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-rw-r--r--newlib/libc/include/sys/unistd.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/newlib/libc/include/sys/unistd.h b/newlib/libc/include/sys/unistd.h
index 387e2ef17..6a49d5d47 100644
--- a/newlib/libc/include/sys/unistd.h
+++ b/newlib/libc/include/sys/unistd.h
@@ -53,7 +53,9 @@ int _EXFUN(fchown, (int __fildes, uid_t __owner, gid_t __group ));
pid_t _EXFUN(fork, (void ));
long _EXFUN(fpathconf, (int __fd, int __name ));
int _EXFUN(fsync, (int __fd));
+#ifndef __CYGWIN__
int _EXFUN(fdatasync, (int __fd));
+#endif
char _EXFUN(*getcwd, (char *__buf, size_t __size ));
#if defined(__CYGWIN__)
int _EXFUN(getdomainname ,(char *__name, size_t __len));