Building GMPY2 on Windows

=========================



Note 1

------

Visual Studio 2010 is used to compile GMPY2. Since no objects that use the C

runtime are passed between Python and GMPY2, there shouldn't be any issues

using a different compiler. (At least, I think so....)



Note 2

------

To avoid creating a large number of spurious errors, it's best to disable

parallel builds in Visual Studio. To change this option, goto

"Tools">"Options">"Projects and Solutions">"Build and Run".



1) Download and unzip MPIR. To follow these instructions, the unzipped files

   should be located in C:\src\mpir. Follow the instructions in:

      C:\src\mpir\build.vc10\readme.txt



2) Download and unzip MPFR. To follow these instructions, the unzipped files

   should be located in C:\src\mpfr.



3) Download and install the VS 2010 solution files for MPFR from:

      http://gladman.plushost.co.uk/oldsite/computing/gmp4win.php



4) Create the following directories:



   > mkdir c:\src\32

   > mkdir c:\src\32\lib

   > mkdir c:\src\32\include

   > mkdir c:\src\64

   > mkdir c:\src\64\lib

   > mkdir c:\src\64\include



5) Download and unzip GMPY2. To follow these instructions, the unzipped files

   should be located in C:\src\gmpy2-2.0.0a2.



6) Open C:\src\mpir\build.vc10\mpir.sln. Choose "Release"/"Win32" or

   "Release"/"x64" as appropriate. Then use "Build">"Configuration Manager"

   to select the desired CPU option. Then "Build Solution". Copy the library

   files to C:\src\32 or C:\src\64.



   For 32-bit build

   > copy c:\src\mpir\build.vc10\lib\Win32\Release\mpir.??b c:\src\32\lib

   > copy c:\src\mpir\build.vc10\lib\Win32\Release\mpir.h c:\src\32\include



   For 64-bit build

   > copy c:\src\mpir\build.vc10\lib\x64\Release\mpir.??b c:\src\64\lib

   > copy c:\src\mpir\build.vc10\lib\x64\Release\mpir.h c:\src\64\include



7) Open C:\src\mpfr\build.vc10\lib_mpfr.sln. Choose "Release"/"Win32" or

   "Release"/"x64" and then "Build Solution". Copy the library files to

   C:\src\32 or C:\src\64.



   For 32-bit build

   > copy c:\src\mpfr\build.vc10\lib\Win32\Release\mpfr.??b c:\src\32\lib

   > copy c:\src\mpfr\mpfr.h c:\src\32\include



   For 64-bit build

   > copy c:\src\mpfr\build.vc10\lib\x64\Release\mpfr.??b c:\src\64\lib

   > copy c:\src\mpfr\mpfr.h c:\src\64\include



8) The final compilation of GMPY2 is done from the command prompt.



   1a) Configure the environment for 64-bit builds.

   "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\vcvars64.bat"



   1b) Configure the environment for 32-bit builds.

   "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\vcvars32.bat"



   2) Convince setup.py to use the SDK tools.

   set MSSdk=1

   set DISTUTILS_USE_SDK=1



   3) Build and install gmpy2.

   python setup.py build_ext -Ddir=c:\src\32 install



   -- or --

   python setup.py build_ext -Ddir=c:\src\64 install



   4) (Optional) Build an installer.

   python setup.py bdist_wininst