| View Issue Details [ Jump to Notes ] | [ Print ] | ||||||||
| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
| 0013523 | CMake | CMake | public | 2012-09-06 20:20 | 2013-03-04 08:38 | ||||
| Reporter | szx | ||||||||
| Assigned To | |||||||||
| Priority | normal | Severity | minor | Reproducibility | always | ||||
| Status | closed | Resolution | no change required | ||||||
| Platform | Any | OS | OS Version | ||||||
| Product Version | CMake 2.8.9 | ||||||||
| Target Version | Fixed in Version | ||||||||
| Summary | 0013523: 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= | ||||||||
| Tags | No tags attached. | ||||||||
| Attached Files |  test.zip [^] (805 bytes) 2012-09-06 20:20 | ||||||||
| Relationships | |
| Relationships |
| Notes | |
|
(0030952) Rolf Eike Beer (developer) 2012-09-07 04:07 |
This behaves exactly as expected. When you call sub_test you are not in the subdirectory anymore, so SUB_FOO is not set anymore. This variable exists only in the scope of the subdirectory, which you already left so the variable is destroyed. If you want SUB_FOO to be "sort of" global you can append PARENT_SCOPE to the set() in the subdirectory, so the variable will exist one scope (i.e. directory or function) level upwards, too. |
|
(0032441) Robert Maynard (manager) 2013-03-04 08:38 |
Closing resolved issues that have not been updated in more than 4 months. |
| Notes |
| Issue History | |||
| Date Modified | Username | Field | Change |
| 2012-09-06 20:20 | szx | New Issue | |
| 2012-09-06 20:20 | szx | File Added: test.zip | |
| 2012-09-07 04:07 | Rolf Eike Beer | Note Added: 0030952 | |
| 2012-09-07 04:07 | Rolf Eike Beer | Status | new => resolved |
| 2012-09-07 04:07 | Rolf Eike Beer | Resolution | open => no change required |
| 2013-03-04 08:38 | Robert Maynard | Note Added: 0032441 | |
| 2013-03-04 08:38 | Robert Maynard | Status | resolved => closed |
| Issue History |
| Copyright © 2000 - 2018 MantisBT Team |