163 lines
5.3 KiB
Plaintext
163 lines
5.3 KiB
Plaintext
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Notes on building Xenocara for OpenBSD X hackers
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This document presents some techniques that can be useful for people
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wanting to hack the xenocara tree. It assumes some basic knowledge of
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the OpenBSD build system, as described in the release(8) manual page.
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o About Xenocara
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--------------
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Xenocara is the name chosen for OpenBSD's version of X. It's
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currently based on X.Org 7.2 and its dependencies. The goal of
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Xenocara is to provide a framework to host local modifications and to
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automate the build of the modular X.Org components, including 3rd
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party packages and some software maintained by OpenBSD developers.
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o Source tree
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-----------
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The organisation of the xenocara directory follows the general
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organisation used in X.Org:
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- app: X applications and utilities
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- data: various data files (keyboard mappings and bitmaps)
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- doc: documentation
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- driver: input and video drivers
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- font: fonts
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- lib: libraries
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- proto: X protocol headers
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- util: utilities that don't fit anywhere else
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- xserver: the source for the X servers
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In addition Xenocara uses the following directories:
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- dist: contains the Mesa sources, shared by lib and xserver above
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- distrib: all binary distribution related tools and data
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- etc: mtree(8) data files
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- share: make(1) configuration for Xenocara
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At the top-level directory two files describe the individual
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components of Xenocara:
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- MODULES lists all X.Org components (imported from the X.Org
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distribution at http://xorg.freedesktop.org/archive/)
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- 3RDPARTY lists all 3rd party software components provided in Xenocara,
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either as dependencies of the X.Org software, or as
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complements to it to provide a more useable default
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environment.
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o Compiling and installing
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------------------------
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Xenocara is made up of more than three hundred different
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independent packages that need to be build and installed in the right
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order, especially while bootstrapping (while /usr/X11R6 is still
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empty). The Xenocara Makefiles take care of that using the 'build'
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target.
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Quick startup guide
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The following steps will build and install everything for the first time.
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mkdir -p /usr/xobj
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cd xenocara
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make bootstrap
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make obj
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make build
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If you want to use another obj directory see below.
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Requirements
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A freshly checked out xenocara tree is buildable without any external
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tool. However if you start modifying things in the automake build
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system used by many packages, you will need to have the following
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GNU autotools packages installed:
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- automake 1.9 (devel/automake/1.9)
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- autoconf 2.59 (devel/autoconf/2.59)
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- metaauto 0.6 (or later) (devel/metaauto)
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- libtool 1.5.22 (or later) (devel/libtool)
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Path
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To build Xenocara, you need to have /usr/X11R6/bin in your PATH.
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Sudo
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If the SUDO variable points to your sudo(8) binary in /etc/mk.conf,
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'make build' can be run as a normal user. It will raise its privileges
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whenever needed with sudo. Otherwise, you need to run make build as
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root.
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If you have installed the full Xenocara X sets on your system, you
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don't need to build all of Xenocara to patch one element. You can go
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to any module sub-directory and run 'make build' from there.
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Source directory
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The variable XSRCDIR can be set either in the environment or in
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/etc/mk.conf to point to the xenocara source tree, in case you keep it
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in a non-standard directory (the default is /usr/src/xenocara).
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Objdirs
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Xenocara supports objdirs (and it's even the recommended way to build
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things). Just run 'make obj' at any level before 'make build' to make
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sure that the object directories are created.
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XOBJDIR defines the obj directory that is used (defaults to /usr/xobj).
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It should be created before running 'make obj'.
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Shadow trees
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Alternatively, the old 'lndir(1)' method can still be used to build
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Xenocara outside of its source tree. Just don't use 'make obj' in this
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case.
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o Regenerating configure scripts
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------------------------------
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Whenever you touched an import file for GNU autotools (Makefile.am,
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configure.ac mostly), you need to rebuild the configure script and
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makefiles skeletons. For that use the following command in the
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directory where you edited the autotools source files:
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env XENOCARA_RERUN_AUTOCONF=Yes make -f Makefile.bsd-wrapper build
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You can also set XENOCARA_RERUN_AUTOCONF in /etc/mk.conf or in the
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environment to force the regeneration of configure scripts
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in every component during a make build.
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o Cleaning in packages managed by autotools
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-----------------------------------------
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One common problem when building xenocara is the case where the obj
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directory didn't exist (or the symbolic link pointed to a non-existent
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directort) when the source was first build. After fixing this problem,
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'configure' will refuse to work in the obj dir, because the source
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is already configured.
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To recover from this in one package:
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rm -f obj
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make -f Makefile.bsd-wrapper cleandir
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mkdir XOBJDIR
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make -f Makefile.bsd-wrapper obj
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make -f Makefile.bsd-wrapper build
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or from the root of the xenocara tree:
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find . -type l -name obj | xargs rm -f
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make cleandir
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mkdir XOBJDIR
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make obj
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make build
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for more desesperate cases, remove all files from XSRCDIR not in CVS:
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cd XSRCDIR
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cvs -q update -PAd -I - | awk '$1=="?" {print $2}' | xargs rm -f
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--
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$OpenBSD: README,v 1.15 2007/04/07 13:35:06 matthieu Exp $
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