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//usr/share/doc/wireless-tools-28/INSTALL

Very important note :
-------------------
	This release of the Wireless Tools is not compatible with
Wireless Extensions earlier than 9. Version 9 and 10 should work fine
but are not recommended. Version 8 and earlier will not work.
	Kernels that support this version of the Wireless Tools are
listed below. For all kernels before that, see at the end.

You need :
--------
	o Compiler and development environment
	o A kernel supporting wireless extensions version 11 or higher
		-> from 2.4.4 onward (including 2.6.X)
		Note : CONFIG_NET_RADIO must be enabled
	o (Optional) A Pcmcia package supporting Wireless Extension
	o A driver supporting wireless extensions
		-> Check my web pages for status of various drivers.
	Note : more recent kernels and drivers are likely to support
		more wireless extension features...

Compile wireless tools :
----------------------
	In theory, a "make" should suffice to create the tools.

Installation :
------------
	"make install" should do the right thing for you, and install
the tools, their library and the man pages. You can also uninstall the
tools via "make uninstall".
	Note that the default installation is in the directory
'/usr/local/sbin'. This may not be in your path. Also, other version
of the tools may exist on the system, so double check which version is
the default and adjust your path as necessary.

Create a local copy of the tools :
--------------------------------
	By default, the package is built with iwlib as a dynamic
library, and the tool will expect to use the default version of libiw
on the system.
	If you just want to experiment with a "local" version of the
tools, you may want to pass the BUILD_STATIC flag to Makefile. It will
create a self contained version of the tools.
-------------
make clean
make BUILD_STATIC='y'
-------------
	The resulting binary can be used in the compilation directory
or installed in any place you like.

Wireless headers (past history) :
-------------------------------
	Previous version of the Wireless Tools had to be compiled with
the same version of Wireless Extension that the kernel was using, and
that was a major source of troubles.
	Starting with version 27, Wireless Tools include all the ugly
code to deal with any version of Wireless Extensions, so now you can
compile a single "generic" version of the tools for any kernel.
	Well, there are some limits, Wireless Extensions earlier than
v11 are not supported (v9 and v10 should work fine), and versions
later than the latest definition in the package are not
supported. Once compile, the command "iwconfig --version" should tell
you that.
	Note that the previous option to make versioned installed of
the tools no longer make sense and therefore is gone.

Other useful Makefile options :
-----------------------------
	PREFIX : where the tools will be installed (default : /usr/local)
	BUILD_STATIC : build tools with a static version of the wireless lib
	BUILD_NOLIBM : build tools without mathematical lib (slower)
	Note that you should pass the same command line options for
all invocations of make ("make" and "make install").

If you want the absolute minimal footprint, you may want to
look into the multicall version of the tools. You can build it with
"make iwmulticall" and install it with "make install-iwmulticall".

Old kernel with older Wireless Extensions :
-----------------------------------------
	Kernel prior to 2.2.14 : Those kernels include Wireless
Extensions v8 or earlier. Those versions don't have proper support for
802.11b, so are not very useful. You may want to consider upgrading.
	Kernel 2.2.19 to 2.2.25 : Those kernels include Wireless
Extensions v10. The tools should mostly work with it, but many drivers
won't. You can upgrade those kernel to WE v15 with a patch on my web
page.
	Kernel 2.2.14 to 2.2.18 : Those kernels include Wireless
Extensions v9. Same as above, you may want to upgrade to a later 2.2.X
kernel and then apply the patch.
	Kernel 2.0.X : Those kernels include very old version of
Wireless Extensions. Same deal as old 2.2.X kernels.

Jean <jt@hpl.hp.com>