[cmake-developers] [CMake 0015857]: Symbols from *.obj's from an OBJECT lib are not exported when included in a SHARED lib when using WINDOWS_EXPORT_ALL_SYMBOLS

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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https://cmake.org/Bug/view.php?id=15857 
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Reported By:                Chris M
Assigned To:                
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Project:                    CMake
Issue ID:                   15857
Category:                   CMake
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
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Date Submitted:             2015-11-24 10:09 EST
Last Modified:              2015-11-24 10:09 EST
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Summary:                    Symbols from *.obj's from an OBJECT lib are not
exported when included in a SHARED lib when using WINDOWS_EXPORT_ALL_SYMBOLS
Description: 
The setup is a program and two libraries.  

Library 'bar' is an 'OBJECT' library.  

Library 'foo' is a 'SHARED' library that includes the 'TARGET_OBJECTS' from bar
in its sources.

Executable 'main' links to 'foo', and calls a function that should be exported
from 'bar'.

'main' fails to link due to not finding the symbols from 'bar'.

Steps to Reproduce: 
Extract attached zip.
mkdir build
cd build
cmake ../
cmake --build .

Expected succesful linking.

Actually 'main' executable fails to link with missing symbol from 'bar' lib.

Additional Information: 

Tested on Windows 10 with Visual Studio 14 2015 Win64.
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Issue History 
Date Modified    Username       Field                    Change               
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2015-11-24 10:09 Chris M        New Issue                                    
2015-11-24 10:09 Chris M        File Added: export-all-obj-lib.zip              
     
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