clang-12: scan-view does not work

[szhorvat (Szabolcs Horvát)]

Following the recent fix of issue #63026, I build clang-12 with the +analyzer variant and checked whether it works, roughly along the lines I wrote up in this wiki: ​https://github.com/igraph/igraph/wiki/Running-linters-and-analysers

The analyzer itself, and the scan-build script appear to work fine.

The scan-view script (called scan-view-mp-12) does not work. The output is this:

Traceback (most recent call last):
  File "/opt/local/libexec/llvm-12/bin/scan-view", line 150, in <module>
    main()
  File "/opt/local/libexec/llvm-12/bin/scan-view", line 147, in main
    run(port, args, args.root)
  File "/opt/local/libexec/llvm-12/bin/scan-view", line 74, in run
    import ScanView
  File "/opt/local/libexec/llvm-12/bin/../share/scan-view/ScanView.py", line 29, in <module>
    import Reporter
ImportError: No module named Reporter

scan-view is used to view the analysis reports in a browser. One might use scan-view-mp-11 to view the results of an analysis from clang-12, so it's not a huge deal. But scan-view-mp-12 should work as well.

I have no yet had the time to figure out why exactly this is broken and how to fix it, but here's the bug report in advance.

Related:

• ​https://trac.macports.org/ticket/63038
• ​https://trac.macports.org/ticket/63026