Re: [PATCH] Merge glibc ieee128 ldbl redirect support into cdefs.h

[Bruno Haible]

Hi,

Paul Murphy wrote in
<https://lists.gnu.org/archive/html/bug-gnulib/2020-12/msg00106.html>:
> While trying to build gdb with ldbl == ieee128 on ppc64le, we found out
> gnulib's copy of cdefs.h needs to be synchronized with upstream glibc.
> 
> The only notable divergence is to ensure
> __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI is always defined as this macro is
> fairly recent.

Why would this be needed? Nothing in Gnulib uses this macro.
The cdefs.h of Gnulib is meant to be a minimal replacement (you can also
call it a "mock") of the one in Glibc.

Can you show the error message you got when compiling gdb, and how
you traced it back to a Gnulib issue?

Bruno