Update windows build instructions.
diff --git a/windows-build.txt b/windows-build.txt
index 13cbf3d..7fcd0af 100644
--- a/windows-build.txt
+++ b/windows-build.txt
@@ -230,8 +230,7 @@ Another way is to type "cd libusb" and then press the tab key; It will auto fill
Type the lines below one at a time. Look for problems after each one before going on
to the next.
-./autogen.sh --disable-debug-log
-./configure --prefix=/MinGW
+./autogen.sh --disable-debug-log --prefix=/MinGW
make
make install