Hello, I am trying to use eigen and boost at the same time, in R (Windows). The reason is that eigen allows now data types such as float128.
What happens is that this link between eigen and boost is new (boost 1.68). I believe BH uses boost 1.66. I received an answer in stackoverflow: https://stackoverflow.com/questions/52871038/using-boost-multiprecision-with-rcppeigen/52887046?noredirect=1#comment92801003_52887046 of how to install boost 1.68 without needing BH. I have tried to implement that solution, but it does not work: I get an error message such as "c:/rtools/mingw_64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lgfortran collect2.exe: error: ld returned 1 exit status". And now I do not know how to solve this "cannot find -lgfortran" issue (note: this could be entangled with the fact that I substituted the gcc 4.9 compiler in Rtools for gcc 8.1, since I could not compile a single sourceCpp with gcc 4.9, but yes with gcc 8.1; I can perfectly compile Rcpp projects, though). So, I would like to kindly ask if BH could be updated to boost 1.68. I understand that updating BH must be a big work, and we all have many things to do. But I see usually BH is updated twice per year, and this year there has been one update so far. Also, the union of BH and eigen is possibly a source of happiness for this community, since AFAIK, so far BH and eigen were completely separated. Of course, if this request cannot be executed, I am happy too. I am just asking in case somebody could do it without too much work, and in fact, he was thinking in doing it anyway. Best regards Jordi Molins i Coronado +34 69 38 000 59
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