vlc: fix live555 support

vlc looks for a *.pc file which is not provided by the live555 package.
So, instead, we explicitly set the LIVE555_CFLAGS and LIVE555_LIBS
variables.

Fixes:
  http://autobuild.buildroot.org/results/b59/b5972ecad4e5004dc23a2366066ce45346994f58/build-end.log

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/vlc/vlc.mk

@@ -194,6 +194,15 @@ endif
 ifeq ($(BR2_PACKAGE_LIVE555),y)
 VLC_CONF_OPT += --enable-live555
 VLC_DEPENDENCIES += live555
+VLC_CONF_ENV = \
+	LIVE555_CFLAGS="\
+		-I$(STAGING_DIR)/usr/include/live \
+		-I$(STAGING_DIR)/usr/include/live/BasicUsageEnvironment \
+		-I$(STAGING_DIR)/usr/include/live/groupsock \
+		-I$(STAGING_DIR)/usr/include/live/liveMedia \
+		-I$(STAGING_DIR)/usr/include/live/UsageEnvironment \
+		" \
+	LIVE555_LIBS="-L$(STAGING_DIR)/usr/lib -lliveMedia"
 else
 VLC_CONF_OPT += --disable-live555
 endif