gdc not build with --enable-checking=release

Is there a reason why the gdc PKGBUILD doesn't have ```--enable-checking=release``` as a configure option? It might actually be nice for us GDC developers but it does slow the compiler down a lot, this is especially noticeable on ARM. The Archlinux GCC PKGBUILD does have a ```--enable-checking=release``` option.
(BTW: The default for GCC releases is actually ```--enable-checking=release``` so specifying it wouldn't be necessary, but the GCC/GDC PKGBUILDS use snapshots and for snapshots the default is ```--enable-checking=yes```)