[coq_makefile] honor environment for OCAMLFIND
[coq_makefile] honor environment for OCAMLFIND

JasonGross/coq,ejgallego/coq,ejgallego/coq,silene/coq,coq/coq,coq/coq,coq/coq,coq/coq,SkySkimmer/coq,Zimmi48/coq,SkySkimmer/coq,silene/coq,Zimmi48/coq,Zimmi48/coq,silene/coq,SkySkimmer/coq,JasonGross/coq,JasonGross/coq,Zimmi48/coq,ejgallego/coq,JasonGross/coq,ejgallego/coq,SkySkimmer/coq