Readline error building 7.3-2 RPM

Hi,
  Does anybody know what this unusual error from the src.rpm build mean?
It's bailing at the readline check and inclusion.

I'm running readline/readline-devel 4.2a-4. In fact, I've just
reinstalled my system today, and thought now would be a good time to
goto Postgresql 7.3.
I'm running RH Linux 7.3, Kernel 2.4.18-18.7.x, and haven't really done
anything particularly unusual.
>>
configure:5837: gcc -o conftest -O2 -march=i386 -mcpu=i686
-I/usr/kerberos/include   -L/usr/kerberos/lib conftest.c -lreadline
-lcrypt -lresolv -lnsl -ldl -lm -lbsd  >&5
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../libreadline.so:
undefined reference to `tgetnum'
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../libreadline.so:
undefined reference to `tgoto'
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../libreadline.so:
undefined reference to `tgetflag'
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../libreadline.so:
undefined reference to `BC'
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../libreadline.so:
undefined reference to `tputs'
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../libreadline.so:
undefined reference to `PC'
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../libreadline.so:
undefined reference to `tgetent'
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../libreadline.so:
undefined reference to `UP'
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../libreadline.so:
undefined reference to `tgetstr'

Other than doing a rebuild with --without-readline. I was hoping
somebody might give me a pointer.

Thank you.
--
Hadley Willan > Systems Development > Deeper Design Limited.
hadley@deeper.co.nz > www.deeperdesign.com > +64 (21) 28 41 463
Level 1, 4 Tamamutu St, PO Box 90, TAUPO 2730, New Zealand.