Hello, I'm noticing some issues with libstdc++ after building GCC from
sources and installing into /opt/gcc-14.1.0. Specifically:
$ objdump -x /opt/gcc-14.1.0/lib/libstdc++.so.6 | grep RUNPATH
$ ldd /opt/gcc-14.1.0/lib/libstdc++.so.6
/opt/gcc-14.1.0/lib/libstdc++.so.6:
libm.so.5 => /lib/l
On 5/28/24 11:27, Jason Merrill wrote:
AC_PROG_CXX_STDCXX_EDITION_TRY still looks useful for a project that
relies on features from a particular standard.
It's called "_AC_PROG_CXX_STDCXX_EDITION_TRY" with a leading underscore,
which means it's private to Autoconf and apps shouldn't (and I thi
On Tue, May 28, 2024 at 12:49 PM Paul Eggert wrote:
>
> On 2024-05-28 08:02, Jakub Jelinek wrote:
> > even for C GCC updates the default
>
> True, but C seems to be different, in that using a later-than-default
> -std=whatever is more likely to help than hurt, because the C
> standardization folks
On 2024-05-28 08:02, Jakub Jelinek wrote:
even for C GCC updates the default
True, but C seems to be different, in that using a later-than-default
-std=whatever is more likely to help than hurt, because the C
standardization folks are more careful about compatibility. That's what
I've been e
On Tue, 28 May 2024, Jakub Jelinek via Gcc wrote:
> -std=gnu23 support is still incomplete even in GCC 14.
It doesn't involve ABI issues, however, unlike C++, so using the option
with GCC 14 is comparatively safe. (It might run into a few aliasing bugs
related to tag compatibility right now, b
On Tue, May 28, 2024 at 10:36 AM Paul Eggert wrote:
>
> On 2024-05-28 01:20, Jonathan Wakely wrote:
> > I am not aware of any distro ever changing the default -std setting for g++
> > or clang++. Are you attempting to solve a non-problem, but introducing new
> > ones?
>
> If it's a non-problem for
On Tue, May 28, 2024 at 07:35:43AM -0700, Paul Eggert wrote:
> On 2024-05-28 01:20, Jonathan Wakely wrote:
> > I am not aware of any distro ever changing the default -std setting for g++
> > or clang++. Are you attempting to solve a non-problem, but introducing new
> > ones?
>
> If it's a non-prob
On 2024-05-28 01:20, Jonathan Wakely wrote:
I am not aware of any distro ever changing the default -std setting for g++
or clang++. Are you attempting to solve a non-problem, but introducing new
ones?
If it's a non-problem for C++, why does Autoconf upgrade to C++11 when
the default is C++98?
On Tue, 28 May 2024, 02:51 Paul Eggert, wrote:
> On 2024-05-27 12:18, Jakub Jelinek wrote:
> > Maybe respect the carefully chosen compiler default (unless explicitly
> > overridden in configure.ac)?
>
> Autoconf gave up on that idea long ago, as we had bad experiences with
> compiler defaults bei
On Tue, 28 May 2024, 07:24 Florian Weimer via Gcc, wrote:
> * Paul Eggert:
>
> > On 2024-05-27 03:35, Florian Weimer wrote:
> >> Does this turn on experimental language modes by default? That's
> >> probably not what we want.
> >
> > What do C++ developers want these days? Autoconf should have a
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