config man page on 4.4BSD

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CONFIG.NEW(8)		  BSD System Manager's Manual		 CONFIG.NEW(8)

NAME
     config.new — build kernel compilation directories

SYNOPSIS
     config [-p] system-name

DESCRIPTION
     This is the new version of the config program.  It understands the more
     modern autoconfiguration scheme used on the SPARC and i386 platforms.
     The old version of config is still used with the HP300, DECstation, and
     derivative platforms.  Only the version of config applicable to the
     architecture that you are running will be installed on your machine.

     Config builds a set of configuration files from the file system-name,
     which describes the system to configure.

     Config should run from the conf subdirectory of the top-level machine-
     specific directory of the system source (usually /sys/MACHINE/conf, where
     MACHINE is one of vax, tahoe, hp300, and so forth).  Config assumes the
     directory ../../compile exists; it places all output files in a subdirec‐
     tory there, creating the subdirectory if necessary.  The subdirectory
     name is taken from the system-name; thus, configuring with “config
     PICKLE” will use the directory ../../compile/PICKLE.

     If the -p option is supplied, .PROF is appended to the compilation direc‐
     tory name, and config acts as if the lines “makeoptions PROF="-pg"” and
     “options GPROF” appeared in the configuration file.  This will build a
     system that includes profiling code; see kgmon(8) and gprof(1).  The -p
     flag is expected to be used for “one-shot” profiles of existing systems;
     for regular profiling, it is probably wiser to make a separate configura‐
     tion containing the makeoptions line.

     The old undocumented -g flag is no longer supported.  Instead, use
     “makeoptions DEBUG="-g"” and (typically) “options KGDB”.

     The output of config consists of a number of files, principally ioconf.c,
     a description of I/O devices that may be attached to the system; and a
     Makefile, used by make(1) in building the kernel.

     After running config, it is wise to run “make depend” in the directory
     where the new makefile was created.  Config prints a reminder of this
     when it completes.

     If config stops due to errors, the problems reported should be corrected
     and config should be run again.  Config attempts to avoid changing the
     compilation directory if there are configuration errors, but this code is
     not well-tested, and some problems (such as running out of disk space)
     are unrecoverable.

SEE ALSO
     The SYNOPSIS portion of each device in section 4.

     Building 4.4 BSD Systems with Config.

     config(8)

HISTORY
     The config.new command appeared in 4.1BSD.	 It was completely revised in
     4.4BSD.

4th Berkeley Distribution	April 19, 1994	     4th Berkeley Distribution
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