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-rw-r--r--sysdeps/pthread/flockfile.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/pthread/flockfile.c b/sysdeps/pthread/flockfile.c
index 7fe8e99..a8e6c28 100644
--- a/sysdeps/pthread/flockfile.c
+++ b/sysdeps/pthread/flockfile.c
@@ -25,6 +25,7 @@
void
__flockfile (FILE *stream)
{
+ stream->_flags2 |= _IO_FLAGS2_NEED_LOCK;
_IO_lock_lock (*stream->_lock);
}
strong_alias (__flockfile, _IO_flockfile)