[tlbuild] TL25 rebuild please

[Robert Alessi]

Hi Max,

On Wed, Mar 05, 2025 at 01:00:57AM -0700, Max Chernoff wrote:
> folder, you can build a debug version with:
> 
>     $ export CFLAGS='-ggdb3 -O0' CXXFLAGS='-ggdb3 -O0' LDFLAGS='-ggdb3'
>     $ sed -i '/-O3/d' CMakeLists.txt
>     $ sed -i 's/"-s"/""/' CMakeLists.txt
>     $ sed -i '/STRIP/d' cmake/luametatex.cmake
>     $ mkdir debug/ && cd debug/
>     $ cmake -DCMAKE_BUILD_TYPE=Debug -DLMT_PERMIT_LUA_LIBRARIES=yes ..

At this point I got this CMake warning:

CMake Warning:
  Manually-specified variables were not used by the project:

    LMT_PERMIT_LUA_LIBRARIES

>     $ cmake --build . --parallel 16

Then the build process succeeded.

> 
> The command to manually build a format is
> 
>     $ luametatex --ini --lua=$(kpsewhich luat-cod.lmt) $(kpsewhich cont-en.mkxl)
> 
> Since you compiled with clang, I guess you'll probably use lldb, but
> with GDB and an intentionally-broken binary, this is what I get:
> 
>     $ gdb --args luametatex --ini --lua=$(kpsewhich luat-cod.lmt) $(kpsewhich cont-en.mkxl)

Then I copied luametatex to my TL bin dir and I ran:

$ lldb --arch x86_64 -- luametatex --ini --lua=$(kpsewhich luat-cod.lmt) $(kpsewhich cont-en.mkxl)

Here is what I got:

(lldb) target create --arch=x86_64 "luametatex"
Current executable set to '/usr/local/texlive/2025/bin/custom/luametatex' (x86_64).
(lldb) settings set -- target.run-args  "--ini" "--lua=/usr/local/texlive/2025/texmf-dist/tex/context/base/mkxl/luat-cod.lmt" "/usr/local/texlive/2025/texmf-dist/tex/context/base/mkxl/cont-en.mkxl"
(lldb) r
Process 28175 launched: '/usr/local/texlive/2025/bin/custom/luametatex' (x86_64)
This is LuaMetaTeX, Version 2.11.07 initex
(/usr/local/texlive/2025/texmf-dist/tex/context/base/mkxl/cont-en.mkxl(context.mkxl(syst-ini.mkxl)(norm-ctx.mkxl)(syst-pln.mkxl)(luat-cod.mkxl<+ /usr/local/texlive/2025/texmf-dist/tex/context/base/mkxl
[...]
open source     > level 1, order 35, name 'core-ini.mkxl'
loading         > ConTeXt Core Macros / Additional Initialization
close source    > level 1, order 35, name 'core-ini.mkxl'
open source     > level 1, order 36, name 'core-env.mkxl'
loading         > ConTeXt Core Macros / Environments
Process 28175 stopped
* thread #1, stop reason = signal SIGSEGV
    frame #0: 0x000009667aa8c9d8 luametatex`texlib_aux_checked_register [inlined] texlib_aux_valid_register_index(L=0x000009691de9f708, slot=1, cmd=<unavailable>, base=<unavailable>, max=65535, constant_cmd=<unavailable>) at lmttexlib.c:1277:74
   1274     }
   1275     if (index >= 0 && index <= max) {
   1276         return index;
-> 1277     } else if (index < (eqtb_size + lmt_hash_state.hash_data.ptr + 1) && eq_type(index) == constant_cmd) {
                                                                                 ^
   1278         return index;
   1279     } else {
   1280         return -1;
(lldb) q
Quitting LLDB will kill one or more processes. Do you really want to proceed: [Y/n] Y

Thanks again,

-- Robert

> 
> Thanks,
> -- Max