[tlbuild] tl25 trial builds

[Karl Berry]

Hi Xiang - thanks for the report.

    2025-02-05T13:38:21.2214239Z ld.lld: error: undefined symbol:
    color_defaults

color_defaults gets defined in hitex-hitables.o. In your build directory
(Work/texk/web2c/) if you run nm hitex-hitables.o, is it there?
I get the result below.

hitables.c is a generated file that we check into the repository so that
it doesn't have to get rebuilt (problematic for cross-compilations).
Pure speculation, but maybe it somehow ended up as an empty or
incomplete file for you? --thanks, karl.

hitex-hitables.o:
0000000000000000 B baseline_defaults
0000000000000600 D color_defaults
00000000000008e0 D content_known
0000000000000000 D content_name
0000000000000100 D definition_name
0000000000000280 D dimen_defaults
00000000000002c0 D glue_defaults
00000000000007e0 D hnode_size
0000000000000220 D int_defaults
00000000000005d0 D label_defaults
00000000000006e0 D max_default
0000000000000660 D max_fixed
0000000000000200 D max_outline
0000000000000760 D max_ref
00000000000005a0 D xdimen_defaults