[R] R CMD SHLIB ignores changes in header files

[Faheem Mitha]

Dear People,

If I do

R CMD SHLIB foo.c

where foo.c includes a header file (foo.h, say) then if I change foo.h and
rerun R CMD SHLIB it does not recompile the shared library. I have to
touch foo.c before it will recompile. I am finding this increasingly
annoying. Is this a known issue, or am I missing something?

This clearly has to do with how the make process underlying RM CMD SHLIB,
therefore presumably the file /usr/lib/R/bin/SHLIB is the one to look at.
This behaviour appears to me to be a bug, but I'm not sure what the best
way to fix it would be. Perhaps make it possible to pass header file names
to R CMD SHLIB as arguments?

                                        Sincerely, Faheem Mitha.

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