Content originally posted in LPCWare by whitecoe on Wed Aug 15 00:15:19 MST 2012
Simplest thing to do would be to just put a copy of the cmsis c file into your main application project with the change made to it, and that will get linked in instead of the one from the library project.
Or you could go all the way, and just copy all the files from the CMSIS library project into you main application project, and delete all references (include paths, link paths etc) to the CMSIS library project.
HTH!