postgresql/src/tools/pginclude/pgfixinclude

:
# mark includes as <> or ""

trap "rm -f /tmp/$$.c /tmp/$$.o /tmp/$$ /tmp/$$a /tmp/$$b" 0 1 2 3 15
find . \( -name CVS -a -prune \) -o -type f -print |
while read FILE
do
	cat "$FILE" | grep "^#include" |
	sed 's/^#include[ 	]*[<"]\([^>"]*\).*$/\1/g' |
	while read INCLUDE
	do
		if [ -s /usr/include/"$INCLUDE" ]
		then	cat "$FILE" |
			sed 's;^#include[ 	][ 	]*[<"]'"$INCLUDE"'[>"]$;#include <'"$INCLUDE"'>;g' >/tmp/$$
		else	cat "$FILE" |
			sed 's;^#include[ 	][ 	]*[<"]'"$INCLUDE"'[>"]$;#include "'"$INCLUDE"'";g' >/tmp/$$
		fi
		cat /tmp/$$ > "$FILE"
	done
done