[gmx-developers] Windows64 builds and gsl linking

[Roland Schulz]

Hi Mirco,

I think you might be the first who compiled Gromacs with GSL on Windows.
Could you upload your fix to gerrit.gromacs.org?

Thanks
Roland

On Mon, Feb 20, 2012 at 5:20 PM, Mirco Wahab <
mirco.wahab at chemie.tu-freiberg.de> wrote:

> Hi folks,
>
> after I managed to build native VS2010/x64 versions of
> - libxml2/libiconv
> - fftw3
> - gsl/cblas
>
> into dlls, I tried to connect this w/Gromacs into a
> working executable.
>
> Thanks to the cmake build system adapted in 4.5.5,
> this was succesful in the end.
>
> The following problem was encountered during the build:
>
> - the few modules that actually use gsl
>  (geminate.c, gmx_hbond.c, gmx_kinetics.c)
>  define "HAVE_LIBGSL" before including the
>  corresponding headers. This is fine, but
>  for the windows build, there should be another
>  defined variable to indicate dll or static
>  gsl linkage *to the gsl headers*, like
>
>     #ifdef HAVE_LIBGSL
>       #define GSL_DLL     <-------- default (otherwise GSL_STATIC)
>       #include <gsl/gsl_multimin.h>
>       ...
>
>  This allows to redefine the function signature during
>  compilation, otherwise symbols won't be found by the
>  executables (g_analyze etc.) if accessed through another
>  library (gmxana).
>
> - after manually inserting a #define GSL_DLL line into the
>   three modules indicated above, all tools were linking fine.
>
> Besides, in gmx_kinetics.c resides a function
>
>      static char *itoa(int i)
>
> which uses the name of the more-or-less popular C library function
> itoa() (not ANSI, but supported by Visual Studio and invoked by
> stdlib.h).
>
> Thanks & Regards
>
> M.
>
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