[Bug modula2/113511] lack of libm2 ABI compatibility on powerpc platforms

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113511

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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             Target|                            |powerpc*
           Keywords|                            |ABI

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
There's also the question on compatibility to libgm2 from GCC 13.

I suppose the frontend could simply not allow changing the M2 language
"long double" (however it is called) with -mabi=... (which really only
change the C language ABI!).  Of course calls to libm are subject to the
C language ABI.

Does the language standard have anything to say here?  I suppose there's
no ABI documents for M2 for various targets, so eventually C interoperability
language in the standard directs at the common sense?