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This page briefly documents how to configure MATLAB for Windows when a MEX compilation environment is required. Under Linux and MacOS, this configuration step is not necessary, because these operating systems already come with a working compilation environment (using g++). This page briefly documents how to configure MATLAB for Windows when a MEX compilation environment is required. Under Linux and MacOS, this configuration step is not necessary, because these operating systems already come with a working compilation environment (using gcc).

Two compilers are currently supported: GNU C compiler (gcc) from Cygwin, and Microsoft Visual C++ (MSVC).
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 * you want to use the {{{USE_DLL}}} option of {{{model}}}, or the {{{k_order_solver}}} option of {{{stoch_simul}}}  * you want to use the {{{USE_DLL}}} option of {{{model}}}, or the {{{k_order_solver}}} option of {{{stoch_simul}}} (with Dynare 4.1 only). In that case, you need to tell Dynare which compiler you are using:
   * if you are using Cygwin, type at the MATLAB prompt:
   {{{
dynare modfilename cygwin
   }}}
   * if you are using Microsoft Visual C++:
   {{{
dynare modfilename msvc
   }}}
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We describe here the installation of two compilers: GNU C++ compiler (g++), and Microsoft Visual C++ (MSVC). = Configuring MATLAB with GNU C compiler (gcc) from Cygwin =
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Note that for {{{USE_DLL}}} and {{{k_order_solver}}}, the only supported compiler is g++

= Configuring MATLAB with GNU C++ compiler (g++) =

 * Install a Cygwin environment (see http://www.cygwin.com). You need at least the following packages: gcc, gcc-g++, gcc-mingw, gcc-mingw-g++
 * Download [[attachment:mexopts.bat]], and put it in {{{c:\Documents and Settings\<User name>\Application Data\MathWorks\MATLAB\<release number>\}}}		  * Install a Cygwin environment (see http://www.cygwin.com). If your MATLAB is 32-bit, you need the "mingw64-i686-gcc" package. If your MATLAB is 64-bit, you need the "mingw64-x86_64-gcc" package.
 * The configuration file is called [[https://www.dynare.org/trac/browser/windows/mexopts-win32.bat|mexopts-win32.bat]] for MATLAB 32-bit, and [[https://www.dynare.org/trac/browser/windows/mexopts-win64.bat|mexopts-win64.bat]] for MATLAB 64-bit (these files are also distributed in recent packages of Dynare)
 * Rename the configuration file to {{{mexopts.bat}}}, and copy it to {{{c:\Documents and Settings\<User name>\Application Data\MathWorks\MATLAB\<release number>\}}}.
 * Note that if you installed Cygwin in a non-standard directory (i.e. elsewhere than {{{C:\CYGWIN}}}), you need to edit the {{{mexopts.bat}}} and change the {{{set PATH=...}}} line accordingly.
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 * Install Visual C++ 2008 Express Edition, downloadable at http://www.microsoft.com/Express/VC/  * Install Visual C++ 2008 Express Edition, downloadable at http://www.microsoft.com/express/Downloads/#Visual_Studio_2008_Express_Downloads

This page briefly documents how to configure MATLAB for Windows when a MEX compilation environment is required. Under Linux and MacOS, this configuration step is not necessary, because these operating systems already come with a working compilation environment (using gcc).

Two compilers are currently supported: GNU C compiler (gcc) from Cygwin, and Microsoft Visual C++ (MSVC).

With Dynare, you need a working MEX compilation environment in two cases:

  • you need to recompile Dynare MEX files, without using Dynare build system

  • you want to use the USE_DLL option of model, or the k_order_solver option of stoch_simul (with Dynare 4.1 only). In that case, you need to tell Dynare which compiler you are using:

    • if you are using Cygwin, type at the MATLAB prompt: 
      dynare modfilename cygwin
    • if you are using Microsoft Visual C++: 
      dynare modfilename msvc

Configuring MATLAB with GNU C compiler (gcc) from Cygwin

  • Install a Cygwin environment (see http://www.cygwin.com). If your MATLAB is 32-bit, you need the "mingw64-i686-gcc" package. If your MATLAB is 64-bit, you need the "mingw64-x86_64-gcc" package.

  • The configuration file is called mexopts-win32.bat for MATLAB 32-bit, and mexopts-win64.bat for MATLAB 64-bit (these files are also distributed in recent packages of Dynare)

  • Rename the configuration file to mexopts.bat, and copy it to c:\Documents and Settings\<User name>\Application Data\MathWorks\MATLAB\<release number>\.

  • Note that if you installed Cygwin in a non-standard directory (i.e. elsewhere than C:\CYGWIN), you need to edit the mexopts.bat and change the set PATH=... line accordingly.

Configuring MATLAB with Microsoft Visual C++ (MSVC)

The following should work with recent versions of MATLAB:

DynareWiki: ConfigureMatlabWindowsForMexCompilation (last edited 2016-10-15 12:21:08 by JohannesPfeifer)