[root@ba2 yum.repos.d]# yum install httpd-devel
Setting up Install Process
Setting up repositories
update                    100% |=========================|  951 B    00:00     
base                      100% |=========================| 1.1 kB    00:00     
addons                    100% |=========================|  951 B    00:00     
extras                    100% |=========================| 1.1 kB    00:00     
Reading repository metadata in from local files
primary.xml.gz            100% |=========================| 127 kB    00:00     
update    : ################################################## 430/430
Added 430 new packages, deleted 0 old in 2.89 seconds
primary.xml.gz            100% |=========================| 580 kB    00:00     
base      : ################################################## 1518/1518
Added 1518 new packages, deleted 0 old in 8.70 seconds
primary.xml.gz            100% |=========================|  157 B    00:00     
Added 0 new packages, deleted 0 old in 0.01 seconds
primary.xml.gz            100% |=========================|  53 kB    00:00     
extras    : ################################################## 220/220
Added 220 new packages, deleted 0 old in 1.01 seconds
Parsing package install arguments
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Downloading header for httpd-devel to pack into transaction set.
httpd-devel-2.0.52-32.3.e 100% |=========================|  29 kB    00:00     
---> Package httpd-devel.i386 0:2.0.52-32.3.ent.centos4 set to be updated
--> Running transaction check
--> Processing Dependency: apr-util-devel for package: httpd-devel
--> Processing Dependency: httpd = 2.0.52 for package: httpd-devel
--> Processing Dependency: apr-devel for package: httpd-devel
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Downloading header for apr-devel to pack into transaction set.
apr-devel-0.9.4-24.5.c4.2 100% |=========================|  32 kB    00:00     
---> Package apr-devel.i386 0:0.9.4-24.5.c4.2 set to be updated
---> Downloading header for apr-util-devel to pack into transaction set.
apr-util-devel-0.9.4-21.i 100% |=========================|  25 kB    00:00     
---> Package apr-util-devel.i386 0:0.9.4-21 set to be updated
--> Running transaction check
--> Processing Dependency: httpd = 2.0.52 for package: httpd-devel
--> Finished Dependency Resolution
Error: Missing Dependency: httpd = 2.0.52 is needed by package httpd-devel
[root@ba2 yum.repos.d]#