win64: Add Ubuntu's mingw compiler prefix

diff --git a/win64/find-mingw64.sh b/win64/find-mingw64.sh
index 6b620c8..68bb9b6 100755 (executable)
--- a/win64/find-mingw64.sh
+++ b/win64/find-mingw64.sh
@@ -12,6 +12,7 @@ for prefix in \
     x86_64-mingw64msvc- \
     x86_64-mingw32- \
     x86_64-mingw32msvc- \
+    amd64-mingw32msvc- \
     ; do
     if "${prefix}${cc}" -v > /dev/null 2>&1; then
        echo "$prefix"