idea for compiling

Hello, 
 I'am compiling a lot of sofware packages, which requires postgres header
files under /usr/local/pgsql. It is possible to provide little script, which will tell, where
components of postgresql are installed ? 
 Something like:
$ pgsql-config --cflags pgsql
-I/opt/pgsql/include

$ pgsql-config --ldflags pgsql
-L/opt/pgsql/lib -lpq

Same script for java or perl will help
('pgsql-config --classpath pgsql-java'  will print: --classpath=/opt/pgsql/lib/postgresql.jar).
                               thanks,

p.s.: this isn't my idea, gnome or gtk does this ...
-- 
* David Sauer, student of Czech Technical University
* electronic mail: davids@orfinet.cz (mime compatible)