CONFIGURE: Enable plugins support for mingw64

Until now, the configure script was unable to detect mingw64
as a platform that supports building plugins.

I tested this with MSYS2/mingw64 and was able to build all
engines dynamically. I opted not to use any wildcards for this
entry, because I don't know which variants are possible here.

1 files changed, 1 insertions, 1 deletions

diff --git a/configure b/configure
index 25dd8ca7d5..be6f663b4b 100755
--- a/configure
+++ b/configure
@@ -3647,7 +3647,7 @@ PRE_OBJS_FLAGS  := -Wl,-export-dynamic -Wl,-whole-archive
 POST_OBJS_FLAGS := -Wl,-no-whole-archive
 '
 		;;
-	*mingw32*)
+	*mingw32* | mingw64)
 		_plugin_prefix=""
 		_plugin_suffix=".dll"
 _mak_plugins='