I have libpq-dev, libpam-dev and libedit-dev,
I get this error when running make:
pgrhash.o: In function `pgrhash_create':
/home/hammady/workspace/pg_catcheck/pgrhash.c:51: undefined reference to `fls'
collect2: ld returned 1 exit status
make: *** [pg_catcheck] Error 1