libv4l: needs thread support

Fixes:

  http://autobuild.buildroot.org/results/c74/c741ca445a63ce9ab8b0e5b87f3126d7b6051009/build-end.log

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/libv4l/Config.in

@@ -1,6 +1,7 @@
 config BR2_PACKAGE_LIBV4L
 	bool "libv4l"
 	depends on BR2_LARGEFILE
+	depends on BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_PACKAGE_JPEG
 	help
 	  libv4l is an accompanying collection of libraries that adds a thin
@@ -58,5 +59,5 @@ comment "v4l2-dbg requires a toolchain with C++ support enabled"
 
 endif
 
-comment "libv4l requires a toolchain with LARGEFILE support"
-        depends on !BR2_LARGEFILE
+comment "libv4l requires a toolchain with LARGEFILE and thread support"
+        depends on !BR2_LARGEFILE || !BR2_TOOLCHAIN_HAS_THREADS

package/opencv/Config.in

@@ -182,12 +182,13 @@ config BR2_PACKAGE_OPENCV_WITH_TIFF
 config BR2_PACKAGE_OPENCV_WITH_V4L
 	bool "v4l support"
 	depends on BR2_LARGEFILE
+	depends on BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_PACKAGE_LIBV4L
 	help
 	  Enable Video 4 Linux support.
 
-comment "v4l support requires a toolchain with LARGEFILE support"
-	depends on !BR2_LARGEFILE
+comment "v4l support requires a toolchain with LARGEFILE and thread support"
+	depends on !BR2_LARGEFILE || !BR2_TOOLCHAIN_HAS_THREADS
 
 comment "Install options"