[cmake-developers] [CMake 0015847]: ADD_LIBRARY without any sources generates an unnecessary warning

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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https://public.kitware.com/Bug/view.php?id=15847 
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Reported By:                Erik Sjölund
Assigned To:                
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Project:                    CMake
Issue ID:                   15847
Category:                   CMake
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
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Date Submitted:             2015-11-16 16:28 EST
Last Modified:              2015-11-16 16:28 EST
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Summary:                    ADD_LIBRARY without any sources generates an
unnecessary warning
Description: 
I think this warning could be removed:
"You have called ADD_LIBRARY for library foobar without any source files. This
typically indicates a problem with your CMakeLists.txt file"

The reason is that I would like to add the target sources at a later time with
the target_sources command.

For more explanation see my post:
https://cmake.org/pipermail/cmake-developers/2015-July/025761.html

and the answer from Brad King:
https://cmake.org/pipermail/cmake-developers/2015-July/025764.html

Steps to Reproduce: 
See the attached file: bug.txt
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Issue History 
Date Modified    Username       Field                    Change               
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2015-11-16 16:28 Erik Sjölund   New Issue                                    
2015-11-16 16:28 Erik Sjölund   File Added: bug.txt                          
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