[cmake-developers] [CMake 0013211]: CMake should not link shared libraries recursively

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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http://public.kitware.com/Bug/view.php?id=13211 
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Reported By:                thanil
Assigned To:                
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Project:                    CMake
Issue ID:                   13211
Category:                   CMake
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
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Date Submitted:             2012-05-10 21:36 EDT
Last Modified:              2012-05-10 21:36 EDT
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Summary:                    CMake should not link shared libraries recursively
Description: 
If target A depends on a shared library B and B depends on a shared library C,
then CMake will create linker directives to link A to both B and C, when it
should only link A to B. This creates unnecessary dependencies in the case of
shared libraries.

Steps to Reproduce: 
Attached file contains example CMake project with an executable A and two shared
libraries B and C.
Once cmake has been run from directory xxx
xxx/CMakeFiles/a.dir/link.txt contains the following line:

/usr/bin/gcc   -Wl,-search_paths_first -Wl,-headerpad_max_install_names  
CMakeFiles/a.dir/a.c.o  -o a  b/liblibb.dylib b/c/liblibc.dylib 

which shows that A will be linked to C when there is no reason to do so since
these are shared libraries.
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Issue History 
Date Modified    Username       Field                    Change               
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2012-05-10 21:36 thanil         New Issue                                    
2012-05-10 21:36 thanil         File Added: cmake_link_bug.tar.gz               
    
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