1 files changed, 5 insertions, 1 deletions
diff --git a/newlib/libc/stdio/fgetc.c b/newlib/libc/stdio/fgetc.c
index 3d3d2c4ed..1160b67a7 100644
--- a/newlib/libc/stdio/fgetc.c
+++ b/newlib/libc/stdio/fgetc.c
@@ -42,5 +42,9 @@ int
 _DEFUN (fgetc, (fp),
 	FILE * fp)
 {
-  return __sgetc (fp);
+  int result;
+  _flockfile(fp);
+  result = __sgetc (fp);
+  _funlockfile(fp);
+  return result;
 }