Replying to fperrad:
Some specifics ...
$ grep -n "dir'" lib/Parrot/Config/Generated.pm
127: 'bin_dir' => '/usr/local/bin',
128: 'bindir' => '/usr/local/bin',
130: 'blib_dir' => 'blib/lib',
131: 'build_dir' => '/homedir/work/parrot',
156: 'datadir' => '/usr/local/share',
158: 'doc_dir' => '/usr/local/share/doc',
249: 'i_sysdir' => 'define',
259: 'i_sysndir' => undef,
288: 'icu_dir' => '/usr',
291: 'include_dir' => '/usr/local/include',
292: 'includedir' => '/usr/local/include',
293: 'infodir' => '/usr/local/info',
318: 'lib_dir' => '/usr/local/lib',
319: 'libdir' => '/usr/local/lib',
320: 'libexecdir' => '/usr/local/libexec',
334: 'localstatedir' => '/usr/local/var',
341: 'mandir' => '/usr/local/man',
352: 'oldincludedir' => '/usr/include',
381: 'sbindir' => '/usr/local/sbin',
384: 'sharedstatedir' => '/usr/local/com',
387: 'srcdir' => '/usr/local/src',
390: 'sysconfdir' => '/usr/local/etc',
396: 'versiondir' => '/parrot/1.0.0-devel',
