patch 8.1.0915: fsync() may not work properly on Macv8.1.0915

Problem:    fsync() may not work properly on Mac.
Solution:   Use fcntl() with F_FULLFSYNC. (suggested by Justin M. Keyes)

1 files changed, 1 insertions, 0 deletions

diff --git a/src/proto/fileio.pro b/src/proto/fileio.pro
index 21ac55c9d1..e99cbc8bfd 100644
--- a/src/proto/fileio.pro
+++ b/src/proto/fileio.pro
@@ -7,6 +7,7 @@ void set_file_options(int set_options, exarg_T *eap);
 void set_forced_fenc(exarg_T *eap);
 int check_file_readonly(char_u *fname, int perm);
 int buf_write(buf_T *buf, char_u *fname, char_u *sfname, linenr_T start, linenr_T end, exarg_T *eap, int append, int forceit, int reset_changed, int filtering);
+int vim_fsync(int fd);
 void msg_add_fname(buf_T *buf, char_u *fname);
 void msg_add_lines(int insert_space, long lnum, off_T nchars);
 char_u *shorten_fname1(char_u *full_path);