biology/phyml: fix build on recent current
mostly backport of:
https://github.com/stephaneguindon/phyml/commit/3574fb82d54438518d50d5ba8f74423d5395a96a
Obtained from: https://github.com/stephaneguindon/phyml/commit/3574fb82d54438518d50d5ba8f74423d5395a96a