fix pnacl compile
fix pnacl compile

0-wiz-0/bgfx,bkaradzic/bgfx,mendsley/bgfx,jpcy/bgfx,jdryg/bgfx,fluffyfreak/bgfx,jdryg/bgfx,Synxis/bgfx,mmicko/bgfx,jdryg/bgfx,elmindreda/bgfx,MikePopoloski/bgfx,0-wiz-0/bgfx,attilaz/bgfx,mendsley/bgfx,elmindreda/bgfx,v3n/bgfx,emoon/bgfx,v3n/bgfx,andr3wmac/bgfx,LWJGL-CI/bgfx,mmicko/bgfx,bkaradzic/bgfx,jdryg/bgfx,kondrak/bgfx,bkaradzic/bgfx,bkaradzic/bgfx,mendsley/bgfx,jpcy/bgfx,Synxis/bgfx,jpcy/bgfx,fluffyfreak/bgfx,elmindreda/bgfx,MikePopoloski/bgfx,jpcy/bgfx,emoon/bgfx,andr3wmac/bgfx,0-wiz-0/bgfx,fluffyfreak/bgfx,attilaz/bgfx,LWJGL-CI/bgfx,fluffyfreak/bgfx,septag/bgfx,Synxis/bgfx,attilaz/bgfx,mmicko/bgfx,aonorin/bgfx,kondrak/bgfx,MikePopoloski/bgfx,septag/bgfx,andr3wmac/bgfx,kondrak/bgfx,aonorin/bgfx,emoon/bgfx,LWJGL-CI/bgfx,LWJGL-CI/bgfx,septag/bgfx,v3n/bgfx,aonorin/bgfx