Bulk building with gcc 13

[Lloyd Parkes <lloyd%must-have-coffee.gen.nz@localhost>]

Kia ora,
How do I use pbulk to bulk build with GCC 13 on NetBSD 11.99.4?

On a traditional build I just put the following in mk.conf, "make 
package-install" lang/gcc13 into an empty /usr/pkg and then add GCC 13 
to my path.
    PREFER_PKGSRC=          gcc
    PKGSRC_GCC_VERSION=     13
    PKGSRC_GXX_VERSION=     13

I have the same mk.conf in my bulk build sandbox.

I tried simply adding lang/gcc13 at the start of my limited_list file, 
but that doesn't seem to have done anything at all.

Does anyone have any suggestions while I wait for pbulk.sh to setup a 
new sandbox?

Ngā mihi,
Lloyd