Re: Build-break in libstdc++-v3 at r14-1442-ge1240bda3e0bb1 for non-float128 targets

[Jonathan Wakely <jwakely@redhat.com>]

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On Wed, 31 May 2023 at 16:29, Hans-Peter Nilsson via Libstdc++ <
libstdc++@gcc.gnu.org> wrote:

> Since I don't see a quick fix at r14-1444-g3f4853a5f00fab, I
> thought I'd better notify the author (I have written authors
> if there was more than one ;-) of suspect commits in the
> range r14-1425-g80ee7d02e8db48..e1240bda3e0b for the
> build-break at r14-1442-ge1240bda3e0bb1 for cris-elf, where
> I get:
>
> /x/gcc/libstdc++-v3/src/c++17/floating_from_chars.cc:1330:47: error:
> '_Float128' is not supported on this target
>  1330 | from_chars(const char* first, const char* last, _Float128& value,
>       |                                               ^
>

Sorry, I'll fix or revert it today.



> /x/gcc/libstdc++-v3/src/c++17/floating_from_chars.cc:1330:49: error:
> expected identifier before '_Float128'
>  1330 | from_chars(const char* first, const char* last, _Float128& value,
>       |                                                 ^~~~~~~~~
> /x/gcc/libstdc++-v3/src/c++17/floating_from_chars.cc:1330:49: error:
> '_Float128' is not supported on this target
> /x/gcc/libstdc++-v3/src/c++17/floating_from_chars.cc:1330:49: error:
> expected ',' or '...' before '_Float128'
> /x/gcc/libstdc++-v3/src/c++17/floating_from_chars.cc: In function
> 'std::from_chars_result std::from_chars(const char*, const char*, int)':
> /x/gcc/libstdc++-v3/src/c++17/floating_from_chars.cc:1340:53: error: 'fmt'
> was not declared in this scope; did you mean 'fma'?
>  1340 |   auto res = std::from_chars(first, last, ldbl_val, fmt);
>       |                                                     ^~~
>       |                                                     fma
> /x/gcc/libstdc++-v3/src/c++17/floating_from_chars.cc:1342:5: error:
> 'value' was not declared in this scope
>  1342 |     value = ldbl_val;
>       |     ^~~~~
> make[5]: *** [Makefile:587: floating_from_chars.lo] Error 1
>
> brgds, H-P
>
>