Rtools and gfortran
In /src/gnuwin32/Mkrules.rules already has lquadmath, but not lm. /src/gnuwin32/fixed/etc/Makeconf has neither. Avi
On Wed, Sep 16, 2015 at 5:54 AM, Jeroen Ooms <jeroenooms at gmail.com> wrote:
For those helping with testing with the new tool chain: Some packages containing Fortran code (such as 'vegan') which worked with the old tool chain, gave linking errors under the new one. It turns out that the gcc 4.9.3 requires you to explicitly link libm and libquadmath. So in Makeconf we need: FLIBS = -lgfortran -lm -lquadmath The same flags are used on Linux as well. I am not a Fortran expert, but from what I can see these libraries always get statically linked so the compiled R binary packages should still work on machines without a tool chain.
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