rpath error in cython libraries

[Jason Bacon <jtocino%gmx.com@localhost>]

Hoping someone has run into this problem before and knows something that
I'm overlooking.  If not, I'll figure it out eventually.  Not urgent...

I'm not sure what "$ORIGIN" is here, but output from the FreeBSD port
(from which this package was derived) is basically identical and it
doesn't have any such issues.  If I disable PKG_DEVELOPER in mk.conf,
pysam installs cleanly, but client programs also report problems finding
these libraries.

All of this info is in wip/py-pysam/TODO.

Same errors on NetBSD and Alma8:

cc -shared -L. -Wl,-zrelro -Wl,-znow -L/usr/lib -Wl,-R/usr/lib
-L/home/bacon/Pkgsrc/pkg/lib -Wl,-R/home/bacon/Pkgsrc/pkg/lib
-L/usr/X11R7/lib -Wl,-R/usr/X11R7/lib -Wl,-zrelro -Wl,-znow -L/usr/lib
-Wl,-R/usr/lib -L/home/bacon/Pkgsrc/pkg/lib
-Wl,-R/home/bacon/Pkgsrc/pkg/lib -L/usr/X11R7/lib -Wl,-R/usr/X11R7/lib
-Wl,-zrelro -Wl,-znow -L/usr/lib -Wl,-R/usr/lib
-L/home/bacon/Pkgsrc/pkg/lib -Wl,-R/home/bacon/Pkgsrc/pkg/lib -O2 -fPIC
-D_FORTIFY_SOURCE=2 -I/usr/include
-I/home/bacon/Pkgsrc/pkg/include/python3.10
-I/home/bacon/Pkgsrc/pkg/include -I/usr/include
-I/home/bacon/Pkgsrc/pkg/include/python3.10
-I/home/bacon/Pkgsrc/pkg/include
build/temp.netbsd-9.3-amd64-cpython-310/pysam/libcsamfile.o
-L/home/bacon/Pkgsrc/pkgsrc/wip/py-pysam/work/pysam-0.21.0/pysam
-L/home/bacon/Pkgsrc/pkg/lib
-Lbuild/lib.netbsd-9.3-amd64-cpython-310/pysam
-Lbuild/lib.netbsd-9.3-amd64-cpython-310/pysam
-Lbuild/lib.netbsd-9.3-amd64-cpython-310/pysam
-Lbuild/lib.netbsd-9.3-amd64-cpython-310/pysam
-Lbuild/lib.netbsd-9.3-amd64-cpython-310/pysam
-Lbuild/lib.netbsd-9.3-amd64-cpython-310/pysam
-L/home/bacon/Pkgsrc/pkg/lib -lz -lhts -lchtslib -lcutils -o
build/lib.netbsd-9.3-amd64-cpython-310/pysam/libcsamfile.so
-Wl,-rpath,$ORIGIN
ld: warning: libcsamtools.so, needed by
build/lib.netbsd-9.3-amd64-cpython-310/pysam/libcutils.so, not found
(try using -rpath or -rpath-link)
ld: warning: libcbcftools.so, needed by
build/lib.netbsd-9.3-amd64-cpython-310/pysam/libcutils.so, not found
(try using -rpath or -rpath-link)

# => Checking for missing run-time search paths in py310-pysam-0.21.0
# ERROR: lib/python3.10/site-packages/pysam/libcalignedsegment.so:
missing library: libchtslib.so

NetBSD netbsd9.acadix  bacon ~/Pkgsrc/pkgsrc/wip/py-pysam 1004:
(pkgsrc): find work/ -name libcsamtools.so
work/pysam-0.21.0/build/lib.netbsd-9.3-amd64-cpython-310/pysam/libcsamtools.so
work/.destdir/home/bacon/Pkgsrc/pkg/lib/python3.10/site-packages/pysam/libcsamtools.so

NetBSD netbsd9.acadix  bacon ~/Pkgsrc/pkgsrc/wip/py-pysam 1006:
(pkgsrc): find work/ -name libchtslib.so
work/pysam-0.21.0/build/lib.netbsd-9.3-amd64-cpython-310/pysam/libchtslib.so
work/.destdir/home/bacon/Pkgsrc/pkg/lib/python3.10/site-packages/pysam/libchtslib.so