mjpegtools: add optional support for png/sdl/sdl_gfx/X11/gtk2

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mjpegtools/mjpegtools.mk

@@ -10,4 +10,47 @@ MJPEGTOOLS_DEPENDENCIES = host-pkgconf jpeg
 MJPEGTOOLS_LICENSE = GPLv2+
 MJPEGTOOLS_LICENSE_FILES = COPYING
 
+ifeq ($(BR2_PACKAGE_LIBPNG),y)
+MJPEGTOOLS_CONF_OPTS += --with-libpng
+MJPEGTOOLS_DEPENDENCIES += libpng
+else
+MJPEGTOOLS_CONF_OPTS += --without-libpng
+endif
+
+# expects X11 backend in sdl
+ifeq ($(BR2_PACKAGE_SDL_X11),y)
+MJPEGTOOLS_CONF_OPTS += --with-libsdl
+MJPEGTOOLS_DEPENDENCIES += sdl
+else
+MJPEGTOOLS_CONF_OPTS += --without-libsdl
+endif
+
+ifeq ($(BR2_PACKAGE_SDL_GFX),y)
+MJPEGTOOLS_CONF_OPTS += --with-sdlgfx
+MJPEGTOOLS_DEPENDENCIES += sdl_gfx
+else
+MJPEGTOOLS_CONF_OPTS += --without-sdlgfx
+endif
+
+ifeq ($(BR2_PACKAGE_XLIB_LIBX11),y)
+MJPEGTOOLS_CONF_OPTS += --with-x
+MJPEGTOOLS_DEPENDENCIES += xlib_libX11
+else
+MJPEGTOOLS_CONF_OPTS += --without-x
+endif
+
+ifeq ($(BR2_PACKAGE_XLIB_LIBXXF86DGA),y)
+MJPEGTOOLS_CONF_OPTS += --with-dga
+MJPEGTOOLS_DEPENDENCIES += xlib_libXxf86dga
+else
+MJPEGTOOLS_CONF_OPTS += --without-dga
+endif
+
+ifeq ($(BR2_PACKAGE_LIBGTK2),y)
+MJPEGTOOLS_CONF_OPTS += --with-gtk
+MJPEGTOOLS_DEPENDENCIES += libgtk2
+else
+MJPEGTOOLS_CONF_OPTS += --without-gtk
+endif
+
 $(eval $(autotools-package))