SlicerOpenIGTLink is not available on Nightly Build 2025-08-27 for Linux

[tokjun]

SlicerOpenIGTLink is not available for recent Linux nightly builds. SlicerIGT is not available either but not sure if they are related. I will look into more and report back.

[tokjun]

BTW, those are available for Mac and Windows, so the issue seems to be specific to Linux.

[tokjun]

The error could not be reproduced on my Ubuntu 24.04. The error might depend on the Linux environment.

[tokjun]

The logs right before and after the build error started happening.

Before (7/12/2025)
https://slicer.cdash.org/builds/3860365

After (7/22/2025)
https://slicer.cdash.org/builds/3870662

And the build error message:

[  3%] Creating directories for 'OpenIGTLink'
[  7%] Performing download step (git clone) for 'OpenIGTLink'
Cloning into 'OpenIGTLink'...
Already on 'master'
Your branch is up to date with 'origin/master'.
gmake[5]: *** read jobs pipe: Bad file descriptor.  Stop.
gmake[5]: *** Waiting for unfinished jobs....
[ 11%] Generate version-OpenIGTLink.txt and license-OpenIGTLink.txt

[tokjun]

Comparing the two logs, I noticed that the compiler version has been changed. The C compiler identification was

• "GNU 7.3.1" before 7/12
• "GNU 14.2.1" after 7/22.

My environment, which can still build the extension, has

• "GNU 13.3.0"

[tokjun]

I also found that there are other modules having the same error since 7/22:

• BoneTexture
• SlicerRT
• MedialSkeleton
• PBNRR
• PortPlacement
• SlicerVMTK (There are other issues)
• SegmentMesher
• SlicerANT
• SlicerAutoscoper
• SlicerDcm2Nii
• SlicerDMRI
  -ABLTemporalBone
• SlicerHeart

[tokjun]

The issue has been already discussed in https://discourse.slicer.org/t/missing-prebuilds-for-igt-extensions-for-preview-release-5-9/44143