My goto diff tool on Windows is the open-source WinMerge. On Linux, Ubuntu has an installable KDiff3, a member of the Qt-based KDE family of tools. At work we are using Centos 6 as our dev VM, and no installable KDiff3 is available.
So the README says to
$ ./configure kde4
and it should build and install. Our VMs had Qt installed already, but it failed getting the kdelibs. The instructions specified:
- libkde4-devel (KDE4 Header files and development libraries)
So get them. Right?
$ yum install libkde4-devel ... updates | 3.4 kB 00:00 Setting up Install Process No package libkde4-devel available. Error: Nothing to do
I am not a lib guru, but have done work on Qt (but Windows and Mac) and some Linux devs. After struggling from one to another I found:
$ yum list | grep kde kde-filesystem.noarch 4-30.1.el6 @base kde-settings.noarch 4.3.1-1.el6.centos @base kdebase.x86_64 6:4.3.4-6.el6 @base kdebase-libs.x86_64 6:4.3.4-6.el6 @base kdebase-runtime.x86_64 4.3.4-9.el6 @base kdebase-runtime-libs.x86_64 4.3.4-9.el6 @base kdebase-workspace.x86_64 4.3.4-24.el6 @base kdebase-workspace-libs.x86_64 4.3.4-24.el6 @base kdebase-workspace-wallpapers.noarch 4.3.4-24.el6 @base kdelibs.x86_64 6:4.3.4-19.el6 @base kdelibs-common.x86_64 6:4.3.4-19.el6 @base kdelibs-devel.x86_64 6:4.3.4-19.el6 @base kdelibs-experimental.x86_64 4.3.4-3.el6 @base kdepimlibs.x86_64 4.3.4-4.el6 @base ...
Aha! In Centos/RedHat/Fedora, the package is different — or maybe the project itself changed the lib names, and the doc is stale…
So this was the happy path for me:
$ sudo yum install kdelibs-devel $ sudo yum install cmake [releaseKde]$ kde4-config --prefix /usr $ cmake .. -DCMAKE_INSTALL_PREFIX=/usr $ make $ sudo make install
A colleague for whom I was trying to get this to work installed the correct lib, and then the $ ./configure kde4 worked fine. Probably totally obvious to a Linux guru, but a good exercise for a lib-newbie.