mjpegtools: uses fork(), needs mmu

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

package/mjpegtools/Config.in

@@ -1,6 +1,7 @@
 config BR2_PACKAGE_MJPEGTOOLS
 	bool "mjpegtools"
 	select BR2_PACKAGE_JPEG
+	depends on BR2_USE_MMU # fork
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	help
@@ -12,4 +13,5 @@ config BR2_PACKAGE_MJPEGTOOLS
 	  http://mjpeg.sourceforge.net
 
 comment "mjpegtools needs a toolchain w/ C++, threads"
+	depends on BR2_USE_MMU
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS