I loaded the toolchain, as detailed in the Genode on Fiasco.OC site and 
when I built the L4Re environment I got this:
   ==> Installing crti.o to local build-tree
   ... Compiling crtn.o
initfini.c: Assembler messages:
initfini.c:29: Error: .size expression for _init does not evaluate to a 
constant
initfini.c:29: Error: .size expression for _fini does not evaluate to a 
constant
make[3]: *** [crtn.o] Error 1
make[3]: Leaving directory 
`/home/wegrzyn/Fiasco/L4re-build/pkg/ldscripts/OBJ-x86_core2'
make[2]: *** 
[/home/wegrzyn/Fiasco/L4re-build/pkg/ldscripts/OBJ-x86_core2] Error 2
make[2]: Leaving directory `/home/wegrzyn/Fiasco/src/l4/pkg/ldscripts'
make[1]: *** [ldscripts] Error 2
make[1]: Leaving directory `/home/wegrzyn/Fiasco/src/l4/pkg'
make: *** [pkg] Error 2
Can anyone venture a guess what I need to correct?
Peace,
Chance