Re: [Plplot-devel] Testing the "vanilla" MinGW-w64/MSYS2 platform

[Greg J. <gv...@gm...>]

Here is the "trully vanilla" results.  No additional library paths are
involved (not even /mingw32/lib).
To get the mingw32/lib in in a clean fashion I suggest the following lines
in the if(MINGW) ... endif():

# We need the path to the MinGW/Borland compiler in order to find
# the import libraries for system libraries.
if(MINGW)
  unset(MINGWPATH)
  get_filename_component(MINGWBINPATH ${CMAKE_C_COMPILER} PATH)
  message(STATUS " MINGWBINPATH = ${MINGWBINPATH}")
  find_path( MINGWPATH lib
   PATHS ${MINGWBINPATH}/../
   NO_DEFAULT_PATH)

  set(MINGWLIBPATH ${MINGWPATH}/lib
    CACHE FILEPATH
    DOCSTRING "Path to MinGW import libraries")

  list( APPEND CMAKE_LIBRARY_PATH ${MINGWPATH}/lib)
  list( APPEND CMAKE_INCLUDE_PATH
${CMAKE_INCLUDE_PATH};${MINGWPATH}/include)
  list(REMOVE_DUPLICATES CMAKE_LIBRARY_PATH)
  list(REMOVE_DUPLICATES CMAKE_INCLUDE_PATH)

endif(MINGW)



On Tue, Jul 14, 2015 at 3:03 PM, Alan W. Irwin <ir...@be...>
wrote:

> I just now finally found what appear to be definitive CMake
> instructions (see
> <http://www.openwalnut.org/projects/openwalnut/wiki/InstallMSYS2>) for
> the MinGW-w64/MSYS2 platform (only the "vanilla" version as defined by
> the <sf.net/projects/msys2> wiki rather than some "fixed" version)
> which I think will interest all those here who are planning to test
> that platform.  The essential points are you should be using the "Unix
> Makefiles" generator for the MSYS2 version of CMake for that platform.
>
> To expand the last point in more detail you should do the following two
> steps.
>
> 1. Install the MSYS2 version of CMake and other essential
> software, i.e.,
>
> pacman -S mingw-w64-x86_64-cmake mingw-w64-x86_64-extra-cmake-modules
> make pkg-config grep sed gzip tar openssh ...
>
> 2. "Important: to use packages that are pre-fixed with "mingw" in
> their name, you need to start a mingw shell. In your Start menu, you
> will find entries "MinGW-w64 Win64 Shell". ALWAYS start this shell in
> the future."
>
> I believe these two steps are important for CMake; the closely related
> Cygwin software demands you use a Cygwin version of CMake so it makes
> sense there is a similar requirement that the MSYS2 platform demands
> you use a MSYS2 version of CMake.
>
> Arjen's current test of MinGW-w64/MSYS2 uses the (incorrect) "MSYS
> Makefiles" generator for that platform and also may not be using the
> correct MSYS2 version of CMake.  So it will be interesting to see (the
> next time he has a chance to run the test which will probably be
> several weeks from now) how his results change once he moves to the
> recommended "Unix Makefiles" generator and the MSYS2 version of CMake.
>
> Meanwhile, because the popularity of the MinGW-w64/MSYS2 platform is
> already large and still rising rapidly, I strongly encourage others
> here with access to the vanilla version of that platform to try
> comprehensive testing of that platform using the generator and cmake
> version recommended by the OpenWalnut software project.
>
> Alan
> __________________________
> Alan W. Irwin
>
> Astronomical research affiliation with Department of Physics and Astronomy,
> University of Victoria (astrowww.phys.uvic.ca).
>
> Programming affiliations with the FreeEOS equation-of-state
> implementation for stellar interiors (freeeos.sf.net); the Time
> Ephemerides project (timeephem.sf.net); PLplot scientific plotting
> software package (plplot.sf.net); the libLASi project
> (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
> and the Linux Brochure Project (lbproject.sf.net).
> __________________________
>
> Linux-powered Science
> __________________________
>
>
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