math/R: set SONAME for some R libraries

[jrm]

Summary

These are some suggested tweaks to the patch for math/R submitted by pawel@
in Bug 219776.

• Add links in ${PREFIX}/lib for the libraries that we are using as system libraries.
• Set LIBVER to ${PORTVERSION:R}, i.e., R's major_version.minor_version

[jrm]

Minor tweak to how the links in ${PREFIX}/lib are created.

[mat]

math/R/Makefile

149–159 ↗

(On Diff #30850)

I wonder if this should not be replaced by

USE_LDCONFIG= ${PREFIX}/lib/R/lib

[jrm]

math/R/Makefile

149–159 ↗

(On Diff #30850)

Upstream makes a big deal about the libraries under lib/R/lib/ not being system libraries. If you are interested in the gory details, this thread spells it out: https://stat.ethz.ch/pipermail/r-devel/2016-November/073397.html. I thought creating links under lib/ would make it clear that we are intending to make these system libraries.

[mat]

math/R/Makefile

149–159 ↗

(On Diff #30850)

Mmmmm, but does any port actually needs this ?

[pawel]

math/R/Makefile

149–159 ↗

(On Diff #30850)

I find this additional links messy and fail to see benefits. Interested consumers can get correct linker flags from pkg-config:

% pkg-config --libs libR
-Wl,--export-dynamic -L/usr/local/lib -Wl,-rpath=/usr/local/lib/gcc5 -L/usr/local/lib/gcc5 -B/usr/local/bin -fstack-protector -L/usr/local/lib/R/lib -lR

So my vote here goes for USE_LDCONFIG= ${PREFIX}/lib/R/lib like in my initial patch.

[jrm]

Do not create links to lib/R/lib/* in lib/.