1 files changed, 9 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/libpthread/pthread_fputc.c b/mdk-stage1/dietlibc/libpthread/pthread_fputc.c
new file mode 100644
index 000000000..82344b107
--- /dev/null
+++ b/mdk-stage1/dietlibc/libpthread/pthread_fputc.c
@@ -0,0 +1,9 @@
+#include <dietstdio.h>
+
+int fputc(int c, FILE *stream) {
+  int tmp;
+  pthread_mutex_lock(&stream->m);
+  tmp=fputc_unlocked(c,stream);
+  pthread_mutex_unlock(&stream->m);
+  return tmp;
+}