mingw: Add --enable-deprecated to the recommended build flags
mingw: Add --enable-deprecated to the recommended build flags

The version of Pango that the script downloads is using G_CONST_RETURN
in the public headers. This won't build if G_DISABLE_DEPRECATED is
enabled so instead the build script now just recommends to pass
--enable-deprecated to cogl's configure script.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 4715f0f01d4de55a9cf690f52d4da211c243565b)

Distrotech/cogl,Distrotech/cogl,Distrotech/cogl,Distrotech/cogl