[FFmpeg-devel] [PATCH] configure: Fix Microsoft tools detection

[Martin Storsjö]

Hi,

On Sat, 22 Jan 2022, Kacper Michajłow wrote:

> LLVM tools print installation path upon execution. If one uses LLVM
> tools bundled with Microsoft Visual Studio installation, they would be
> incorrectly detected as Microsoft's ones.
>
> Signed-off-by: Kacper Michajłow <kasper93 at gmail.com>
> ---
> configure | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)

While the patch description seems to make sense, I wanted to try it out to 
see the practical effect for myself, and I fail to observe any difference.

Can you provide your exact configure command line you use, where it makes 
a difference? I tried with "--cc=clang-cl --ld=lld-link --toolchain=msvc" 
and that works just as fine before this patch.

In particular, the commands that you adjust run "$_cc -nologo-" and grep 
for "Microsoft" in the output of that. When I run that with clang-cl, it 
doesn't print a string containing "Microsoft".

// Martin