muscle: Add TODO: enable threading for devel package
muscle: Add TODO: enable threading for devel package

We can't use it yet to build BeShare.

haikuports/haikuports,haikuports/haikuports,moochris/haikuports,haikuports/haikuports,nielx/haikuports,Begasus/haikuports,koletzky/haikuports,moochris/haikuports,haikuports/haikuports,koletzky/haikuports,haikuports/haikuports,miqlas/haikuports,Begasus/haikuports,miqlas/haikuports,Begasus/haikuports,miqlas/haikuports,moochris/haikuports,nielx/haikuports,koletzky/haikuports,nielx/haikuports,Begasus/haikuports,Begasus/haikuports