Downgrade messages about nonconformant code from errors to warnings. By
default, g++ effectively sets @samp{-pedantic-errors} without
@samp{-pedantic}; this option reverses that. This behavior and this
-option are superceded by @samp{-pedantic}, which works as it does for GNU C.
+option are superseded by @samp{-pedantic}, which works as it does for GNU C.
@item -frepo
Enable automatic template instantiation. This option also implies