Creating a new package from scratch

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This example shows how to create a new helloworld package from scratch.

Contents

[edit] Create the development directory structure for the helloworld package

Before writing the code for the helloworld program, the directory structure for the helloworld package is first created:

[edit] Creating a project directory for the package 

cd ~/
mkdir helloworld
cd ~/helloworld

[edit] Create the development subdirectories for the new package

Next the directory infrastructure for the source code and supplementary files is created: 

mkdir src

[edit] Create the source code files for the helloworld package

The development subdirectories for the helloworld package have been created. The next step is to make the package source directory current: 

cd ~/helloworld/src

The hello.c source file for the new package can now be created: 

/*
  * hello.c
  * This program outputs a message to the terminal
  *
  * (C) Copyright 2004 Mark Hobley
  *
  * This is free software. This file can be redistributed or modified
  * under the terms of the GNU General Public Licence (Version 2)
  * as published by the Free Software Foundation.
  *
*/

#include <stdio.h>

main ()
{
  printf("Hello World!");
  return(0);
}

[edit] Create the Makefile.am file for the helloworld package

The Makefile.am file is used by the automake tool to create the project makefile entries used by the build scripts.

[edit] Create the Makefile.am file for the package sources

Make the source directory current before creating the makefile: 

cd ~/helloworld/src
vi Makefile.am

Create the Makefile.am file as follows: 

bin_PROGRAMS = hello
hello_SOURCES = hello.c

[edit] Use autoscan to scan the source code

[edit] Make the helloworld project directory current

Before using the autoscan tool, first make the helloworld project directory current: 

cd ~/helloworld

[edit] Run the autoscan tool

Now run the autoscan tool: 

autoscan

[edit] Create the configure.ac file

The autoscan tool will create a configure.scan file. Copy this file to create a configure.ac file for use by the autoconf tool as follows:

cp configure.scan configure.ac

[edit] Configure the package name and version number

The generated configure.ac file requires modification to change the default package name, version number and bug report email address information: 

vi configure.ac

AC_INIT(FULL-PACKAGE-NAME, VERSION, BUG-REPORT-ADDRESS)

Modify these entries as follows: 

AC_INIT(The helloworld example, 1.0.0, bugs-helloworld@foobar.com)
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