[Bug libquadmath/111928] [14 Regression] Build broken for baremetal targets after r14-4825-g6a6d3817afa02b

[dimitar at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111928

--- Comment #4 from Dimitar Dimitrov <dimitar at gcc dot gnu.org> ---
If I remove the "AC_CHECK_LIBM" line from libquadmath/configure.ac, and
re-generate autoconf there, then the build passes.

I don't understand why that line was added. Just a few lines below I see checks
for specific functions from libm.