Recipe for more modern GCC

[holtgrewe]

I would like to create a conda Bioconda package that relies on a more modern version of GCC.

The software I want to package is Flexbar which relies on the SeqAn library >=2.2.0 which in turn relies on GCC >=4.9.2 for C++14 features. This problem also exists for other SeqAn apps such as Yara and RazerS 3 which are currently packaged by downloading pre-built binaries by the SeqAn authors.

Without an updated GCC (or alternatively clang++), this software cannot be compiled. This will become more and more of a problem as more software relies on modern C++ features.

I asked in the Bioconda issue tracker (bioconda/bioconda-recipes#3224) and also @johanneskoester directly and the recommendation was to ask here for input on this (and also to ping @msarahan).

Regarding on my pull request conda-forge/staged-recipes#2089 in conda-forge, Johannes told me that versions should not be part of the package name and suggested this problem should be discussed here.

Please advise.

Related seqan/seqan issue: seqan/seqan#1547