From f0b8cecf9d17ed596f26b78f9298c28c6b27b5df Mon Sep 17 00:00:00 2001
From: Ken Martin <ken.martin@kitware.com>
Date: Fri, 10 Jun 2005 10:08:41 -0400
Subject: [PATCH] ENH: allow libs with no sources but complain

---
 Source/cmAddLibraryCommand.cxx | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Source/cmAddLibraryCommand.cxx b/Source/cmAddLibraryCommand.cxx
index 9af872c11..f363b933e 100644
--- a/Source/cmAddLibraryCommand.cxx
+++ b/Source/cmAddLibraryCommand.cxx
@@ -60,8 +60,11 @@ bool cmAddLibraryCommand::InitialPass(std::vector<std::string> const& args)
 
   if (s == args.end())
     {
-    this->SetError("called with incorrect number of arguments, no sources provided");
-    return false;
+    std::string msg = "You have called ADD_LIBRARY for library ";
+    msg += args[0];
+    msg += " without any source files. This typically indicates a problem ";
+    msg += "with your CMakeLists.txt file";
+    cmSystemTools::Message(msg.c_str() ,"Warning");
     }
 
   std::vector<std::string> srclists;