tapio@Pochi ~ $ sudo pacman -S eclipse-cdt                        
Password:                                                         
resolving dependencies...                                         
looking for inter-conflicts...                                    

Targets (1): eclipse-cdt-5.0.1-1  

Total Download Size:    0.00 MB
Total Installed Size:   37.05 MB

Proceed with installation? [Y/n] y
checking package integrity...     
(1/1) checking for file conflicts                   [################################################] 100%
(1/1) installing eclipse-cdt                        [################################################] 100%
tapio@Pochi ~ $ eclipse                                                                                    
org.osgi.framework.BundleException: State change in progress for bundle "reference:file:plugins/org.eclipse.equinox.p2.reconciler.dropins_1.0.2.R34x_v20080909.jar" by thread "Start Level Event Dispatcher".         
   at org.eclipse.osgi.framework.internal.core.AbstractBundle.beginStateChange(AbstractBundle.java:1144)   
   at org.eclipse.osgi.framework.internal.core.AbstractBundle.uninstall(AbstractBundle.java:833)           
   at org.eclipse.equinox.internal.simpleconfigurator.ConfigApplier.uninstallBundles(ConfigApplier.java:360)                                                                                                          
   at org.eclipse.equinox.internal.simpleconfigurator.ConfigApplier.install(ConfigApplier.java:68)         
   at org.eclipse.equinox.internal.simpleconfigurator.SimpleConfiguratorImpl.applyConfiguration(SimpleConfiguratorImpl.java:124)
   at org.eclipse.equinox.internal.simpleconfigurator.SimpleConfiguratorImpl.applyConfiguration(SimpleConfiguratorImpl.java:138)
   at org.eclipse.equinox.internal.p2.reconciler.dropins.ProfileSynchronizer.applyConfiguration(ProfileSynchronizer.java:391)
   at org.eclipse.equinox.internal.p2.reconciler.dropins.ProfileSynchronizer.synchronize(ProfileSynchronizer.java:105)
   at org.eclipse.equinox.internal.p2.reconciler.dropins.Activator.synchronize(Activator.java:402)
   at org.eclipse.equinox.internal.p2.reconciler.dropins.Activator.start(Activator.java:161)
   at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:1009)
   at java.security.AccessController.doPrivileged(libgcj.so.9)
   at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1003)
   at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:984)
   at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:346)
   at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:355)
   at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1074)
   at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:616)
   at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:508)
   at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:299)
   at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:489)
   at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:211)
   at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:321)
Caused by: org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException
   at org.eclipse.osgi.framework.internal.core.AbstractBundle.beginStateChange(AbstractBundle.java:1144)
   ...22 more