Change the way we detect gnu-like compiler for cases where 'c++' is chosen over 'g++'
Change the way we detect gnu-like compiler for cases where 'c++' is chosen over 'g++'

biddyweb/flexisip,BelledonneCommunications/flexisip,gale320/flexisip,gale320/flexisip,BelledonneCommunications/flexisip,BelledonneCommunications/flexisip,biddyweb/flexisip,gale320/flexisip,biddyweb/flexisip,BelledonneCommunications/flexisip,biddyweb/flexisip,gale320/flexisip