Hi, Firstly: I solved the problem. For those who find it interesting to see where the issue resided, and how it was solved, I have posted the details down below. >libobjc is only installed as a dependency if you're installing the >gcc-objc package, not just plain gcc. Are you telling us what you're >really doing? Yep. >If libtool requires gcc and libtool is already on your system, then you >must also already have gcc. So why aren't you using "yum update gcc" >rather than "yum install gcc"? > >Have you tried simply "yum upgrade" (with no specific packages listed) >to bring the entire system up to date? If not, why not? Been there, done that. This results in (for "yum update" and "yum update gcc"): ---> Package gcc-objc.i386 0:3.4.6-3.1 set to be updated ---> Downloading header for gcc4-c++ to pack into transaction set. gcc4-c%2B%2B-4.1.0-18.EL4 100% |=========================| 32 kB 00:00 ---> Package gcc4-c++.i386 0:4.1.0-18.EL4.3 set to be updated --> Running transaction check --> Processing Dependency: gcc = 3.4.5 for package: libtool --> Finished Dependency Resolution Error: Missing Dependency: gcc = 3.4.5 is needed by package libtool >As a last resort I'd suggest that you try removing libtool entirely >(rpm -e libtool), then installing whatever gcc packages you are after, >and then try re-installing libtool. Yes. I agree in resorting to the last resort, so I tried that, and this resulted in the message: "error: "libtool" specifies multiple packages" But wait! Now there we have a really good clue as to what is going on!!! Multiple packages does not sound like a desirable situation!! Sooooo, trying to use yum instead shows something highly interesting: yum remove libtool Setting up Remove Process Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Package libtool.i386 0:1.5.6-4.EL4.1.c4.3 set to be erased ---> Package libtool.i386 0:1.5.6-4.EL4.1.c4.4 set to be erased --> Running transaction check Dependencies Resolved ======================================================================== ===== Package Arch Version Repository Size ======================================================================== ===== Removing: libtool i386 1.5.6-4.EL4.1.c4.3 installed 2.3 M libtool i386 1.5.6-4.EL4.1.c4.4 installed 2.3 M Transaction Summary ======================================================================== ===== Install 0 Package(s) Update 0 Package(s) Remove 2 Package(s) Total download size: 0 There ya go! No idea how both versions could have gotten installed, but this is definitely way off. I removed both packages, and afterwards a "yum update gcc" worked fine, then I ran "yum update" and that finished without any problems too. Finally, I ran "yum install libtool", and that worked smoothly too (it installed the "c4.4" version mentioned above). All swell now, and tnx everybody for your help! :) Cheerz, Olafo