linux clang support

[jjYBdx4IL]

I'm able to compile BGFX using llvm/clang 9.0.1 on Ubuntu 18.04 amd64:

sed -i makefile -e 's:linux-gcc:linux-clang:'                                                                                                                                                                    
sed -i makefile -e 's:.build/projects/gmake-linux:.build/projects/gmake-linux-clang:'                                                                                                                            
make .build/projects/gmake-linux-clang                                                                                                                                                                           
sed -i .build/projects/gmake-linux-clang/*.make -e 's:^AR.*=.*ar:AR = llvm-ar:g'              

GENie seems to properly process the linux-clang argument, but fails to switch ar to llvm-ar. so there may be a small change necessary in GENie.

btw cmake is really good - if you ever feel tired to support GENie... :)

I tried the cmake output option for GENie in order to check if I can use cmake's clang support. The CMakeLists don't contain anything to build.

[lavyadrian]

Please can you explain a bit more how to build the latest bgfx with clang on linux? I am using clang 15, and GENie makefiles from the bgfx repo doesn't seem to have linux-clang option, plus I have no idea what you did up there :) as I am too used to cmake. Thanks in advance.

[bkaradzic]

https://github.com/bkaradzic/bx/blob/d6576889dd1d152d5eed8c46a2ea87e64a7c848e/scripts/toolchain.lua#L61

genie --gcc=linux-clang gmake

[lavyadrian]

Thanks a lot!