On Sat, Jun 24, 2017 at 04:03:49PM +0200, Kamil Rytarowski wrote: > arch/sparc64/c++config.h:/* #undef _GLIBCXX_USE_FLOAT128 */
Something is definitively strange here (as Joerg noted). We use 128 bit long doubles via softfloat on sparc64. We should actually offer the hardfloat version too and fix all fallout from the emulator (if there are any left), but last tests showed this to be slower. > SYSV ABI AMD64 notes float128 optionally and software emulated for at > least order hardware. What amd64 cpus support it in hardware (or which of the strange feature bit acronyms matches it)? Of course we can not make the library features depend on runtime cpu support detection. Martin
