[cmake-developers] [CMake 0014986]: FindBoost with component thread does not properly link with boost_system

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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http://public.kitware.com/Bug/view.php?id=14986 
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Reported By:                mband
Assigned To:                
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Project:                    CMake
Issue ID:                   14986
Category:                   Modules
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
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Date Submitted:             2014-06-23 10:54 EDT
Last Modified:              2014-06-23 10:54 EDT
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Summary:                    FindBoost with component thread does not properly
link with boost_system
Description: 
When just finding the thread component of Boost it appears that one also has to
link with boost_system. From the Boost documentation it looks like this change
was introduced with version 1.52 (see
http://www.boost.org/doc/libs/1_52_0/doc/html/thread/build.html).

Steps to Reproduce: 
FIND_PACKAGE(Boost COMPONENTS thread)
target_link_libraries(my_target ${Boost_LIBRARIES})

Resulting in a linker error like the following:
/usr/bin/ld: CMakeFiles/<something>.dir/<something>.o: undefined reference to
symbol '_ZN5boost6system15system_categoryEv'
//usr/lib/x86_64-linux-gnu/libboost_system.so.1.54.0: error adding symbols: DSO
missing from command line

Linking with boost_system (i.e. -lboost_system or
target_link_libraries(my_target boost_system)) solves the issue, but it should
be done automatically when finding the thread component of Boost.
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Issue History 
Date Modified    Username       Field                    Change               
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2014-06-23 10:54 mband          New Issue                                    
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