Am 16.11.2020 um 08:55 schrieb Allan Sandfeld Jensen:
On Montag, 16. November 2020 02:53:14 CET Thiago Macieira wrote:
On Sunday, 15 November 2020 08:29:56 PST Thiago Macieira wrote:
* whether there is any chance to get a fix or workaround in the near
future
(or even right now), either in the form of an upgrade to the vendor
compiler or in the form of a third-party compiler (e.g., GCC or Clang,
which both support many platforms).
Probably no chance.
Sorry, by that I meant to say "no chance of getting a fix in", since it
depends on fixing the Microsoft STL and I don't expect they're very
interested. Their first and foremost priority is the VC++ compiler.
But the second part of your proposal is easy: use either cl or gcc or clang
(with either libstdc++ or libc++), two combinations of which are supported
by Qt on Windows and I wouldn't be surprised if the rest using those
compilers also worked.
✓ VC++ with MS STL (officially supported)
✓ gcc with libstdc++ (officially supported)
❓ gcc with libc++ (likely works)
I doubt anyone ever tests this combo though.
❓ clang with libstdc++ (likely there are people using)
❓ clang with libc++ (likely works)
Is used for fuzzing builds, so I assume actively tested outside our
integration.
Indeed. Builds for fuzzing can be done without it, but Google's oss-fuzz
uses clang 12.0.0 with flag "-stdlib=libc++".
This works fine in 5.15. I don't know about 6.0 yet. I get build errors
there, but I don't know if they're related to this.
Cheers,
Robert
✗ clang-cl with MS STL (currently broken)
It is? I often use this when building qtwebengine for Windows. Been advocating
for an automated test for a while.
❓❓ clang-cl with libc++ (no clue)
You mean clang? Clang-cl.exe is the MSVC compatible clang version, and
clang.exe the "gcc" (crossplatform clang) compatible. Which I assume also
means thereis clang.exe with libstdc++ for mingw compatible builds.
'Allan
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