Fix pipestream includes

diff --git a/src/pipestream.hxx b/src/pipestream.hxx
index 5dbf816..03ee60e 100644 (file)
--- a/src/pipestream.hxx
+++ b/src/pipestream.hxx
@@ -9,8 +9,12 @@
 #ifndef _PIPESTREAM
 #define _PIPESTREAM
 
+#include <stdio.h>
+
 #include <string>
 #include <streambuf>
+#include <istream>
+#include <ostream>
 #include <cstdio>
 
 #include "exception.hxx"