[Windows] Debug SimpleITK build failed

Development
1

Hello all,

My debug build of Slicer fails on SimpleITK looking for python36_d.lib, is this a known issue?

I’ve scanned 3D slicer Windows 10 Build Fail (only SimpleITK project) and that doesn’t seem to be related.

Qt 5.15.0, CMake 3.17.3, VS2019, v140 toolkit

[Edit: Deleted directories as I ran out of disk space, will get Git hash shortly]

Adam

2

That seems most like what was discussed in https://github.com/Slicer/Slicer/issues/4898#issuecomment-623453879 and I don’t believe it was ever fully resolved.

3

Yes, it looks like the same issue. It would be better to continue the discussion in the issue tracker to keep all related information in one place.

1 Like
4

Hi Andras,

After further exploration, I tried reverting this change (Edit: I reverted only the change to External_SimpleITK.cmake):

and re-doing a clean build. It succeeded. Somehow having the variable be empty doesn’t trigger the #pragma in the python headers to include the debug .lib

My steps:

  1. Checkout latest (f665904 at the time)
  2. CMake and superbuild! Fail with “cannot find python36_d.lib”
  3. Delete SimpleITK, SimpleITK-build, etc… (all folders relating to SimpleITK)
  4. CMake superbuild again, recreate fresh SimpleITK and SimpleITK prefix dirs
  5. Build SimpleITK-download from superbuild project
  6. Build SimpleITK from superbuild project, success

Any thoughts? Could setting the debug lib variable somehow cause the preprocessor defines to change?

5

Nope! Just did another clean build and it worked. Yay…

6

Have you every solve this problem? I met the exactly same problem with you under the same environment setting.

I noticed that there might be several solutions mentioned above, which one could solve the problem?

I was wondering why can’t we just change the linked python lib to the release version of python for simpleITK in CMakeLists.txt to solve the bugs forever?

7

The problem is fixed now (in this commit). Update to the latest master version and rebuild Slicer from scratch (delete the entire build folder).