math: raise flags in log2l.c on <= 0 arguments, and fix volatile

[musl] / src / stdio / putwchar.c

diff --git a/src/stdio/putwchar.c b/src/stdio/putwchar.c
index 3aacc1c..b249c4a 100644 (file)
--- a/src/stdio/putwchar.c
+++ b/src/stdio/putwchar.c
@@ -1,4 +1,5 @@
 #include "stdio_impl.h"
+#include <wchar.h>
 
 wint_t putwchar(wchar_t c)
 {