Update acinclude.m4
Update acinclude.m4

Add i386 path for glib - if anyone knows how to make it auto-handle deciding which platform and therefore which platform specific path, please improve this. Better yet, work out why the platform specific path is needed and avoid that nastiness.
timfel/squeakvm,peteruhnak/pharo-vm,OpenSmalltalk/vm,OpenSmalltalk/vm,peteruhnak/pharo-vm,bencoman/pharo-vm,bencoman/pharo-vm,bencoman/pharo-vm,bencoman/pharo-vm,peteruhnak/pharo-vm,peteruhnak/pharo-vm,timfel/squeakvm,timfel/squeakvm,bencoman/pharo-vm,timfel/squeakvm,OpenSmalltalk/vm,bencoman/pharo-vm,peteruhnak/pharo-vm,OpenSmalltalk/vm,timfel/squeakvm,timfel/squeakvm,bencoman/pharo-vm,peteruhnak/pharo-vm,timfel/squeakvm,OpenSmalltalk/vm,timfel/squeakvm,OpenSmalltalk/vm,OpenSmalltalk/vm,peteruhnak/pharo-vm,OpenSmalltalk/vm,bencoman/pharo-vm,peteruhnak/pharo-vm,bencoman/pharo-vm