From 5ef632ccb8d1a5b48eb1cc0d6e789585995309d8 Mon Sep 17 00:00:00 2001
From: JochiPochi <john.aleman@cyphyworks.com>
Date: Wed, 13 Jul 2016 11:35:10 -0400
Subject: [PATCH] urdfdom-headers: Fix missing package

Bitbake gives a dependency error when IMAGE_FEATURES += " dev-pkgs" is set.

This is because the urdfdom-headers package contains headers only, as a
result bitbake packages them into urdfdom-headers-dev and leaves
urdfdom-headers empty.

Since there are no files to be packaged into urdfdom-headers bitbake
doesn't create the package. urdfdom-headers is a dependency
of urdfdom-headers-dev by default so bitbake errors when building an image
with dev-pkgs enabled.

ALLOW_EMPTY tells bitbake to create a package even when nothing is in it.
This resolves the dependency issue of urdfdom-headers-dev
http://www.embeddedlinux.org.cn/OEManual/recipes_packages.html
---
 recipes-ros/urdfdom-headers/urdfdom-headers_0.3.0.bb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/recipes-ros/urdfdom-headers/urdfdom-headers_0.3.0.bb b/recipes-ros/urdfdom-headers/urdfdom-headers_0.3.0.bb
index b442d1b..3a116a7 100644
--- a/recipes-ros/urdfdom-headers/urdfdom-headers_0.3.0.bb
+++ b/recipes-ros/urdfdom-headers/urdfdom-headers_0.3.0.bb
@@ -11,3 +11,5 @@ SRC_URI[sha256sum] = "f059350cd85fc3b8394ed0c3bd0d4b8d14fa9c8edd09c3ee01881b4711
 S = "${WORKDIR}/${ROS_SP}"
 
 inherit cmake ros faulty-solibs
+
+ALLOW_EMPTY_${PN} = "1"