Install SystemC 2.3.0 in Mint 13/Fedora

Thanks to these tips from http://archive.pfb.no/2010/10/13/systemc-ubuntu-1010/ and http://noxim.sourceforge.net/pub/Noxim_User_Guide.pdf.

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Begin borrowed material

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Step 0: Prepare.

Obviously, you need to have a compiler. Do this step in case you haven't done so.

$ sudo apt-get install build-essential

Step 1: Download.

Next: register, and download from http://www.systemc.org using your Web browser then unpack it....but the tgz file has wrong extension. Do these steps to unpack the file:

$ mv systemc-2.2.0.tgz systemc-2.3.0.tar
$ tar xvf systemc-2.3.0.tar

In any case, create a build directory and enter into it for the following steps:

$ cd systemc-2.3.0
$ sudo mkdir /usr/local/systemc
$ mkdir objdir
$ cd objdir
$ export CXX=g++
$ sudo ../configure --prefix=/usr/local/systemc CPPFLAGS=-fpermissive

Step 2: Compile

$ make
$ sudo make install
$ make check
$ cd ..
$ rm -rf objdir

The command make check is optional. What is does is to compile SystemC source files to see if the files can run. I strongly suggest that you run it.

Step 3: Tell your compiler where to find SystemC

Since we do not install SystemC with a standard location we need to specifically tell the compiler where to look for the libraries. We do this with an environment variable.

$ export SYSTEMC=/usr/local/systemc/

This, however will disappear on the next login. To permanently add it to your environment, alter ~/.profile or ~/.bash_profile if it exists. For system wide changes, edit /etc/environment. (newline with expression: SYSTEMC_HOME=”/usr/local/systemc/“) To compile a systemC program simply use this expression:

$ g++ -I. -I$SYSTEMC/include -L. -L$SYSTEMC/lib-linux -o OUTFILE INPUT.cpp -lsystemc -lm

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End borrowed/adapted material

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HOWEVER, version 2.3.0 is not really ready. Any problems...you're on your own, since it's so new. That's why I'm back at 2.2.0.

FFMPEG with x264: another option

http://ubuntuforums.org/showthread.php?t=786095

Linux Mint lebih popular dari Ubuntu

Mengikut perangkaan lelaman DistroWatch, Linux Mint telah mengatasi kepopularan Ubuntu. Ketua Linux Mint, Clint Lefevre, mengakui Linux Mint meningkat 40% pada bulan lepas, dan kebanyakan pengguna berasal dari Ubuntu. Di lelaman Linux Mint, dinyatakan pengguna Linux Mint sekitar 1/3 pengguna Ubuntu, menjadikannya OS keempat paling popular selepas Windows, Mac OS X dan Ubuntu.

Oh ya, saya dah menggunakannya selama dua minggu, sebelum menyedari ia begitu popular!! Saya memilih Linux Mint kerana ia tidak mempunyai 'buntu' dalam namanya....

GCC 4.6 breaks SystemC

When upgrading to Ubuntu 11.10, SystemC programs won't work anymore.
Update your makefiles to include the -fpermissive flag, like so:

SYSTEMC=/usr/local/systemc
LDFLAGS= -L$(SYSTEMC)/lib-linux -lsystemc
CXXFLAGS=-Wno-deprecated -I$(SYSTEMC)/include -fpermissive

all:
 g++ $(CXXFLAGS) *.cpp $(LDFLAGS)
 ./a.out

You may need to recompile the SystemC library, which case the flag must be added to the configure command:

$ sudo ../configure --prefix=/usr/local/systemc CPPFLAGS=-fpermissive

By giving the syntax above, I also managed to get SystemC running in Fedora. Goodbye Ubuntu!

Removing unneeded Ubuntu kernels

The command line way:

sudo apt-get remove --purge 2.6.2x-xx-*

where x is the old kernel version subversion numbers. Before that you need to give

uname -r

to find the current version and dont remove that.

Install SystemC 2.2.0 on Ubuntu 11.04

Thanks to these tips from http://archive.pfb.no/2010/10/13/systemc-ubuntu-1010/ and http://noxim.sourceforge.net/pub/Noxim_User_Guide.pdf, I was able to install SystemC on 11.04 Natty Narwhal.

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Begin borrowed material

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Step 0: Prepare.

Obviously, you need to have a compiler. Do this step in case you haven't done so.

$ sudo apt-get install build-essential

Step 1: Download.

