https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119408
--- Comment #26 from Xi Ruoyao <xry111 at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #24) > Maybe, but probably we need a whitelist or blacklist. > Because e.g. powerpc64le-linux I guess wants libquadmath because it > historically has been using it and long double depending on configuration > sometimes is and sometimes is not IEEE quad. > So maybe safer will be something along the lines of #c16, just with better > wording of the comment (and for libquadmath too). > Basically, we don't want to have libquadmath on targets which always have > long double IEEE quad and where libquadmath wasn't used in the past. Or for now just #error if __loongarch__ at these two places? I suppose in the future (at lease, GCC 16 stage 1) we might provide a quadmath.h which just redirect sinq, cosq, etc to sinl, cosl, etc. and an empty libquadmath.a on such targets to support those code assuming libquadmath.
