Install gcc.4.1.2 in RedHat

Kernel-headers-2.6.18-194.el5.i386.rpm
Glibc-common-2.5-49.i386.rpm
[14:04:14] chingliu Yu: glibc-2.5-49.i686.rpm
[14:04:22] chingliu Yu: glibc-headers-2.5-49.i386.rpm
[14:06:03] chingliu Yu: glibc-devel-2.5-49.i386.rpm
[14:06:11] chingliu Yu: libgomp-4.4.0-6.el5.i386.rpm
[14:06:34] Lixin LU: Error on 2_glic
[14:07:35] chingliu Yu: [14: 06] Lixin LU:

<Error on 2_glic error message
[14:08:25] Lixin LU: [root @ localhost gcc4.1] # rpm-IVH 2_glibc-headers-2.5-49.i386.rpm
Warning: 2_glibc-headers-2.5-49.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186
Error: Failed dependencies:
Glibc = 2.5-49 is needed by glibc-headers-2.5-49.i386
[14:08:51] Lixin LU: [root @ localhost gcc4.1] # rpm-IVH 2_glibc-headers-2.5-49.i386.rpm
Warning: 2_glibc-headers-2.5-49.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186
Error: Failed dependencies:
Glibc = 2.5-49 is needed by glibc-headers-2.5-49.i386
[14:08:52] chingliu Yu: cpp-4.1.2-48.el5.i386.rpm
[14:09:02] chingliu Yu: [14: 04] chingliu Yu:

<Glibc-common-2.5-49.i386.rpm
Glibc-2.5-49.i686.rpm
Glibc-headers-2.5-49.i386.rpm
Glibc-devel-2.5-49.i386.rpm
Libgomp-4.4.0-6.el5.i386.rpm
[14:10:47] Lixin LU: [root @ localhost gcc4.1] # rpm-IVH glibc-common-2.5-49.i386.rpm
Warning: glibc-common-2.5-49.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186
Preparing... ######################################## ### [100%]
File/usr/bin/gencat from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/bin/getconf from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/bin/getent from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/bin/iconv from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/bin/lddlibc4 from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/bin/locale from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/bin/localedef from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/bin/rpcgen from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/bin/sprof from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/libexec/pt_chown from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/sbin/build-locale-archive from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/sbin/rpcinfo from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/sbin/tzdata-update from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/sbin/zdump from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
File/usr/sbin/zic from install of glibc-common-2.5-49 conflicts with file from package glibc-common-2.5-24
[Root @ localhost gcc4.1] # rpm-IVH glibc-2.5-49.i686.rpm
Warning: glibc-2.5-49.i686.rpm: Header V3 DSA Signature: nokey, key ID 37017186
Error: Failed dependencies:
Glibc-common = 2.5-49 is needed by glibc-2.5-49.i686
[14:11:24] Lixin LU: It looks like glibc-common is OK
[14:11:30] chingliu Yu: Use the command -- replacefiles
[14:11:37] Lixin LU: But glibc-2.5 failed
[14:11:42] Lixin LU: O
[14:11:43] chingliu Yu: [14: 08] chingliu Yu:

<Cpp-4.1.2-48.el5.i386.rpmrpm-IVH gcc-4.1.2-48.el5.i386.rpm -- replacefiles
Rpm-IVH libgcc-4.1.2-48.el5.i386.rpm -- replacefiles
Rpm-IVH gcc-4.1.2-48.el5.i386.rpm -- replacefiles
Rpm-IVH libstdc ++-devel-4.1.2-48.el5.i386.rpm -- replacefiles
Rpm-IVH libstdc ++-4.1.2-48. el5.i386. rpm -- replacefiles