We use armcc inside DS-5, where it runs ok through the IDE.
But can the armcc compiler that comes with the tower starter kit be used outside of DS-5?
On terminal or through makefiles.
I get this license error if I try to run it from terminal:
Error: C9555E: License checkout for feature compiler5 with version 5.0201503 has been denied by Flex back-end. Error code: -5
No such feature exists.
License path: /home/user/lic.lic:/home/user/.ds-5/licenses/DS-5 Vybrid Tower Starter Kit.lic:/opt/arm/licenses/license.dat:
FlexNet Licensing error:-5,357
For further information, refer to the FlexNet Licensing documentation,
available at "www.flexerasoftware.com".
Product: DS-5 Professional 5.22.0 
Component: ARM Compiler 5.05 update 2 (build 169)
Tool: armcc [4d0f38]