[cmake-developers] [CMake 0012872]: cmake fails to produce a *unique* object file name and causes name collisions

Mantis Bug Tracker mantis at public.kitware.com
Wed Jan 11 19:12:58 EST 2012


The following issue has been SUBMITTED. 
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http://public.kitware.com/Bug/view.php?id=12872 
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Reported By:                freddie
Assigned To:                
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Project:                    CMake
Issue ID:                   12872
Category:                   CMake
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
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Date Submitted:             2012-01-11 19:12 EST
Last Modified:              2012-01-11 19:12 EST
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Summary:                    cmake fails to produce a *unique* object file name
and causes name collisions
Description: 
cmake attempts to use the same object file name for

${CMAKE_CURRENT_SOURCE_DIR}/a.cpp
${CMAKE_CURRENT_BINARY_DIR}/a.cpp

despite the statement of uniqueness in the documentation entry for
CMAKE_OBJECT_PATH_MAX. (The second file is generated, e.g., by bison, ragel
etc.)

This causes a warning and an incorrectly generated makefile rule:

Warning: Source file "${CMAKE_CURRENT_BINARY_DIR}/a.cpp" is listed multiple
times for target "xxx".

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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2012-01-11 19:12 freddie        New Issue                                    
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