keshav yadav <keshav.yadav2005@xxxxxxxxx> writes: > I check this file, it takes options to set GCC standard. But in source > code i could not able to find the exact location, where GCC set a > particular standard, that can be changed. Once you determine which flags you care about, find the definition of the flag (typically c-common.c) and change its initial value. Or just write a tiny shell script to run gcc with your preferred option. Ian