For some reason I had a compile error on commit cbdf6b32c3f21ea90b231c3c2a6fbf75eedcf759:
sgminer.c: In function write_config:
sgminer.c:4352:20: error: X13MODOLD_KERNNAME undeclared (first use in this function)
I'm comlile, works fine. 280x + 7870 + 7850 + 5670
"kernel" : "x13mod,x13mod,x13mod,x13modold",
https://www.dropbox.com/s/lrcpu7bnxqhvd5f/sph-sgminer_x11mod.zip