Add missing CXXFLAGS equivalents of CFLAGS
Add missing CXXFLAGS equivalents of CFLAGS

beni55/rebar,heroku/rebar,syl20bnr/rebar,lpgauth/rebar,surik/rebar3,scatterbrain/rebar,zugolosian/rebar3,norton/rebar3,fabiankrol/rebar3,zugolosian/rebar3,jacktang/rebar,blt/rebar3,K2InformaticsGmbH/rebar,jbalint/rebar3,GabrielNicolasAvellaneda/rebar,SiDen/rebar,paulo-ferraz-oliveira/rebar,platinumthinker/rebar,K2InformaticsGmbH/rebar,platinumthinker/rebar,bsmr-erlang/rebar,RubberCthulhu/rebar,norton/rebar,lpgauth/rebar,RubberCthulhu/rebar,apache/couchdb-rebar,macintux/rebar,cloudant/couchdb-rebar,shkumagai/rebar,lrascao/rebar3,paulo-ferraz-oliveira/rebar,matwey/rebar,K2InformaticsGmbH/rebar,wcy123/rebar,bsmr-erlang/rebar,processone/rebar3,sile/rebar3,wcy123/rebar,basho/rebar,basho/rebar,benoitc/rebar3,rebar/rebar3,evnix/rebar,K2InformaticsGmbH/rebar,vladdu/rebar3,tsloughter/rebar3,dcarastan/rebar,norton/rebar,macintux/rebar,rebar/rebar3,beni55/rebar-1,walrusVision/rebar3,choptastic/rebar,thomasbhatia/rebar,dcarastan/rebar,surik/rebar3,evnix/rebar,evnix/rebar,matwey/rebar,matwey/rebar,djnym/rebar3,syl20bnr/rebar,walrusVision/rebar3,fauxsoup/rebar3,shkumagai/rebar,jacktang/rebar,benoitc/rebar3,K2InformaticsGmbH/rebar,paulo-ferraz-oliveira/rebar,saleyn/rebar3,sile/rebar3,matwey/rebar,rebar/rebar,beni55/rebar-1,rebar/rebar,deadok22/rebar,apache/couchdb-rebar,norton/rebar,GabrielNicolasAvellaneda/rebar,matwey/rebar,norton/rebar,fabiankrol/rebar3,blt/rebar3,rebar/rebar,bsmr-erlang/rebar,scatterbrain/rebar,thomasbhatia/rebar,syl20bnr/rebar,lrascao/rebar,ferd/rebar3,csyangchen/rebar,dcarastan/rebar,linearregression/rebar3,scatterbrain/rebar,heroku/rebar,lrascao/rebar,thomasbhatia/rebar,SiDen/rebar,apache/couchdb-rebar,lrascao/rebar,choptastic/rebar,lrascao/rebar,fauxsoup/rebar3,CMoH/rebar,SiDen/rebar,macintux/rebar,project-fifo/rebar3,shkumagai/rebar,jbalint/rebar3,erlang/rebar3,lpgauth/rebar,bsmr-erlang/rebar,CMoH/rebar,CMoH/rebar,beni55/rebar,beni55/rebar,csyangchen/rebar,GabrielNicolasAvellaneda/rebar,oubiwann/rebar,csyangchen/rebar,project-fifo/rebar3,platinumthinker/rebar,lrascao/rebar,oubiwann/rebar,oubiwann/rebar,fishcakez/rebar3,cloudant/couchdb-rebar,kellymclaughlin/rebar3,linearregression/rebar3,jacktang/rebar,processone/rebar3,cloudant/couchdb-rebar,choptastic/rebar,deadok22/rebar