Fail on missing dependecies and trigger re-build if depends list changes in build configurations.

1 files changed, 11 insertions, 1 deletions

diff --git a/task.cc b/task.cc
index 10e9368..e5f11aa 100644
--- a/task.cc
+++ b/task.cc
@@ -8,18 +8,28 @@ Task::Task(const std::vector<std::string>& depends)
 {
 }
 
-void Task::registerDepTasks(const std::list<std::shared_ptr<Task>>& tasks)
+int Task::registerDepTasks(const std::list<std::shared_ptr<Task>>& tasks)
 {
 	for(auto const& depStr : dependsStr)
 	{
+		bool found{false};
 		for(const auto& task : tasks)
 		{
 			if(task->target() == depStr)
 			{
 				dependsTasks.push_back(task);
+				found = true;
 			}
 		}
+		if(!found)
+		{
+			std::cerr << "Could not find dependency " << depStr << " needed by " <<
+				target() << " target\n";
+			return 1;
+		}
 	}
+
+	return 0;
 }
 
 bool Task::dirty()