[Bug lto/91287] LTO disables linking with scalar MASS library (Fortran only)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91287

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

           What    |Removed                     |Added
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                 CC|                            |hjl.tools at gmail dot com

--- Comment #18 from Richard Biener <rguenth at gcc dot gnu.org> ---
So the linker issue would be that during computing of the resolution when the
linker decides a whole archive isn't necessary it doesn't re-consider it for
the final actual link (which is where GCC exposes the atan2 UNDEF).  Instead it
happily resolves it to libm which libgfortran drags in?  For C and without -lm
it doesn't find it and thus _does_ re-consider the previously unused -lmass.
I would have expected the link to fail with an unresolved symbol - so the
behavior is at least inconsistent.