===============================================================================
 JB, the Jean-Yves Lefort's Build System
===============================================================================

Index

	0. About this document
	1. Motivation
	2. Dependencies
	3. Customizing the bootstrap compilation
	4. Log files
	5. Redirecting the installation

0. About this document

	$Id: README,v 1.3 2008-04-25 22:58:19 jylefort Exp $

	Copyright (C) 2008 Jean-Yves Lefort.

	Permission is granted to copy, distribute and/or modify this
	document under the terms of the GNU Free Documentation License
	(GFDL), Version 1.2 or any later version published by the Free
	Software Foundation with no Invariant Sections, no Front-Cover
	Texts, and no Back-Cover Texts. You can find a copy of the
	GFDL at http://www.gnu.org/licenses/fdl.html or in the file
	COPYING-DOCS distributed with this manual.

1. Motivation

	JB is the result of my long-standing dissatisfaction with the
	GNU Autotools. It makes my programmer's life easier, for
	reasons that I will not bother enumerating here.

2. Dependencies

	Regardless of the package dependencies, JB requires a C
	compiler and the GLib library (version 2.8 or superior).

3. Customizing the bootstrap compilation

	The first time ./jb is run, it bootstraps itself by compiling
	the real JB program, which is written in C. If you need to
	influence the way this program is compiled, you can set the
	jb_cc, jb_cflags, jb_cppflags, jb_ldflags and jb_libs
	environment variables, for instance:

		jb_cc=gcc jb_cflags=-g ./jb configure

	Note that these environment variables are only used to compile
	the JB program. To specify compilation options for the
	package, use:

		./jb configure cc=gcc cflags=-g

4. Log files

	You can check what JB is doing by reviewing the build/*.log
	files. Each action has its own log file (configure.log,
	build.log, ...).

5. Redirecting the installation

	A number of packaging systems rely on the Automake DESTDIR
	facility, which allows to install the package in a temporary
	directory rather than directly in its final location.

	JB supports that functionality. To redirect the installation
	to a different directory, pass the destdir variable to the
	configure stage, for instance:

		./jb configure destdir=/my/temp/dir

	As with Automake, the destdir setting does not influence the
	idea that the package has of its installation location.