Windows Dev Resources
How to Install gcc/g++ 4.7.2 on Cygwin
How to install a newer version of GCC
Perforce / P4V
How to delete a perforce pending changelist
11 clicks in P4V, through an arbitrary sequence of menu items.
- Right click on the changelist
 - Delete shelved files
 - ‘Yes’
 - Right click on the changelist
 - Remove all jobs
 - Right click on the changelist
 - Revert files
 - ‘Revert’
 - Right click on the changelist
 - Delete pending changelist
 - ‘Yes’
 
- stackoverflow: http://stackoverflow.com/questions/12296080/how-to-delete-a-perforce-client-with-pending-changelist