pkgsrc lang/llvm 16.x vs. cmake vs. $ORIGIN

[Havard Eidnes <he%NetBSD.org@localhost>]

Hi,

just tried to build llvm 16.0.6 on NetBSD/macppc 9.0 using a
freschly updated cmake 3.28.1, but in the install phase this
bombs out as follows:

-- Installing: /usr/pkgsrc/lang/llvm/work/.destdir/usr/pkg/bin/llvm-tblgen
CMake Error at utils/TableGen/cmake_install.cmake:50 (file):
  file RPATH_CHANGE could not write new RPATH:

    $ORIGIN/../lib

  to the file:

    /usr/pkgsrc/lang/llvm/work/.destdir/usr/pkg/bin/llvm-tblgen

  The current RPATH is:

    /usr/pkg/lib

  which does not contain:

    $ORIGIN/../lib:/usr/pkg/lib:

  as was expected.
Call Stack (most recent call first):
  cmake_install.cmake:63 (include)


*** Error code 1

Now, I know that pkgsrc has a "hate" relationship with RPATH
containing $ORIGIN, so maybe this is to be expected, but should
then not this issue have surfaced already and been fixed?

"I want my LLVM!"

I find this code in

work/llvm-16.0.6.src/cmake-pkgsrc-build/utils/TableGen/cmake_install.cmake

but ... is that a generated file?  I would not expect to find
"pkgsrc" in an upstream path name.

As with most things related to cmake, I'm grossed out and
confused, both at the same time.  "Help!"

Regards,

- Håvard