File: INSTALL

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python-gmpy2 2.1.0~a4-1
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Installing gmpy2 on Unix/Linux
------------------------------

Many Linux distributions provide gmpy2 in their repositories. Please check
your distribution's repositories first.

Requirements
------------

gmpy2 requires recent versions of GMP, MPFR and MPC. Specifically, gmpy2
requires GMP 5.0.0 or later, MPFR 3.1.0 or later, and MPC 1.0.0 or later.

Quick Instructions
------------------

To manually compile gmpy2, you will need to install the development libraries
for Python, GMP, MPFR, and MPC are installed. The package names vary between
distributions. "python-dev", "python2-dev", or "python3.4-dev" are typical
package names for the Python development files. Installing the MPC development
package should automatically install the GMP and MPFR development packages.
"libmpc-dev" is a typical name for the MPC development package.

Once the required development libraries have been installed, compiling should
be as simple as:

    $ cd <gmpy2 source directory>
    $ python setup.py build_ext
    $ sudo python setup.py install

If this fails, read on.

Detailed Instructions
---------------------

If your Linux distribution does not support recent versions of GMP, MPFR and
MPC, you will need to compile your own versions. To avoid any possible conflict
with existing libraries on your system, it is recommended to build a statically
linked version of gmpy2. The following instructions assume the GMP, MPFR, MPC,
and gmpy2 source files are all located in $HOME/src and the static libraries
are installed into $HOME/static

1. Create the desired destination directory for the GMP, MPFR, and MPC
   libraries.

    $ mkdir $HOME/static

2. Download and un-tar the GMP source code. Change to GMP source directory and
   compile GMP.

    $ cd $HOME/src/gmp-6.0.0
    $ ./configure --prefix=$HOME/static --enable-static --disable-shared --with-pic
    $ make
    $ make check
    $ make install

3. Download and un-tar the MPFR source code. Change to MPFR source directory
   and compile MPFR.

    $ cd $HOME/src/mpfr-3.1.2
    $ ./configure --prefix=$HOME/static --enable-static --disable-shared --with-pic --with-gmp=$HOME/static
    $ make
    $ make check
    $ make install

4. Download and un-tar the MPC source code. Change to MPC source directory
   and compile MPC.

    $ cd $HOME/src/mpc-1.0.3
    $ ./configure --prefix=$HOME/static --enable-static --disable-shared --with-pic --with-gmp=$HOME/static --with-mpfr=$HOME/static
    $ make
    $ make check
    $ make install

5. Compile gmpy2 and specify the location of GMP, MPFR and MPC.

    $ cd $HOME/src/gmpy2-2.1.0
    $ python setup.py build_ext --static=$HOME/static install

If you get a "permission denied" error message, you may need to use:

    $ python setup.py build_ext --static=$HOME/static
    $ sudo python setup.py install

Installing gmpy2 on Windows
---------------------------

Please see windows_build.txt (preferred) or msys2_build.txt (alpha).