Just joined this mailing list -- not sure if this is the right list to send this question, but I have a question about cross-compiling R. I am working with R-1.9.1.tgz.
It may just be with my version of mingw32, but it seems that expm1 is not defined, so I tried to ensure that HAVE_EXPM1 was #undef'ed before cross-compiling. The problem is that, in <include/Rmath.h> if it is #undef'ed it is then #define'd as 1, meaning that the line where expm1 is declared automatically not included. I had similar problems with logpq, but after changing Rmath.h cross-compiling was straightforward. My question is: is this a "bug" in Rmath.h with respect to expm1 and logp1? If so, how would you cross-compile, or even compile, if you don't have expm1 or logp1?
Thanks,
Jonathan Taylor
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