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CCS/msp430f5527: abs function

Part Number: MSP430F5527

Tool/software: Code Composer Studio

I just upgraded from CCS 6.1 on an old XP machine to the latest version on a newer PC.  Now all of my existing MSP430 projects fail to build with an error that the built-in "int abs()" function conflicts with the "long" version. I've tried changing around the include order and include paths, but nothing solves the problem.  I tried creating a new, empty project.  It builds okay.  I compared the include options with my existing projects - they match. 

I'm sure this is something simple, but has anyone else experienced anything similar?