+dnl
+dnl Handle --enable-largefile
+dnl
+AC_ARG_ENABLE([largefile],
+[ --enable-largefile enable Large File System support (your glibc needs to support it)],
+if test "$enableval" = "yes"
+then
+ AC_DEFINE(_FILE_OFFSET_BITS,64)
+fi
+,
+echo "Not enabling Large File System support"
+)
+