[cmake-developers] [CMake 0013523]: Function defined in a subdiretory can't see its global variables when called from outside

Mantis Bug Tracker mantis at public.kitware.com
Thu Sep 6 20:20:45 EDT 2012


The following issue has been SUBMITTED. 
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http://cmake.org/Bug/view.php?id=13523 
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Reported By:                quaker
Assigned To:                
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Project:                    CMake
Issue ID:                   13523
Category:                   CMake
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
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Date Submitted:             2012-09-06 20:20 EDT
Last Modified:              2012-09-06 20:20 EDT
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Summary:                    Function defined in a subdiretory can't see its
global variables when called from outside
Description: 
Usually functions can read global variables that are set in the same directory.
But this doesn't work when a function that is defined in a subdirectory is
called from its parent directory.

Steps to Reproduce: 
1. Create CMakeLists.txt with the following text:

cmake_minimum_required(VERSION 2.8)
set(FOO "bar")
function(test)
	message("test(): FOO=${FOO}")
endfunction()
test()
add_subdirectory(sub)
sub_test()


2. Create a subdirectory called "sub" and another CMakeLists.txt in it:

set(SUB_FOO "sub_bar")
function(sub_test)
	message("sub_test(): SUB_FOO=${SUB_FOO}")
endfunction()

3. Run cmake against the root directory



Exptected output:

test(): FOO=bar
sub_test(): SUB_FOO=sub_bar

Actual result:

test(): FOO=bar
sub_test(): SUB_FOO=
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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2012-09-06 20:20 quaker         New Issue                                    
2012-09-06 20:20 quaker         File Added: test.zip                         
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