[root@bsnew yum.repos.d]# yum install pcre
Loaded plugins: katello, product-id, security, subscription-manager
Updating certificate-based repositories.
Unable to read consumer identity
Setting up Install Process
Resolving Dependencies
--> Running transaction check
--> Processing Dependency: libpcre.so.0()(64bit) for package: php
--> Processing Dependency: libpcre.so.0()(64bit) for package: httpd
--> Processing Dependency: libpcre.so.0()(64bit) for package: grep
--> Processing Dependency: libpcre.so.0()(64bit) for package: php-cli
---> Package pcre.i386 0:6.6-9.el5 set to be updated
--> Finished Dependency Resolution
grep-2.5.1-55.el5.x86_64 from installed has depsolving problems
  --> Missing Dependency: libpcre.so.0()(64bit) is needed by package grep-2.5.1-55.el5.x86_64 (installed)
php-5.1.6-32.el5.x86_64 from installed has depsolving problems
  --> Missing Dependency: libpcre.so.0()(64bit) is needed by package php-5.1.6-32.el5.x86_64 (installed)
php-cli-5.1.6-32.el5.x86_64 from installed has depsolving problems
  --> Missing Dependency: libpcre.so.0()(64bit) is needed by package php-cli-5.1.6-32.el5.x86_64 (installed)
httpd-2.2.3-63.el5.x86_64 from installed has depsolving problems
  --> Missing Dependency: libpcre.so.0()(64bit) is needed by package httpd-2.2.3-63.el5.x86_64 (installed)
Error: Missing Dependency: libpcre.so.0()(64bit) is needed by package php-cli-5.1.6-32.el5.x86_64 (installed)
Error: Missing Dependency: libpcre.so.0()(64bit) is needed by package php-5.1.6-32.el5.x86_64 (installed)
Error: Missing Dependency: libpcre.so.0()(64bit) is needed by package httpd-2.2.3-63.el5.x86_64 (installed)
Error: Missing Dependency: libpcre.so.0()(64bit) is needed by package grep-2.5.1-55.el5.x86_64 (installed)
 You could try using --skip-broken to work around the problem
 You could try running: package-cleanup --problems
                        package-cleanup --dupes
                        rpm -Va --nofiles --nodigest

>>> print platform.dist(),platform.uname()
('redhat', '4', 'Tikanga') ('Linux', 'bsnew', '2.6.18-308.el5', '#1 SMP Fri Jan 27 17:17:51 EST 2012', 'x86_64', 'x86_64')

[root@bsnew ~]# yum install gcc
.
.
.
Total                                                                                                                                                                297 kB/s |  18 MB     01:01
Running rpm_check_debug
ERROR with rpm_check_debug vs depsolve:
gcc is needed by (installed) gcc-c++-4.1.2-52.el5.x86_64
gcc is needed by (installed) gcc-gfortran-4.1.2-52.el5.x86_64
gcc is needed by (installed) gcc-c++-4.1.2-52.el5.x86_64
gcc is needed by (installed) gcc-gfortran-4.1.2-52.el5.x86_64
libstdc++-devel is needed by (installed) gcc-c++-4.1.2-52.el5.x86_64
libstdc++-devel is needed by (installed) gcc-c++-4.1.2-52.el5.x86_64
Complete!
(1, [u'Please report this error in https://bugzilla.redhat.com/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%205&component=yum'])