[FFmpeg-devel] [PATCH] fix(configure): fix detection on windows

[Coia Prant]

On Windows Arm64
`uname -m` returned `x86_64` instead of `aarch64`
Link: https://github.com/msys2/msys2-runtime/issues/171

On x86 32-bit toolchain msys2 environment
`uname -m` returned `x86_64` instead of `i686` or `x86`

So check MSYSTEM_CARCH on windows (for arm64 and i686)

This problem also in VideoLAN/x264
Link: https://code.videolan.org/videolan/x264/-/merge_requests/177

Signed-off-by: Coia Prant <coiaprant at gmail.com>
---
 configure | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configure b/configure
index 2e69b3c..ed30b6b 100755
--- a/configure
+++ b/configure
@@ -4157,6 +4157,8 @@ if test "$target_os_default" = aix; then
     arch_default=$(uname -p)
     strip_default="strip -X32_64"
     nm_default="nm -g -X32_64"
+elif test "$MSYSTEM_CARCH" != ""; then
+    arch_default="$MSYSTEM_CARCH"
 else
     arch_default=$(uname -m)
 fi
-- 
2.49.0.windows.1