agl/curve25519-donna — pull request #10 by warner (2011-10-14 21:34:30+00:00)
Title: run 'ranlib' on .a files, needed to make OS-X (10.6.8) happy

Without it, I get an error when e.g. test-curve25519-donna attempts to link
against curve25519-donna.a built by Snow Leopard's gcc-4.2.1 (as mangled by
Apple):

ld: in curve25519-donna.a, archive has no table of contents

I vaguely remember modern gcc/ar producing TOCs by default, so ranlib is
redundant these days, but this system's binutils are probably too old. I
believe ranlib is generally harmless on other systems.