aboutsummaryrefslogtreecommitdiff
path: root/libio
diff options
context:
space:
mode:
Diffstat (limited to 'libio')
-rw-r--r--libio/libio.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/libio/libio.h b/libio/libio.h
index e662f48918..770cb6d2b3 100644
--- a/libio/libio.h
+++ b/libio/libio.h
@@ -442,6 +442,10 @@ extern int _IO_ftrylockfile (_IO_FILE *) __THROW;
#ifdef _IO_MTSAFE_IO
# define _IO_peekc(_fp) _IO_peekc_locked (_fp)
+# define _IO_flockfile(_fp) \
+ if (((_fp)->_mode & _IO_USER_LOCK) == 0) _IO_flockfile (_fp)
+# define _IO_funlockfile(_fp) \
+ if (((_fp)->_mode & _IO_USER_LOCK) == 0) _IO_funlockfile (_fp)
#else
# define _IO_peekc(_fp) _IO_peekc_unlocked (_fp)
# define _IO_flockfile(_fp) /**/