Next: register, and download from http://www.systemc.org using your Web browser then unpack it....but the tgz file has wrong extension. Do these steps to unpack the file:

$ mv systemc-2.2.0.tgz systemc-2.2.0.tar
$ tar xvf systemc-2.2.0.tar

Alternatively, download the file using wget from another site with the correct extension:

$ wget http://panoramis.free.fr/search.systemc.org/?download=sc220/systemc-2.2.0.tgz
$ tar xvfz systemc-2.2.0.tgz

Ooops! Turns out you can't use wget. Copy the URL to your browser location bar, answer a simple a question and the file will be downloaded. In any case, no need to reveal you email for this option!

In any case, create a build directory and enter into it for the following steps:

$ cd systemc-2.2.0
$ sudo mkdir /usr/local/systemc
$ mkdir objdir
$ cd objdir
$ export CXX=g++
$ sudo ../configure --prefix=/usr/local/systemc CPPFLAGS=-fpermissive

Step 2: Patch.

Using new versions of GCC such as GCC 4.4, we will fail to compile because 2 lines of code were left out of systemc-2.2.0/src/sysc/utils/sc_utils_ids.cpp.

Method 1: You can just just open the file and add these includes at the top of the file (after the header comments):

#include "cstdlib"
#include "cstring"
#include "sysc/utils/sc_report.h"

Replace the " signs with less than and greater than signs (because this blog site treats the the pair of characters as HTML tags).

Method 2: You patch it using a prewritten patch file.

$ wget http://www.pfb.no/files/systemc-2.2.0-ubuntu10.10.patch
$ patch -p1 < ../systemc-2.2.0-ubuntu10.10.patch

Method 3: Patch it using sed:

$ sed -i '1 i #include "cstdlib"\n#include "cstring"' ../src/sysc/utils/sc_utils_ids.cpp

Step 3: Compile

$ make
$ sudo make install
$ make check
$ cd ..
$ rm -rf objdir

The command make check is optional. What is does is to compile SystemC source files to see if the files can run. I strongly suggest that you run it.

Step 4: Tell your compiler where to find SystemC

Since we do not install SystemC with a standard location we need to specifically tell the compiler where to look for the libraries. We do this with an environment variable.

$ export SYSTEMC=/usr/local/systemc/

This, however will disappear on the next login. To permanently add it to your environment, alter ~/.profile or ~/.bash_profile if it exists. For system wide changes, edit /etc/environment. (newline with expression: SYSTEMC_HOME=”/usr/local/systemc/“) To compile a systemC program simply use this expression:

$ g++ -I. -I$SYSTEMC/include -L. -L$SYSTEMC/lib-linux -o OUTFILE INPUT.cpp -lsystemc -lm

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End borrowed material

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I still could not get SystemC installed in Fedora. :(

Handbrake for Linux

$ maczulu@ubuntu:~$ sudo add-apt-repository ppa:stebbins/handbrake-releases
$ maczulu@ubuntu:~$ sudo apt-get update
$ maczulu@ubuntu:~$ sudo apt-get install handbrake

To run it from the command line, enter:

$ ghb &

How intiutive is that? Anyhow, it's available form the Application menu.

Installing OpenCV 2.2 in Ubuntu 11.04

Instructions by Sebastian Montabone, author Beginning Digital Image Processing: Using Free Tools for Photographers are here:

• Installing OpenCV 2.2 in Ubuntu 11.04

Install GNOME 3 on Ubuntu 11.04

Open the terminal and run the following commands

sudo add-apt-repository ppa:gnome3-team/gnome3
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get install gnome-shell

Minimal RAR in Ubuntu

RAR is a common file format used for files distributed through the Net. Here's how to install it in Ubuntu.

$ sudo apt-get install rar

Creating an archive:

$ rar a archivename.rar files...

Add as many files & directories as you want.

Creating an archive with password:

$ rar a -ppassword archivename.rar files...

There is no space between -p and the password itself.

To extract, click on the right-mouse-button and use Archive Manager to extract.

Of course, for more advanced uses, refer to the RAR in Ubuntu Manual.

How to install pyqt4 on ubuntu linux

Install and run "hello world" example

• Install it
  

$ sudo apt-get install python-qt4

• Create a file ~/tmp/helloworld.py

import sys
from PyQt4.QtGui import *
app = QApplication(sys.argv)
button = QPushButton("Hello World", None)
button.show()
app.exec_()

• Run it:

$ python ~/tmp/helloworld.py

You should see a window with a single button pop up.

Install additional examples

• For more examples, install the python-qt4-doc package: 
  

$ sudo apt-get install python-qt4-doc

• After installation, the examples are located at: 

/usr/share/doc/python-qt4-doc/examples