On 27/07/2023 12.39, Daniel P. Berrangé wrote:
On Wed, Jul 26, 2023 at 08:21:33PM +0200, Thomas Huth wrote:
On 26/07/2023 18.19, Daniel P. Berrangé wrote:
...
Anyway, before we unify the compiler package name suffix between the two
jobs, I really would like to see whether the mingw Clang builds QEMU faster
in the 64-bit job ... but so far I failed to convince meson to accept the
Clang from the mingw package ... does anybody know how to use Clang with
MSYS2 properly?
AFAIK it shouldn't be anything worse than
CC=clang ./configure ....
if that doesn't work then its a bug IMHO
No, it's not that easy ... As Marc-André explained to me, MSYS2 maintains a
completely separate environment for Clang, i.e. you have to select this
different environment with $env:MSYSTEM = 'CLANG64' and then install the
packages that have the "mingw-w64-clang-x86_64-" prefix.
After lots of trial and error, I was able to get a test build here:
https://gitlab.com/thuth/qemu/-/jobs/4758605925
I had to disable Spice and use --disable-werror in that build to make it
succeed, but at least it shows that Clang seems to be a little bit faster -
the job finished in 58 minutes. So if we can get the warnings fixed, this
might be a solution for the timeouts here...
Thomas
