1diff --git a/libfcgi/fcgio.cpp b/libfcgi/fcgio.cpp 2index 95e28ca..a7eda0e 100644 3--- a/libfcgi/fcgio.cpp 4+++ b/libfcgi/fcgio.cpp 5@@ -23,6 +23,7 @@ 6 #endif 7 8 #include <limits.h> 9+#include <cstdio> 10 #include "fcgio.h" 11 12 using std::streambuf;