Created attachment 403880 [details]
Builds with 4.9.2.
how about 1.0.2 ? i expect that'll go stable before gcc-5.1, and you should generally be building ~arch w/gcc-5.1, not stable.
fix might be to add -P to the `gcc -E` line when generating the .s file.
Oh, indeed -- 1.0.2a compiles fine. Sorry for the noise!