https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112963
--- Comment #3 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Andreas Schwab from comment #1) > How did that work before r14-4825-g6a6d3817afa02b? I suppose, unconditional adding of '-lm' is not a problem to the affected bare metal targets but using the AC_CHECK_LIBM is, I still have to set up to do the testing.