https://gitlab.synchro.net/main/sbbs/-/commit/2660833170ac70b2a76c0b42
Added Files:
src/sbbs3/Directory.Build.targets
Log Message:
sbbs3: disable PDB generation for Release|Win32 builds

Adds src/sbbs3/Directory.Build.targets, auto-imported by MSBuild after
every sbbs3 .vcxproj's body, which overrides DebugInformationFormat to
None in ClCompile and GenerateDebugInformation to false in Link for the Release|Win32 configuration across all 33 projects (including scfg/scfg.vcxproj).

The motivation is sporadic, non-deterministic "internal compiler error" failures observed on the Windows GitLab runner -- random source file
and line each run, persisting after AV exemption and single-instance
runner limiting. The root cause is mspdbsrv.exe (the shared PDB writer
spawned by cl.exe under /Zi) wedging or thrashing across the seven
sequential builds the windows-x86 [sbbs] job performs in one shot;
mspdbsrv outlives a single cl invocation and a single MSBuild process,
so per-runner throttling does not help. Eliminating the compiler /Zi
and linker /DEBUG settings removes mspdbsrv from the Release pipeline
entirely.

Verified by building ans2asc.vcxproj Release: produces a working .exe
(~42% smaller, no debug sections), no .pdb in either the output dir or
the intermediate dir, and MSBuild evaluates _DebugSymbolsProduced as
false. Debug builds are unaffected.

The CI artifact list in .gitlab-ci.yml never shipped .pdb files anyway.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

https://gitlab.synchro.net/main/sbbs/-/commit/311ed074172dc2231729938f
Modified Files:
src/sbbs3/Directory.Build.targets
Log Message:
sbbs3: also disable WPO/LTCG for Release|Win32 builds

Extends the Release|Win32 toolchain pruning in 266083317. That commit suppressed PDBs to take mspdbsrv.exe out of the picture; CI job 1507619
then surfaced the next layer — a `link.exe` LTCG-pass ICE at
`ars.c(35)` (compiler file `p2/main.cpp` line 258), still random across
runs. Same shape of failure (shared toolchain subprocess, random TU), different subsystem: the LTCG backend (c2.dll UTC) re-codegens objects
compiled with `/GL` at link time.

Adds `WholeProgramOptimization=false` (drops `/GL`) and `LinkTimeCodeGeneration=Default` (drops `/LTCG:incremental`) for
Release|Win32 across every sbbs3 vcxproj, eliminating LTCG as a
shared CI dependency. WPO inlining is not load-bearing for these
I/O-bound BBS binaries.