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--- a/src/utils/base64.cpp
+++ b/src/utils/base64.cpp
@@ -270,6 +270,7 @@
 #ifdef TEST_BASE64
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #include "readfile.h"
 
@@ -357,7 +358,7 @@
 	    fprintf(stderr, "Decoding failed\n");
 	    exit(1);
 	}
-	write(1, odata.c_str(), 
+	::write(1, odata.c_str(), 
 	      odata.size() * sizeof(string::value_type));
 	exit(0);
     }