package/libcamera: add optional lttng-libust dependency

Add optional lttng-libust support and enable tracing support
in case.

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libcamera/libcamera.mk

@@ -18,7 +18,6 @@ LIBCAMERA_CONF_OPTS = \
 	-Dandroid=disabled \
 	-Ddocumentation=disabled \
 	-Dtest=false \
-	-Dtracing=disabled \
 	-Dwerror=false
 LIBCAMERA_INSTALL_STAGING = YES
 LIBCAMERA_LICENSE = \
@@ -86,4 +85,11 @@ ifeq ($(BR2_PACKAGE_HAS_UDEV),y)
 LIBCAMERA_DEPENDENCIES += udev
 endif
 
+ifeq ($(BR2_PACKAGE_LTTNG_LIBUST),y)
+LIBCAMERA_CONF_OPTS += -Dtracing=enabled
+LIBCAMERA_DEPENDENCIES += lttng-libust
+else
+LIBCAMERA_CONF_OPTS += -Dtracing=disabled
+endif
+
 $(eval $(meson-package))