Added support for custom CFLAGS and LDFLAGS.
Added support for custom CFLAGS and LDFLAGS.

PetrWolf/ninja,ukai/ninja,syntheticpp/ninja,fifoforlifo/ninja,vvvrrooomm/ninja,ignatenkobrain/ninja,iwadon/ninja,dendy/ninja,TheOneRing/ninja,iwadon/ninja,mutac/ninja,kimgr/ninja,mgaunard/ninja,chenyukang/ninja,juntalis/ninja,pck/ninja,LuaDist/ninja,moroten/ninja,chenyukang/ninja,okuoku/ninja,barak/ninja,maximuska/ninja,rjogrady/ninja,ninja-build/ninja,atetubou/ninja,ilor/ninja,iwadon/ninja,lizh06/ninja,mohamed/ninja,sxlin/dist_ninja,rjogrady/ninja,vvvrrooomm/ninja,PetrWolf/ninja,rjogrady/ninja,tychoish/ninja,nornagon/ninja,ThiagoGarciaAlves/ninja,tfarina/ninja,tfarina/ninja,rnk/ninja,synaptek/ninja,sorbits/ninja,glensc/ninja,Maratyszcza/ninja-pypi,SByer/ninja,ukai/ninja,sorbits/ninja,guiquanz/ninja,kissthink/ninja,kissthink/ninja,dorgonman/ninja,tfarina/ninja,ctiller/ninja,mydongistiny/ninja,fuchsia-mirror/third_party-ninja,cipriancraciun/ninja,kimgr/ninja,glensc/ninja,synaptek/ninja,synaptek/ninja,martine/ninja,maruel/ninja,ikarienator/ninja,nafest/ninja,fifoforlifo/ninja,dpwright/ninja,juntalis/ninja,pck/ninja,nocnokneo/ninja,bradking/ninja,TheOneRing/ninja,ctiller/ninja,juntalis/ninja,metti/ninja,bmeurer/ninja,sgraham/ninja,PetrWolf/ninja-main,automeka/ninja,sxlin/dist_ninja,sgraham/ninja,jimon/ninja,metti/ninja,moroten/ninja,mutac/ninja,barak/ninja,jimon/ninja,bmeurer/ninja,dendy/ninja,nafest/ninja,tychoish/ninja,colincross/ninja,AoD314/ninja,ilor/ninja,automeka/ninja,ehird/ninja,sorbits/ninja,mydongistiny/ninja,SByer/ninja,SByer/ninja,automeka/ninja,hnney/ninja,nickhutchinson/ninja,pathscale/ninja,ThiagoGarciaAlves/ninja,TheOneRing/ninja,ThiagoGarciaAlves/ninja,okuoku/ninja,kissthink/ninja,mgaunard/ninja,guiquanz/ninja,ninja-build/ninja,mohamed/ninja,drbo/ninja,nico/ninja,rnk/ninja,barak/ninja,jhanssen/ninja,kimgr/ninja,LuaDist/ninja,guiquanz/ninja,ignatenkobrain/ninja,cipriancraciun/ninja,rjogrady/ninja,Ju2ender/ninja,okuoku/ninja,automeka/ninja,hnney/ninja,metti/ninja,nico/ninja,ndsol/subninja,maruel/ninja,dendy/ninja,yannicklm/ninja,bmeurer/ninja,sxlin/dist_ninja,mathstuf/ninja,mdempsky/ninja,jhanssen/ninja,purcell/ninja,maximuska/ninja,mydongistiny/ninja,purcell/ninja,vvvrrooomm/ninja,metti/ninja,maruel/ninja,ukai/ninja,ninja-build/ninja,jsternberg/ninja,autopulated/ninja,LuaDist/ninja,sxlin/dist_ninja,PetrWolf/ninja,mydongistiny/ninja,ilor/ninja,mohamed/ninja,ThiagoGarciaAlves/ninja,guiquanz/ninja,yannicklm/ninja,bradking/ninja,mdempsky/ninja,sgraham/ninja,bradking/ninja