[Bug libfortran/94586] trigd_lib.inc:84:28: error: implicit declaration of function 'fmaf'

[dave.anglin at bell dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94586

--- Comment #35 from dave.anglin at bell dot net ---
On 2020-04-22 12:27 p.m., sgk at troutmask dot apl.washington.edu wrote:
> I suspect that having HPUX map 
>
> REAL(4)  <--> float       ! f suffix
> REAL(8)  <--> double      ! no suffix
> REAL(16) <--> __float128  ! q suffix
>
> may cause issues with either ISO C binding or IEEE 754 module 
> or both.
Why?  It's what HP did?

On ia64, libm contains a full quad implementation with q suffix.  Both l and w
sufixes are used
with 80-bit floating types (long double and double extended).

Many targets have double and long double both mapped to  the same 64-bit
floating type.

So, I don't see why long double and __float128 can't be mapped to the same
128-bit floating type.
It's been that way for years.