Getting the latest Qt Creator for Ubuntu
One of the rather annoying things with Ubuntu is the slow update policy for packages in the official repos. To be fair, Canonical’s reluctance to put updates into the official
Author: Jens Libuda
Latest gcc compiler on Ubuntu
I recently had some trouble compiling source code from the net which would not run under Ubuntu’s default gcc version, which is 5.4.0 for Xenial. The first thing to know
Installing Oracle Java on Manjaro / Arch
Linux distributions normally ship with the OpenJDK Java. Anyone who has ever tried to develop in Java will come to a point, where it is difficult to get around Oracle’s
Manjaro bug: Wifi gone after wake-up from hibernation
I recently started to run Manjaro on one of my non-essential production machines as a replacement candidate for Ubuntu which had a couple of annoying malfunctions since 16.04 (dropped fglx
What to do about “QPSQL driver not loaded”
If you created a PostgreSQL database object in your code with QtSql’s QSqlDatabase::addDatabase(“PSQL”); your will sometimes get an Application Output like this:
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QSqlDatabase: QPSQL driver not loaded. QSqlDatabase: available drivers: QSQLITE |
Qt Designer – Finding header files in project subdirectories
In order to organize larger Qt projects, I usually create subdirectories to hold different “components” of the project. For instance, I like to extend Qt’s QLineEdit into my own DateLine
undefined reference `__stack_chk_fail’ in luasocket build
In recent OpenWRT releases, the build fails because there is a couple of error messages indicating that the luasocket sources contain undefined references to `__stack_chk_fail_local’.
Git installation bug in OpenWRT’s Chaos Calmer 15.05.1
If you compiled OpenWRT’s Chaos Calmer 15.05.1 stable release from source and installed git by opkg, you will get a git version which is both outdated (version 2.3.5-1 while the
Quick Tip: Setting header and footer margins in g-brief for LaTeX
If you are an old-fashioned folk like me, you will probbably use LaTeX instead of Microsoft Office or LibreOffice to write your letters. Although there have been some successor document
Always trouble with Karel…
If you want to learn about computer science in general and about Java programming in particular, maybe one of the best learning ressources to look at is the CS106A online