INSTALL

Copyright 1996, 1997, 1999-2002, 2006 Free Software Foundation, Inc.

This file is part of the GNU MP Library.

The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of either:

  * the GNU Lesser General Public License as published by the Free
    Software Foundation; either version 3 of the License, or (at your
    option) any later version.

or

  * the GNU General Public License as published by the Free Software
    Foundation; either version 2 of the License, or (at your option) any
    later version.

or both in parallel, as here.

The GNU MP Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received copies of the GNU General Public License and the
GNU Lesser General Public License along with the GNU MP Library.  If not,
see https://www.gnu.org/licenses/.





                          INSTALLING GNU MP
                          =================


These instructions are only for the impatient.  Others should read the install
instructions in gmp.info.  Use

	info -f doc/gmp.info

from the gmp source directory.

Here are some brief instructions on how to install GMP.  First you need to
compile.  Since you're impatient, try this

	./configure
	make
	make check		<= VERY IMPORTANT!!

If that fails, or you care about the performance of GMP, you need to read the
full instructions in the chapter "Installing GMP" in the manual.

You should not skip the "make check" part; the risk that the GMP sources are
miscompiled are unfortunately quite high.  And if they indeed are, "make check"
is very likely to trigger the compiler-introduced bug.

Optionally, you can install the library with the following command.  This will
be to /usr/local by default, and you'll probably need to be "root" to be able
to write there.

	make install

To create the printable documentation from the texinfo source, type "make
gmp.dvi" or "make gmp.ps".  This requires various "tex" commands.

If you are new to GMP, it is a good idea you at least read the chapter "GMP
Basics" in the manual.

Some known build problems are noted in the "Installing GMP" chapter of
the manual.  Please report other problems to gmp-bugs@gmplib.org.

The GMP web site is located here: https://gmplib.org/.


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