On 2024-03-12 19:24, Grisha Levit wrote:
- AC_COMPILE_IFELSE(
+ AC_RUN_IFELSE(
This sort of change would break cross-compilation, no?
How about leaving it AC_COMPILE_IFELSE, but ensuring that -O1 or better
is used when the compiler supports -O1? That way we don't have to worry
about running the program, because (with the "volatile") clang will
error out.
Alternatively perhaps there's some way to check for the bug using
preprocessor macros like __FLT16_MANT_DIG__, __FLT16_MAX_EXP__,
__clang_major__, and __aarch64__. (This could be more fragile, though,
as clang presumably will fix the bug eventually.)
