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Eelco Dolstra 0ef4b6d0f8 * Cleaned up the semantics of Fix expressions.
* Conditionals and variables in Fix expressions.  This allows, e.g.,

    Descr(
    [ Bind("pkgId", "subversion-0.21.0")

    , Bind("httpsClient", Bool(True))
    , Bind("httpServer", Bool(True))

    , Bind("ssl", If(Var("httpsClient"), Fix("./openssl-0.9.7b.fix"), ""))

    , Bind("httpd", If(Var("httpServer"), Fix("./httpd-2.0.45.fix"), ""))
    ...
    ])

  which introduces domain feature variables httpsClient and httpServer
  (i.e., whether Subversion is built with https client and webdav
  server support); the values of the variables influences package
  dependencies and the build scripts.

  The next step is to allow that packages can express constraints on
  each other.  E.g., StrategoXT is dependent on an ATerm library with
  the "gcc" variant enabled.  In fact, this may cause several
  Nix instantiations to be created from a single Fix descriptor.  If
  possible, Fix should try to find the least set of instantiations
  that obeys the constraints.
2003-04-25 15:33:50 +00:00
pkg * Fetch sources from the network. 2003-03-21 14:10:06 +00:00
scripts * Bug fix: deleting the old links didn't work properly. 2003-04-25 15:20:05 +00:00
src * Cleaned up the semantics of Fix expressions. 2003-04-25 15:33:50 +00:00
sys * Improved Nix. Resources (package descriptors and other source 2003-03-14 16:43:14 +00:00
test * Cleaned up the semantics of Fix expressions. 2003-04-25 15:33:50 +00:00
AUTHORS * Autoconf / Automake configuration and building. 2003-04-04 16:14:56 +00:00
ChangeLog * Autoconf / Automake configuration and building. 2003-04-04 16:14:56 +00:00
configure.ac * We no longer use nix-populate standalone, rather we use it as a 2003-04-09 12:26:48 +00:00
COPYING * Autoconf / Automake configuration and building. 2003-04-04 16:14:56 +00:00
INSTALL * Autoconf / Automake configuration and building. 2003-04-04 16:14:56 +00:00
Makefile.am * We no longer use nix-populate standalone, rather we use it as a 2003-04-09 12:26:48 +00:00
NEWS * Autoconf / Automake configuration and building. 2003-04-04 16:14:56 +00:00
README * Added some installation instructions to the readme. 2003-04-08 12:13:57 +00:00

Overview
========

Nix is a package manager, deployment system, and component glue
mechanism.


Prerequisites
=============

* Berkeley DB 4.0.14
* CWI ATerm 2.0


Installation
============

* When building from the Subversion repository, first do:

    autoreconf -i

* To build, do:

    ./configure
    make
    make install

  Note that this will install to /nix, which is the default prefix.
  You can specify another prefix, but this is not recommended if you
  want to use prebuilt packages from other sources.


Usage
=====

TODO