How do you disable multithreading?

[makorendev]

I want to disable multithreading to get around the issue in #2036, since I'm just trying to learn C and bgfx and don't care about performance. But I can't figure out how to disable multithreading with the BGFX_CONFIG_MULTITHREADED flag, and I can't find any answers online. There is a section in the docs about using the compiler options, but it doesn't describe how you use them to change this flag.

[bkaradzic]

BGFX_CONFIG_MULTITHREADED=0

[makorendev]

But where do I put this?

[bkaradzic]

In your build config / compiler options...

[makorendev]

I've tried a few things:

• make osx-x64-debug BGFX_CONFIG_MULTITHREADED=0 when building bgfx
• Adding BGFX_CONFIG_MULTITHREADED=0 to my preprocessor macros in Xcode
• Adding -DBGFX_CONFIG_MULTITHREADED=0 to "other C flags" in Xcode

None of these work, bgfx still starts in multithreaded mode.

[bkaradzic]

See how it's done for --with-glfw GENie argument:

bgfx/scripts/bgfx.lua

Lines 104 to 108 in dcf926f

	if _OPTIONS["with-glfw"] then
	defines {
	"BGFX_CONFIG_MULTITHREADED=0",
	}
	end

[makorendev]

That works! I was able to use the GENie script by using the following command in the bgfx folder:

../bx/tools/bin/darwin/genie --gcc=osx-x64 --with-glfw gmake

(I just happened to be using GLFW so this is what I want)

Then I built the libraries by going to .build/projects/gmake-osx-x64 and running make. Now multithreading is disabled.