Improve detection of `fdatasync(2)` (re #11137)
authorHerbert Valerio Riedel <hvr@gnu.org>
Wed, 16 Dec 2015 16:40:48 +0000 (17:40 +0100)
committerHerbert Valerio Riedel <hvr@gnu.org>
Wed, 16 Dec 2015 16:40:48 +0000 (17:40 +0100)
commitab79ed763cfbaa1b0d1f39ba5ed1cde7dffd4b87
treec9e146f768c752e555532d6ce73d57f7ac21bcc9
parent4c7da9c557ac5990fb4ccdd6145e0d2487a57219
Improve detection of `fdatasync(2)` (re #11137)

This updates the `unix` submodule to pull in an improved
Autoconf test for `fdatasync(2)` in cases where `<unistd.h>` lacks
a declaration, but linking against `fdatasync` works which led to a
false positive previously.
libraries/unix