On 01/07/2015 04:57 PM, Cyd Haselton wrote: > Adding -fno-lto to CFLAGS in the 4.9 libgcc Makefile worked. > Libgcc_s.so built and linked successfully. I will add this to my list > of build notes Ah, good. That was a very, very difficult thing to debug because the runtime error from fakechroot looked so much like a linker error, even to the point of producing the same error message. It's probably the hairiest thing I've ever helped debug on gcc-help. > Thanks everyone for all of your help and patience. Anything else you > need from me? It's be nice to see if you can do a clean build with the --disable-lto configure option. Then we can think about how to auto-disable it in the gcc configury. Andrew.