https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61441
Thomas Preud'homme <thopre01 at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |thopre01 at gcc dot gnu.org --- Comment #12 from Thomas Preud'homme <thopre01 at gcc dot gnu.org> --- I encountered the same issue (undefined reference to `issignaling') on arm-none-eabi which is due to newlib's math.h not providing the issignaling macro so this should be reported against newlib.