation directories. Some of these are:
| Directory variable | Default value |
|---|---|
prefix | /usr/local |
exec_prefix | ${prefix} |
bindir | ${exec_prefix}/bin |
libdir | ${exec_prefix}/lib |
| … | |
includedir | ${prefix}/include |
datarootdir | ${prefix}/share |
datadir | ${datarootdir} |
mandir | ${datarootdir}/man |
infodir | ${datarootdir}/info |
docdir | ${datarootdir}/doc/${PACKAGE} |
| … |
Each of these directories has a role which is often obvious from its
name. In a package, any installable file will be installed in one of
these directories. For instance in amhello-1.0, the program
‘hello’ is to be installed in bindir, the directory for
binaries. The default value for this directory is
‘/usr/local/bin’, but the user can supply a different value when
calling configure. Also the file ‘README’ will be
installed into docdir, which defaults to
‘/usr/local/share/doc/amhello’.
As a user, if you wish to install a package on your own account, you could proceed as follows:
~/amhello-1.0 % ./configure --prefix ~/usr … ~/amhello-1.0 % make … ~/amhello-1.0 % make install …
This would install ‘~/usr/bin/hello’ and ‘~/usr/share/doc/amhello/README’.
The list of all such directory options is shown by
./configure --help.
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