12.4.6 `mkinstalldirs' at top level
gettextize has not already done it, you need to add the GNU
`mkinstalldirs' script to your distribution. It is needed because
`mkdir -p' is not portable enough. You find this script in the
Normally, `mkinstalldirs' is put at the top level of a distribution.
But it is also possible to put it in a subdirectory, altogether with other
configuration support files like `install-sh', `ltconfig',
`ltmain.sh' or `missing'. All you need to do, other than
moving the files, is to add the following line to your `configure.in'.