Re: [PATCH] libstdc++: testsuite: Simplify codecvt_unicode

[Jonathan Wakely <jwakely@redhat.com>]

On Wed, 18 Jan 2023 at 19:52, Dimitrij Mijoski wrote:
>
> On Wed, 2023-01-18 at 18:53 +0000, Jonathan Wakely wrote:
> > This doesn't compile in C++11 or C++14, because there's no guaranteed
> > elision.
>
> I see. I just looked up in the docs and found that I need to put
> --target_board=unix/-std=c++11 inside RUNTESTFLAGS to test in C++11
> mode.

That's right. I have multiple options used by default, via ~/.dejagnurc

$ cat ~/.dejagnurc
# Need to test if $tool exists prior to the r11-551 change.
if { [info exists tool] && "$tool" == "libstdc++" } {
global tool_timeout
set tool_timeout 50
puts "dejagnu - timeout default set to ${tool_timeout}s"
set target_list {
"unix{,-D_GLIBCXX_USE_CXX11_ABI=0,-std=gnu++2b,-std=gnu++11}" }
}

This makes the testsuite take four times as long, but increases
coverage and finds issues like this one. As long as somebody runs the
extended list of options now and then, we don't need them to all be
run for everybody.