Dependancy problem with libjpeg-6b-21

["Rajkumar S." <reactos myrealbox com>]

Hi,

I am trying to build the qmail toaster rpms from 
http://qmailtoaster.clikka.com/, and came across a problem while 
building mrtg-toaster, the error messages is explanatory

[root@swathi SPECS]# rpmbuild -bb  --with rht80  mrtg-toaster.spec
error: Failed build dependencies:
        libjpeg-devel-6b-21 is needed by mrtg-toaster-2.9.25-1.1.4
[root@swathi SPECS]# rpm -qa | grep libjpeg
libjpeg-devel-6b-21
libjpeg-6b-21
[root@swathi SPECS]# rpm --version
RPM version 4.1

This is the relevent portion of the spec file

%if %{build_rht_80}
%define		release %{bversion}.%{rpmrelease}
%define 	ostype "Linux RedHat 8.0"
%define		perl_vendorarch /usr/lib/perl5/5.6.1/i386-linux
BuildRequires:	gd-devel, freetype-devel, libjpeg-devel-6b-21, libpng-devel
Requires:	crontabs, freetype, libjpeg-6b-21, libpng, gd
%define 	build_mdk_72   0
%define 	build_mdk_80   0
%define 	build_mdk_81   0
%define 	build_mdk_82   0
%define 	build_mdk_90   0
%define		build_mdk_91   0
%define 	build_rht_7x   0
%define 	build_rht_80   1
%define 	build_sus_7x   0
%define 	build_sus_80   0
%define 	build_trustix  0
%define		default	       0
%endif

I am wondering why I get this error? when I gave --nodeps it compiled fine.

Thanks for your help

raj