Hello:

I'm trying to find some reading material about .a files.  I'm attempting to
build a package which accesses many C routines via .Call, and its been
suggested that I need a lib_C_code.a file inside the C directory.   What
does such a file do?  Where can I read somthing about it?

I've tried to search for it, but keywords "R package .a" doesn't work
because the ".a" is too generic.

Thanks in advance!

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