[GL-D1] Drop the OpenGL::GL link, FindOpenGL, headless/OSMesa and Tracy-GL #76

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opened 2026-09-27 05:33:52 +00:00 by sky_line · 4 comments
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Scope: the CMake list in §3 Q6 items 1–6

Prereq: none (R5 shows the link is already a no-op)

Acceptance: Clean configure on a machine without mesa/libGL dev packages. readelf -d is unchanged. Plugins load.

Risk: low

Shared acceptance baseline: links; logs in under VK and renders prims/mesh/rigged/terrain/water/sky/particles; click-select object/avatar/attachment; region crossing + teleport; no GLSL Compilation Error|SIGSEGV in the log.

Source: research/gl_removal_map.md

**Scope:** the CMake list in §3 Q6 items 1–6 **Prereq:** none (R5 shows the link is already a no-op) **Acceptance:** Clean configure on a machine **without** mesa/libGL dev packages. `readelf -d` is unchanged. Plugins load. **Risk:** low **Shared acceptance baseline:** links; logs in under VK and renders prims/mesh/rigged/terrain/water/sky/particles; click-select object/avatar/attachment; region crossing + teleport; no `GLSL Compilation Error|SIGSEGV` in the log. Source: research/gl_removal_map.md
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Status check (verification sweep): partly done. OSMesa/headless is gone (0 refs), and Tracy GPU zones are forced OFF with a warning (indra/cmake/Tracy.cmake:39). Remaining: indra/cmake/OpenGL.cmake still does include(FindOpenGL), indra/cmake/PluginAPI.cmake:18 still links OpenGL::GL, and llprofiler.h keeps the LL_PROFILER_ENABLE_TRACY_OPENGL block.

Status check (verification sweep): partly done. OSMesa/headless is gone (0 refs), and Tracy GPU zones are forced OFF with a warning (indra/cmake/Tracy.cmake:39). Remaining: indra/cmake/OpenGL.cmake still does include(FindOpenGL), indra/cmake/PluginAPI.cmake:18 still links OpenGL::GL, and llprofiler.h keeps the LL_PROFILER_ENABLE_TRACY_OPENGL block.
sky_line added this to the Slipstream project 2026-10-06 15:04:15 +00:00
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Verified against forgejo/main: PARTIAL, leaving open. Done: cmake/OpenGL.cmake and FindOpenGL include, OpenGL::GL link, OSMesa path, GLEXT.cmake, and the llrenderheadless target are gone; no Tracy-GL define in cmake. Remaining: (1) Windows still links opengl32 (indra/cmake/UI.cmake:34); (2) llwindowheadless is still built and used (llwindow/CMakeLists.txt:20,31; llwindow.cpp:28,383), listed in the ticket's item 5; (3) CI/docs still install GL dev packages: .github/workflows/build.yaml:149,153 (libgl1-mesa-dev, libglu1-mesa-dev, libosmesa6-dev) and Makefile:11 comment (mesa glu), and the CLAUDE.md package list; (4) 'Clean configure without mesa/libGL' acceptance not demonstrated.

Verified against forgejo/main: PARTIAL, leaving open. Done: cmake/OpenGL.cmake and FindOpenGL include, OpenGL::GL link, OSMesa path, GLEXT.cmake, and the llrenderheadless target are gone; no Tracy-GL define in cmake. Remaining: (1) Windows still links opengl32 (indra/cmake/UI.cmake:34); (2) llwindowheadless is still built and used (llwindow/CMakeLists.txt:20,31; llwindow.cpp:28,383), listed in the ticket's item 5; (3) CI/docs still install GL dev packages: .github/workflows/build.yaml:149,153 (libgl1-mesa-dev, libglu1-mesa-dev, libosmesa6-dev) and Makefile:11 comment (mesa glu), and the CLAUDE.md package list; (4) 'Clean configure without mesa/libGL' acceptance not demonstrated.
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Pushed to main at 07c8a3ac73. Headless/OSMesa removed along with the GL link pieces. To test: Linux and Windows startup.

Pushed to main at 07c8a3ac73. Headless/OSMesa removed along with the GL link pieces. To test: Linux and Windows startup.
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Shipped in a published release and tested; closing (testing-lane sweep 2026-10-11).

Shipped in a published release and tested; closing (testing-lane sweep 2026-10-11).
sky_line 2026-10-11 13:24:49 +00:00
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sky_line/Slipstream#76
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