From 9db9c1fc8b3314b70a243250ea2879c5a0e82799 Mon Sep 17 00:00:00 2001
From: Stephen Kelly <steveire@gmail.com>
Date: Fri, 14 Feb 2014 13:43:40 +0100
Subject: cmTarget: Don't try to get sources of an INTERFACE_LIBRARY.

An an assert to ensure this.
---
 Source/cmGeneratorTarget.cxx | 11 +++++++----
 Source/cmGlobalGenerator.cxx |  3 ++-
 Source/cmTarget.cxx          |  1 +
 3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index 2573c85..175bb0e 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -498,11 +498,14 @@ cmTargetTraceDependencies
 
   // Queue all the source files already specified for the target.
   std::vector<cmSourceFile*> sources;
-  this->Target->GetSourceFiles(sources);
-  for(std::vector<cmSourceFile*>::const_iterator si = sources.begin();
-      si != sources.end(); ++si)
+  if (this->Target->GetType() != cmTarget::INTERFACE_LIBRARY)
     {
-    this->QueueSource(*si);
+    this->Target->GetSourceFiles(sources);
+    for(std::vector<cmSourceFile*>::const_iterator si = sources.begin();
+        si != sources.end(); ++si)
+      {
+      this->QueueSource(*si);
+      }
     }
 
   // Queue pre-build, pre-link, and post-build rule dependencies.
diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index a61cab1..0c44681 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -1468,7 +1468,8 @@ void cmGlobalGenerator::ComputeGeneratorTargetObjects()
     for(cmGeneratorTargetsType::iterator ti = targets.begin();
         ti != targets.end(); ++ti)
       {
-      if (ti->second->Target->IsImported())
+      if (ti->second->Target->IsImported()
+          || ti->second->Target->GetType() == cmTarget::INTERFACE_LIBRARY)
         {
         continue;
         }
diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index 3e96b69..db34bd8 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -551,6 +551,7 @@ bool cmTarget::FindSourceFiles()
 //----------------------------------------------------------------------------
 void cmTarget::GetSourceFiles(std::vector<cmSourceFile*> &files) const
 {
+  assert(this->GetType() != INTERFACE_LIBRARY);
   files = this->SourceFiles;
 }
 
-- 
cgit v0.12