"Invalid instruction mnemonic" build failure(s) — clang 3.1

PackageVersionSupposed error messageFull log Bug report
openblas 0.1.1-4../kernel/x86_64/amax.S:67:2: error: invalid instruction mnemonic 'ffreep' Log
pygame 1.9.1release+dfsg-6src/scale_mmx64.c:424:27: error: invalid instruction mnemonic 'movsxl' Log 812717

2 errors