Dear Helmut and Markus I checked out the Helmut's suggestion, and in fact are there a MinGW-w64 that is a mix between 32-64b. I think it is a very promising solution for windows-based users, mainly because many of new computers that we buy for GIS end-users area, in general, with large memory (4Gb+) and 64bit.
But as Helmut advice, I can get in trouble if we mix 32 & 64b. Addictionally, I have no idea of how many users compile grass from source under MSYS/Windows using the easy-to-follow and valuable intructions found at http://trac.osgeo.org/grass/wiki/CompileOnWindows I think rare people will be able to bypass the difficulties of try compile grass under windows using other configurations/libs different from the instructions above. So, if someone feel confortable to try, and could prepare a *CompileOnWindowsW64 *it will be great. By the way, the new python-based grass7 will still have the same limitations under windows (not use LFS and only run as 32b)? bests niltinho 2010/1/19 Helmut Kudrnovsky <[email protected]> > hi, > > >Dear all, > > > >I have used grass under Vista, and compiled it using > >Msys/OSgeo4W version. If I am not wrong I will get only > >a 32bit grass, because Msys/gcc and some of libs downloadable > >from the links http://trac.osgeo.org/grass/wiki/CompileOnWindows > >deal with 32bit instead 64. > > > >Is there a way of I prepare and environment under Vista to > >compile it with 64b? May be someone could help > >to preparar a *CompileOnWindows64* :-) > > > >Any hint are welcome. > > there seems to be a working mingw64-environment: > > http://sourceforge.net/projects/mingw-w64/ > > "The mingw-w64 project is a complete runtime environment for gcc to support > binaries native to Windows 64-bit and 32-bit operating systems. " > > maybe mixing 32bit-dependecies from osgeo4w and 64bit GRASS isn't a very > good idea, > so maybe it would be necessary to build a new 64bit building environment > with mingw64 > and 64bit dependecies like gdal, proj, tcltk, etc. > > but it would be a nice idea ... :o) > > best regards > Helmut > > ___________________________________________________________ > Preisknaller: WEB.DE <http://web.de/> DSL Flatrate für nur 16,99 > Euro/mtl.! > http://produkte.web.de/go/02/ > >
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