$OpenBSD$

Index: src/String.cpp
--- src/String.cpp.orig
+++ src/String.cpp
@@ -166,7 +166,7 @@ off_t String::toOffset()
 
     this->removeWhiteSpace();
 
-#if defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
+#if defined(__OpenBSD__) || defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
     sscanf(this->c_str(), "%lld", &t);
 #else
     sscanf(this->c_str(), "%ld", &t);
