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From: "gr.audio at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/80196] fenv_t not declared
Date: Fri, 18 Jun 2021 19:44:43 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D80196

Guillaume <gr.audio at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gr.audio at gmail dot com

--- Comment #7 from Guillaume <gr.audio at gmail dot com> ---
Same problem while trying to build gcc 11.1.0 on Arch Linux (host and targe=
t =3D
Windows).

Configuration:

configure --host=3Dx86_64-w64-mingw32 --target=3Dx86_64-w64-mingw32
--prefix=3D"$PREFIX" --disable-nls --enable-languages=3Dc,c++,ada
--with-pkgversion=3DGR20210618 --enable-threads=3Dwin32 --disable-win32-reg=
istry
--disable-multilib --enable-shared --enable-static --disable-sjlj-exceptions
--with-dwarf2

Adding the '--disable-libstdcxx-pch' option doesn't help in my case, same
errors.

The cross-compiler installed on my Arch Linux for building Windows executab=
les
is x86_64-w64-mingw32-gcc.

'x86_64-w64-mingw32-gcc -v' yields:

Utilisation des specs internes.
COLLECT_GCC=3Dx86_64-w64-mingw32-gcc
COLLECT_LTO_WRAPPER=3D/usr/lib/gcc/x86_64-w64-mingw32/11.1.0/lto-wrapper
Cible : x86_64-w64-mingw32
Configur=C3=A9? avec: /build/mingw-w64-gcc/src/gcc/configure --prefix=3D/usr
--libexecdir=3D/usr/lib --target=3Dx86_64-w64-mingw32
--with-bugurl=3Dhttps://bugs.archlinux.org/
--enable-languages=3Dc,lto,c++,ada,objc,obj-c++,fortran --enable-shared
--enable-static --enable-threads=3Dposix --enable-fully-dynamic-string
--enable-libstdcxx-time=3Dyes --enable-libstdcxx-filesystem-ts=3Dyes
--with-system-zlib --enable-cloog-backend=3Disl --enable-lto --enable-libgo=
mp
--disable-multilib --enable-checking=3Drelease --disable-sjlj-exceptions
--with-dwarf2
Mod=C3=A8?le de thread: posix
Algorithmes de compression LTO support=C3=A9?s: zlib zstd
gcc version 11.1.0 (GCC)=