Fix libpcre dependency issue under Windows.
Fix libpcre dependency issue under Windows.

ppedrot/coq,coq/coq,ppedrot/coq,ejgallego/coq,Matafou/coq,coq/coq,ppedrot/coq,william-lawvere/coq,SkySkimmer/coq,gares/coq,william-lawvere/coq,letouzey/coq-wip,silene/coq,ejgallego/coq,amintimany/coq,letouzey/coq-wip,SkySkimmer/coq,william-lawvere/coq,Zimmi48/coq,Zimmi48/coq,maximedenes/coq,amintimany/coq,SkySkimmer/coq,gares/coq,JasonGross/coq,JasonGross/coq,Matafou/coq,maximedenes/coq,amintimany/coq,gares/coq,maximedenes/coq,Zimmi48/coq,gares/coq,letouzey/coq-wip,ppedrot/coq,silene/coq,JasonGross/coq,coq/coq,letouzey/coq-wip,maximedenes/coq,ppedrot/coq,maximedenes/coq,Zimmi48/coq,ejgallego/coq,ejgallego/coq,gares/coq,letouzey/coq-wip,SkySkimmer/coq,Matafou/coq,coq/coq,silene/coq,JasonGross/coq