Rename the DLL entry point the avoid duplicated symbols in static
links.
libgstd3dvideosink_la_LIBADD = $(GST_BASE_LIBS) $(GST_PLUGINS_BASE_LIBS) \
-lgstvideo-$(GST_API_VERSION) \
$(DIRECT3D_LIBS)
-libgstd3dvideosink_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(DIRECTX_LDFAGS)
+libgstd3dvideosink_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(DIRECTX_LDFAGS) -e D3dDllMain
libgstd3dvideosink_la_LIBTOOLFLAGS = --tag=disable-static
noinst_HEADERS = d3dvideosink.h directx/directx_d3d.h directx/dx.h directx/directx.h \