# -O3 causes segfaults
replace-flags -O3 -O2
filter-flags -fomit-frame-pointer
filter-flags -msse2
emake -f GNUmakefile CXXFLAGS="${CXXFLAGS}" || die
emake -f GNUmakefile CXXFLAGS="-mno-sse2 ${CXXFLAGS}" || die
}