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@c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.

@c This is part of the GCC manual.

@c For copying conditions, see the file install.texi.

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@node    Old, GNU Free Documentation License, Specific, Top

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<h1 align="center">Old installation documentation</h1>

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@chapter Old installation documentation

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Note most of this information is out of date and superseded by the

previous chapters of this manual.  It is provided for historical

reference only, because of a lack of volunteers to merge it into the

main manual.

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* Configurations::    Configurations Supported by GCC.

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Here is the procedure for installing GCC on a GNU or Unix system.

@enumerate

@item

If you have chosen a configuration for GCC which requires other GNU

tools (such as GAS or the GNU linker) instead of the standard system

tools, install the required tools in the build directory under the names

@file{as}, @file{ld} or whatever is appropriate.

Alternatively, you can do subsequent compilation using a value of the

@code{PATH} environment variable such that the necessary GNU tools come

before the standard system tools.

@item

Specify the host, build and target machine configurations.  You do this

when you run the @file{configure} script.

The @dfn{build} machine is the system which you are using, the

@dfn{host} machine is the system where you want to run the resulting

compiler (normally the build machine), and the @dfn{target} machine is

the system for which you want the compiler to generate code.

If you are building a compiler to produce code for the machine it runs

on (a native compiler), you normally do not need to specify any operands

to @file{configure}; it will try to guess the type of machine you are on

and use that as the build, host and target machines.  So you don't need

to specify a configuration when building a native compiler unless

@file{configure} cannot figure out what your configuration is or guesses

wrong.

In those cases, specify the build machine's @dfn{configuration name}

with the @option{--host} option; the host and target will default to be

the same as the host machine.

Here is an example:

@smallexample

./configure --host=sparc-sun-sunos4.1

@end smallexample

A configuration name may be canonical or it may be more or less

abbreviated.

A canonical configuration name has three parts, separated by dashes.

It looks like this: @samp{@var{cpu}-@var{company}-@var{system}}.

(The three parts may themselves contain dashes; @file{configure}

can figure out which dashes serve which purpose.)  For example,

@samp{m68k-sun-sunos4.1} specifies a Sun 3.

You can also replace parts of the configuration by nicknames or aliases.

For example, @samp{sun3} stands for @samp{m68k-sun}, so

@samp{sun3-sunos4.1} is another way to specify a Sun 3.

You can specify a version number after any of the system types, and some

of the CPU types.  In most cases, the version is irrelevant, and will be

ignored.  So you might as well specify the version if you know it.

See @ref{Configurations}, for a list of supported configuration names and

notes on many of the configurations.  You should check the notes in that

section before proceeding any further with the installation of GCC@.

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@section Configurations Supported by GCC

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<h2>@anchor{Configurations}Configurations Supported by GCC</h2>

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@cindex configurations supported by GCC

Here are the possible CPU types:

@quotation

@c gmicro, fx80, spur and tahoe omitted since they don't work.

1750a, a29k, alpha, arm, avr, c@var{n}, clipper, dsp16xx, elxsi, fr30, h8300,

hppa1.0, hppa1.1, i370, i386, i486, i586, i686, i786, i860, i960, ip2k, m32r,

m68000, m68k, m6811, m6812, m88k, mcore, mips, mipsel, mips64, mips64el,

mn10200, mn10300, ns32k, pdp11, powerpc, powerpcle, romp, rs6000, sh, sparc,

sparclite, sparc64, v850, vax, we32k.

@end quotation

Here are the recognized company names.  As you can see, customary

abbreviations are used rather than the longer official names.

@c What should be done about merlin, tek*, dolphin?

@quotation

acorn, alliant, altos, apollo, apple, att, bull,

cbm, convergent, convex, crds, dec, dg, dolphin,

elxsi, encore, harris, hitachi, hp, ibm, intergraph, isi,

mips, motorola, ncr, next, ns, omron, plexus,

sequent, sgi, sony, sun, tti, unicom, wrs.

@end quotation

The company name is meaningful only to disambiguate when the rest of

the information supplied is insufficient.  You can omit it, writing

just @samp{@var{cpu}-@var{system}}, if it is not needed.  For example,

@samp{vax-ultrix4.2} is equivalent to @samp{vax-dec-ultrix4.2}.

Here is a list of system types:

@quotation

386bsd, aix, acis, amigaos, aos, aout, aux, bosx, bsd, clix, coff, ctix, cxux,

dgux, dynix, ebmon, ecoff, elf, esix, freebsd, hms, genix, gnu, linux,

linux-gnu, hiux, hpux, iris, irix, isc, luna, lynxos, mach, minix, msdos, mvs,

netbsd, newsos, nindy, ns, osf, osfrose, ptx, riscix, riscos, rtu, sco, sim,

solaris, sunos, sym, sysv, udi, ultrix, unicos, uniplus, unos, vms, vsta,

vxworks, winnt, xenix.

@end quotation

@noindent

You can omit the system type; then @file{configure} guesses the

operating system from the CPU and company.

You can add a version number to the system type; this may or may not

make a difference.  For example, you can write @samp{bsd4.3} or

@samp{bsd4.4} to distinguish versions of BSD@.  In practice, the version

number is most needed for @samp{sysv3} and @samp{sysv4}, which are often

treated differently.

@samp{linux-gnu} is the canonical name for the GNU/Linux target; however

GCC will also accept @samp{linux}.  The version of the kernel in use is

not relevant on these systems.  A suffix such as @samp{libc1} or @samp{aout}

distinguishes major versions of the C library; all of the suffixed versions

are obsolete.

If you specify an impossible combination such as @samp{i860-dg-vms},

then you may get an error message from @file{configure}, or it may

ignore part of the information and do the best it can with the rest.

@file{configure} always prints the canonical name for the alternative

that it used.  GCC does not support all possible alternatives.

Often a particular model of machine has a name.  Many machine names are

recognized as aliases for CPU/company combinations.  Thus, the machine

name @samp{sun3}, mentioned above, is an alias for @samp{m68k-sun}.

Sometimes we accept a company name as a machine name, when the name is

popularly used for a particular machine.  Here is a table of the known

machine names:

@quotation

3300, 3b1, 3b@var{n}, 7300, altos3068, altos,

apollo68, att-7300, balance,

convex-c@var{n}, crds, decstation-3100,

decstation, delta, encore,

fx2800, gmicro, hp7@var{nn}, hp8@var{nn},

hp9k2@var{nn}, hp9k3@var{nn}, hp9k7@var{nn},

hp9k8@var{nn}, iris4d, iris, isi68,

m3230, magnum, merlin, miniframe,

mmax, news-3600, news800, news, next,

pbd, pc532, pmax, powerpc, powerpcle, ps2, risc-news,

rtpc, sun2, sun386i, sun386, sun3,

sun4, symmetry, tower-32, tower.

@end quotation

@noindent

Remember that a machine name specifies both the cpu type and the company

name.

If you want to install your own homemade configuration files, you can

use @samp{local} as the company name to access them.  If you use

configuration @samp{@var{cpu}-local}, the configuration name

without the cpu prefix

is used to form the configuration file names.

Thus, if you specify @samp{m68k-local}, configuration uses

files @file{m68k.md}, @file{local.h}, @file{m68k.c},

@file{xm-local.h}, @file{t-local}, and @file{x-local}, all in the

directory @file{config/m68k}.