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-rw-r--r--include/unistd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/unistd.h b/include/unistd.h
index 0d20027..fc31064 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -384,6 +384,7 @@ extern int optind, opterr, optopt;
/* ISO/IEC 9945-1: 1996 */
#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE
int fsync(int);
+int fdatasync(int);
/*
* ftruncate() was in the POSIX Realtime Extension (it's used for shared
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