Merge pull request #7589 from cotequeiroz/opencv_no-gtk

opencv: remove gtk dependency

libs/opencv/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=opencv
 PKG_VERSION:=3.1.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).zip
 PKG_SOURCE_URL:=http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/$(PKG_VERSION)/
@@ -51,6 +51,7 @@ CMAKE_OPTIONS += -DBUILD_opencv_gpu:BOOL=OFF \
 	-DWITH_GSTREAMER:BOOL=OFF \
 	-DWITH_LIBV4L:BOOL=OFF \
 	-DWITH_PNG:BOOL=OFF \
+	-DWITH_GTK:BOOL=OFF \
 	-DWITH_TIFF:BOOL=OFF \
 	-DCMAKE_VERBOSE:BOOL=OFF \
 	-DENABLE_PRECOMPILED_HEADERS=OFF