[Bug libfortran/94694] [10 Regression][libgfortran] libgfortran does not compile on bare-metal aarch64-none-elf (newlib)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94694

--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Thus, I think we can extend the patch I've attached (and fix the two fmaf to
fmal spots), plus do the HAVE_INLINE_BUILTIN_* in configure.ac either through a
config/math.m4 macro, or through a loop over the functions that can have such
treatment with a likely inlined implementation.

But still, the trig*.inc needs to check HAVE_* macros of everything that it
uses and just don't provide the definitions if it can't be implemented.