[PATCH] cstdio: Add undef for four functions

When compiling with uClibc-ng, these functions get defined as macros and
become unavailable for std.

Fixes programs that use the std versions of these functions.

This matches libstdcpp behavior.

Signed-off-by: Rosen Penev <[email protected]>
---
 include/cstdio | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/cstdio b/include/cstdio
index f959ff5..0a42458 100644
--- a/include/cstdio
+++ b/include/cstdio
@@ -21,6 +21,15 @@
 #ifndef __HEADER_CSTDIO
 #define __HEADER_CSTDIO 1
 
+#undef clearerr
+#undef feof
+#undef ferror
+#undef fgetc
+#undef fputc
+#undef getc
+#undef getchar
+#undef putc
+#undef putchar
 
 namespace std{
 	using ::FILE;
-- 
2.17.1