#qt 4.6 #beta with #arora #browser compiled for it uploaded for #ubuntu #karmic

I have reuploaded the qt 4.6 beta 1 this time i have added libqt4-
phonon-dev - it was missing by mistake so it will not remove all the kde packages this time :)
also arora 0.10.1 was recompiled with new qt 4.6 features

https://edge.launchpad.net/~mapopa/+archive/qt4.6

Debugging #Firebird and #Drupal #php #pdo driver

I started by installing latest php : 5.3.1 rc3 and then with the help of ddd

I can step and put breakpoints in the driver source

cd /opt/build/php-5.3.1RC3

sudo ddd /usr/sbin/apache2

Load the drupal install and follow this guide

also I have started to use the debug_backtrace to figure the error without text that i have (empty exception text)

print_r(debug_backtrace());

I have joined to #Alioth #Firebird #Debian project

Seems that i need alioth account http://wiki.debian.org/Alioth to modify the firebird packages , in fact i will modify just the Git repository , maybe i will help with manual pages for firebird 2.5 and with packaging bugs

git insufficient permission for adding an object to repository database ./objects

this is a shared group repository
so i had to enter the repository dir and make sure group can write into it

ssh to server
cd repository.git

sudo chmod -R g+ws *
sudo chgrp -R mygroup *

git repo-config core.sharedRepository true

and the try to push origin master again

#etckeeper is using #bzr by default in !ubuntu #karmic

sudo apt-get install etckeeper

grep VCS /etc/etckeeper/etckeeper.conf

VCS="bzr"

to see the changes in a graphical way

sudo apt-get install bzr-gtk

cd /etc

olive-gtk &

wait a few seconds/minutes ....

#qt 4.6 beta ppa for #ubuntu #karmic , soon I will upload #arora soon

Use it at your own risk https://edge.launchpad.net/~mapopa/+archive/qt4.6

I used the qt preview tp1 and sometimes it crashed so needed the new beta ,
I  tested it on my kde desktop + I will upload arora recompiled with 4.6 version soon

The arora from karmic should work ok with 4.6 too but maybe a
recompile is needed
before you upgrade is better to save your list of pachages

dpkg --get-selections > installed-software.log

then you can reinstall qt/kde packages from console if you have problems with (revert to qt 4.5.3 if you want)
with

sudo dpkg --set-selections < installed-software.log
sudo dselect

and press I to install all the packages saved

On my sistem i had before qt tp1 packages and in deb name i had "tp1" > "beta1" if you think as a
package manager so i had to remove all qt packages and kde too and
reinstall them

sudo apt-get purge libqtcore4

Then i did the steps from above

#nginx and #wsgi on #ubuntu howto

I wanted to install mod_wsgi for nginx on ubuntu here are some basic steps for compiling it


wget http://sysoev.ru/nginx/nginx-0.7.62.tar.gz

tar -zxvf nginx-0.7.62.tar.gz

hg clone http://hg.mperillo.ath.cx/nginx/mod_wsgi/

wget http://lophus.org/~fred/mod_wsgi_patch.diff

see why you need that patch

cd mod_wsgi/

patch -p1 < ../mod_wsgi_patch.diff

cd ..

cd nginx-0.7.62/
./configure --add-module=../mod_wsgi/ --with-debug
make
sudo make install

How can i use linux low level/posix api with #qt ?

well i was searching the google about the above question and i remembered that you can use c api in c++ like any other function

you can see these posix linux threads examples that can be compiled with c++ like this $ g++ -lpthread pthread1.c


Next step was to create a simple example with qt creator 
something like get_pid.c example from advanced linux programming book 


so after an empty gui project is created do small modification like this and run it 


it should give you no errors and it should print in the console the pid 

Starting /home/mariuz/work/qtgetpid/qtgetpid/qtgetpid...

/proc/self reports process id 7977

getpid() reports process id 7977