viewer.git/indra/cmake/UI.cmake, branch 26.4

Merge remote-tracking branch 'secondlife/release/26.4' into 26.4

2026-09-04T13:58:53Z

So Cairo headers can be found on Arch too

2026-08-18T09:54:44Z

Seems to be needed now on aarch64, but doesn't hurt to have it too on x86-64.

Compare LINUX_DISTRO with freedesktop on Flatpak

2026-07-31T11:29:02Z

so no need for USE_FLATPAK, and just maybe there are some other platforms that use this runtime as the distro info.

Use packaged Debian 13 FLTK 1.4 for Flatpak

2026-07-04T06:07:27Z

See commit 21ef63545ca07ef625edb742b2b3d1473bf33f13

Flatpak support

2026-06-22T03:25:21Z

Still uses prebuilt GLU, could be improved by using the glu shared module. Still uses prebuilt OpenAL, could be improved by separating the ALUT dependency (which isn't available on the runtime) from it, so we could use runtime's OpenAL. Still uses prebuilt LibXML2, could be improved by separating the Minizip & ColladaDOM from it (which aren't available on the runtime) from it, so we could use runtime's LibXML2 but have ColladaDOM built against it (and a still non-runtime Minizip). Still uses FLTK 1.3, when I tried using 1.4, it still had linking errors (might need to just add Cairo libraries to the target_link_libraries). VLC plugins are installed in vlc/plugins path relative to the vlc & vlccore libraries, the way they are in the distro I got the binaries from (Debian), cause I think it's the libraries that are compiled with that path. Still uses prebuilt dependencies in general, could be improved by having them as modules to be built. _FORTIFY_SOURCE needs to be skipped to avoid redefinition cause Flatpak build system already defines it. The conditionals for deciding installation paths need to be reorganised to accomodate installation that doesn't require an encapsulating namespace (because the installed files are already encapsulated in the app sandbox). The library directory naming scheme used here is lib64. The libGLESv2.so & libvulkan.so.1 installed are still copies, not links yet, because I'm still not familiar yet with the runtime hierarchies (they might reside just in /usr/lib/x86_64-linux-gnu).

Use FLTK 1.4 on Ubuntu instead of 1.3 now on 26.04

2026-05-19T11:07:37Z

See commit 21ef63545ca07ef625edb742b2b3d1473bf33f13

Use FLTK 1.4 on Debian instead of 1.3

2025-11-21T08:16:57Z

which fixes the problem of freezing/crashing or disappearing of the viewer, at least on default GNOME-based Debian.

Fix building with clang on non-darwin platforms

2025-11-03T02:40:05Z

Signed-off-by: Rye

Add support for GLX and EGL to GL extension loader

2025-11-03T02:40:05Z

Fix dullahan wayland support Fix shader GL_ERROR under GL Core profile in Mesa Signed-off-by: Rye

CMake changes for linux64 support including code from archive/develop

2025-10-27T08:59:13Z

Restore changes for GLIB based dbus support from archive/develop Signed-off-by: Rye