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qwt links Qt6::OpenGL, whose .prl names the GL library by absolute
path, so the link dies before it ever looks at -lGL:
linking ../lib/libomqwt.so.6.3.0
clang: error: no such file or directory:
'/usr/lib/x86_64-linux-gnu/libGL.so'
jammy's qt6-base-dev (6.2.4) only depends on libglx-dev and
libopengl-dev; bookworm, noble, trixie and resolute all add libgl-dev,
which is what ships that symlink. That is why OMSens, which links the
GLVND libraries directly, got through and OMPlot did not, and why only
jammy failed - on amd64 and armhf alike.
Assisted-by: Claude Opus 5
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qwt links Qt6::OpenGL, whose .prl names the GL library by absolute path, so the link dies before it ever looks at -lGL:
jammy's qt6-base-dev (6.2.4) only depends on libglx-dev and libopengl-dev; bookworm, noble, trixie and resolute all add libgl-dev, which is what ships that symlink. That is why OMSens, which links the GLVND libraries directly, got through and OMPlot did not, and why only jammy failed - on amd64 and armhf alike.
Assisted-by: Claude Opus 5