| commit | d1722a27f552a22561104210e0afad4577878e53 | |
| author | Alexandre Raymond <cerbere@gmail.com> | |
| Sun, 29 May 2011 22:22:48 +0000 (29 18:22 -0400) | ||
| committer | Andreas Färber <andreas.faerber@web.de> | |
| Tue, 14 Jun 2011 01:08:57 +0000 (14 03:08 +0200) | ||
| tree | 451add40b98cc90768d67736d9589204cc90a893 | treesnapshot (tar.gz zip) |
| parent | dfa5294fce3e035192b283fe0b6fd08be48d78da | commitdiff |
configure: Fix check for fdatasync()
Under Darwin, a symbol exists for the fdatasync() function, so that our
link test succeeds. However _POSIX_SYNCHRONIZED_IO is set to '-1'.
According to POSIX:2008, a value of -1 means the feature is not supported.
A value of 0 means supported at compilation time, and a value greater 0
means supported at both compilation and run time.
Enable fdatasync() only if _POSIX_SYNCHRONIZED_IO is '>0'.
Signed-off-by: Alexandre Raymond <cerbere@gmail.com>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Under Darwin, a symbol exists for the fdatasync() function, so that our
link test succeeds. However _POSIX_SYNCHRONIZED_IO is set to '-1'.
According to POSIX:2008, a value of -1 means the feature is not supported.
A value of 0 means supported at compilation time, and a value greater 0
means supported at both compilation and run time.
Enable fdatasync() only if _POSIX_SYNCHRONIZED_IO is '>0'.
Signed-off-by: Alexandre Raymond <cerbere@gmail.com>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
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