Re: Do we need "DEFINES=-DWIN32 -DGSL_DLL" in the Makefile of the gsl package?

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julien.bect wrote:
> Le 05/09/2016 à 15:47, Michael Goffioul a écrit :
> > The necessity of GSL_DLL macro is to deal with DLL-exported variables (not 
> > functions) and MSVC compiler (and other compilers that use the same dynamic 
> > linking rules).
> > 
> > A DLL-exported function can be found by the linker using 2 symbols: NAME 
> > and _imp_NAME. A DLL-exported variable can only be found by the linker with 
> > _imp_VAR. When using MSVC, if the variable is not decorated with 
> > __declspec(dllimport), the linker will fail. When using GCC, the linker 
> > uses some magic bootstrap to make the variable be found by the linker with 
> > VAR symbol only.
> > 
> > Keeping the define's is harmless with GCC (as GCC can deal with MSVC 
> > conventions).
> 
> Hi Michael,
> 
> Thank you for the explanation.
> 
> Would someone using MSVC tools be able to run the configure script (which is 
> need to create config.h and to determine @MKOCTFILE@ and 
> @canonical_host_type@ in Makefile.in) ?
> 
> @++
> Julien
> 
In mxe-octave, one can see the descriptions for msvc build. Now it seems not to 
be  maintained. I feel that they are preserved for someone resuming the work. 
At that time. the description in the gsl package will be useful.

Tatsuro