Hi Arjen,
>>
> Well, the cause of the problem is clear now: when linking the Fortran
> bindings
> into a DLL, gfortran would need the option -Wl,-out-implib,... (or
> something
> similar) to produce the missing library.
>
> This option _is_ present in the gcc part to create the DLL
> libplplotf77cd.dll.
I revisited this problem, since it still exists and wanted at least to
make it work.
>
> I checked to see if I could easily add it, but I have not found a
> specific CMake
> module for gfortran under Windows.
I tried to change the Windows-g77.cmake module but was not successful in
adding this -Wl,-out-implib - I think this is maybe not possible, since
there is no Fortran statement to export a symbol. I tried to add a .def
file, but also no success.
>
> So my question now is: Should I go ahead and add such module for this
> particular
> combination (as part of general modules) or add it to the
> CMakeLists.txt file as
> a special case. Or is there another way I should proceed?
>
> More details on the platform:
> - I am running CMake in an ordinary DOS-box under Windows XP.
> - I make sure that gcc and gfortran are in the path, so that CMake
> will pick up
> these compilers.
> - I use the "MinGW Makefiles" output option to generate the makefiles.
>
> (This differs from the situation where I run CMake via MSYS. MSYS and
> MinGW are explicitly distinguished in the CMake modules, but I am not
> sure how the above situation is characterised)
I added now a custom post-build target, which runs dlltool to create the
import library. Works great so far. Arjen, could you test that. Only
implemented for f77 so far, f95 would be straight forward. If we manage
to improve the cmake files we can remove it again.
Example 23 doesn't compile now. I get the following message:
[ 77%] Building Fortran object examples/f77/CMakeFiles/x23f.dir/x23f.f.obj
Z:\DevZone\PLdev\build\gcc\debug\examples\f77\x23f.f: In program `x23f':
Z:\DevZone\PLdev\build\gcc\debug\examples\f77\x23f.f:320: warning:
& trim(family(ifamily+1))//' '//trim(style(istyle+1))//' '//
^
Reference to unimplemented intrinsic `TRIM' at (^) (assumed EXTERNAL)
Z:\DevZone\PLdev\build\gcc\debug\examples\f77\x23f.f:320:
& trim(family(ifamily+1))//' '//trim(style(istyle+1))//' '//
^
Invalid declaration of or reference to symbol `trim' at (^) [initially
seen at (^)]
mingw32-make[2]: *** [examples/f77/CMakeFiles/x23f.dir/x23f.f.obj] Error 1
mingw32-make[1]: *** [examples/f77/CMakeFiles/x23f.dir/all] Error 2
mingw32-make: *** [all] Error 2
My Fortran knowledge is not very exhaustive. Any ideas?
Best Regards,
Werner
>
> