On Wed, 10 Jul 2019, Sébastien Hinderer wrote:
Dear all,I'd need to compute the absolute path of srcdir in a portable way (it's okay if it includes symlinks). Currently I use abssrcdir=$(cd "${srcdir}"; echo $PWD) which seems to work fine. Is that considered portable enough?
It appears that $PWD is a shell extension, so I don't think so. Even the shell syntax being used to execute the external command is not very portable. In addition to that, if the cd "${srcdir}" fails, it would then capture the wrong directory.
This syntax is proven to be portable and reliable: abssrcdir="`cd $srcdir && pwd`" Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt _______________________________________________ Autoconf mailing list Autoconf@gnu.org https://lists.gnu.org/mailman/listinfo/autoconf
