Netbeans using gcc unable to find standard header files after linux upgrade

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http://stackoverflow.com – I'm developing a C application using Netbeans 7.1.2 on an IBM ThinkPad Edge 64-bit with a Core 2 Duo processor. I just upgraded from Linux Mint 9 to Linux Mint 14, and now Netbeans cannot find many of the standard header files needed to build my project. Before the Linux upgrade everything ran fine. I've tried looking at the paths Netbeans uses to search for standard header files for two versions of Netbeans, and they are identical. Is it likely that the location of those header files varies between distributions, or is their location part of the GNU standard (or maybe a Linux standard)? I sup (HowTos)