,ehird/ninja,kissthink/ninja,mathstuf/ninja,purcell/ninja,nicolasdespres/ninja,fuchsia-mirror/third_party-ninja,fuchsia-mirror/third_party-ninja,Maratyszcza/ninja-pypi,moroten/ninja,jendrikillner/ninja,Maratyszcza/ninja-pypi,autopulated/ninja,Ju2ender/ninja,cipriancraciun/ninja,bmeurer/ninja,PetrWolf/ninja-main,ctiller/ninja,ignatenkobrain/ninja,pathscale/ninja,SByer/ninja,curinir/ninja,ctiller/ninja,lizh06/ninja,mutac/ninja,liukd/ninja,dendy/ninja,liukd/ninja,drbo/ninja,nico/ninja,mohamed/ninja,dabrahams/ninja,ehird/ninja,nornagon/ninja,synaptek/ninja,pathscale/ninja,nicolasdespres/ninja,maximuska/ninja,liukd/ninja,rnk/ninja,dpwright/ninja,jsternberg/ninja,moroten/ninja,nico/ninja,juntalis/ninja,dorgonman/ninja,maruel/ninja,tychoish/ninja,iwadon/ninja,pathscale/ninja,ukai/ninja,nicolasdespres/ninja,Qix-/ninja,dpwright/ninja,syntheticpp/ninja,AoD314/ninja,Maratyszcza/ninja-pypi,curinir/ninja,maximuska/ninja,Qix-/ninja,mgaunard/ninja,jimon/ninja,vvvrrooomm/ninja,purcell/ninja,chenyukang/ninja,lizh06/ninja,nafest/ninja,jsternberg/ninja,drbo/ninja,TheOneRing/ninja,ndsol/subninja,glensc/ninja,fifoforlifo/ninja,sxlin/dist_ninja,fifoforlifo/ninja,jimon/ninja,sorbits/ninja,colincross/ninja,LuaDist/ninja,ikarienator/ninja,jendrikillner/ninja,martine/ninja,atetubou/ninja,mathstuf/ninja,dabrahams/ninja,nornagon/ninja,autopulated/ninja,yannicklm/ninja,Ju2ender/ninja,dorgonman/ninja,tfarina/ninja,Ju2ender/ninja,Qix-/ninja,mdempsky/ninja,tychoish/ninja,martine/ninja,lizh06/ninja,curinir/ninja,ndsol/subninja,barak/ninja,ninja-build/ninja,nicolasdespres/ninja,drbo/ninja,dabrahams/ninja,nafest/ninja,AoD314/ninja,jhanssen/ninja,ignatenkobrain/ninja,PetrWolf/ninja,mgaunard/ninja,nornagon/ninja,ilor/ninja,curinir/ninja,AoD314/ninja,kimgr/ninja,ehird/ninja,hnney/ninja,rnk/ninja,nocnokneo/ninja,jendrikillner/ninja,ikarienator/ninja,syntheticpp/ninja,sxlin/dist_ninja,glensc/ninja,pck/ninja,PetrWolf/ninja-main,mathstuf/ninja,yannicklm/ninja,hnney/ninja,PetrWolf/ninja-main,ndsol/subninja,okuoku/ninja,sxlin/dist_ninja,jsternberg/ninja,martine/ninja,atetubou/ninja,colincross/ninja,syntheticpp/ninja,mdempsky/ninja,ikarienator/ninja,nickhutchinson/ninja,nickhutchinson/ninja,dorgonman/ninja,jendrikillner/ninja,chenyukang/ninja,sgraham/ninja,colincross/ninja,fuchsia-mirror/third_party-ninja,dabrahams/ninja,nickhutchinson/ninja,nocnokneo/ninja,pck/ninja,jhanssen/ninja,nocnokneo/ninja,cipriancraciun/ninja,atetubou/ninja,dpwright/ninja,autopulated/ninja,mutac/ninja,liukd/ninja,bradking/ninja,Qix-/ninja