I've just uploaded a minor update (3.3.0.1957) to Rtools33, adding the
cygpath.exe utility. That utility converts between Windows style paths
like D:/Rtools and Cygwin style paths like /cygdrive/d/Rtools. It may
be useful in configuration files if your external library expects to
find gcc on the path, since Rtools no longer puts it there. Assuming
you want to use the Rtools toolchain, you can construct the path to the
gcc directory in your Makevars.win file as
$(cygpath $(RTOOLS))gcc492_$(WIN)/bin
(where RTOOLS and WIN are macros from RHOME/etc/*/Makeconf that should
already have been read.)
Thanks to JJ Allaire for the prompting on this.
Duncan Murdoch
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