It doesn't translate the octal and hexadecimal constants into decimal, but you could get a first cut at that from cd /usr/include; egrep -r \#define.*[0-9]+$

It doesn't translate the octal and hexadecimal constants into decimal, but you could get a first cut at that from cd /usr/include; egrep -r \#define.*[0-9]+$ . | sed 's/#define[\t ]//' | awk '{print $NF, $1}' | sort -n