[cmake-developers] [CMake 0011351]: trycompile does not work on MSVC_IDE with --debug-trycompile

Mantis Bug Tracker mantis at public.kitware.com
Fri Oct 22 01:58:16 EDT 2010


The following issue has been SUBMITTED. 
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http://public.kitware.com/Bug/view.php?id=11351 
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Reported By:                Andreas Roth
Assigned To:                
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Project:                    CMake
Issue ID:                   11351
Category:                   CMake
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
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Date Submitted:             2010-10-22 01:58 EDT
Last Modified:              2010-10-22 01:58 EDT
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Summary:                    trycompile does not work on MSVC_IDE with
--debug-trycompile
Description: 
I've written a small CMakeLists.txt (attached), which demonstrates the
problem that the result of the second try_compile attempt (e.g. by
CHECK_FUNCTION_EXISTS) has the same result as before and this causes
try_compile to produce wrong results. 
Since the CMake temporary project files are not deleted before the next
try_compile command, the MSVC assume that the output file is still
up-to-date. This could be workarounded if a additional dependency for the
output file to the generated project file is introduced (don't know if this
is possible.
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Issue History 
Date Modified    Username       Field                    Change               
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2010-10-22 01:58 Andreas Roth   New Issue                                    
2010-10-22 01:58 Andreas Roth   File Added: CMakeLists.txt                    
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