I use gcc to prepare input to a static analysis tool (Frama-C). Unfortunately, this tool is picky about stdc-predef.h, so I have tried to get rid of it. I have tried the options -nostdinc, -ffreestanding, -fno-builtin, and -fno-hosted, but all of these failed. I use gcc version 4.8.2 and ArchLinux 3.13.7-1-ARCH. Does anyone know how to disable pre-include effectively? Frank