Description Baltasar Belyavsky 2011-03-16 14:20:35 EDT

It is impossible to change the configuration-relations setting on the project-scope because it doesn't get persisted anywhere. The setting is only saved in memory, so it does stick until you close/reopen the project, or delete/reimport it.

Steps to reproduce:

1. Create a simple C project.
2. Go to project Properties > C/C++ General > Indexer page.
3. Set the "Enable project specific settings" and the "Store settings with project" checkboxes.
4. Change the "Build configuration for indexer" setting to "Use active build configuration". Click OK.
-> Reopen the dialog - the setting does stick.
5. Close and reopen the project and check the same setting again.
-> The setting is reset back to the default "Use a fixed build configuration".

This setting is meant to be persisted into the .cproject file. If I manually add it into the .cproject (see "configRelations=2" below), then it does stick:
---
<cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
   <storageModule configRelations="2" moduleId="org.eclipse.cdt.core.settings">
   ...
---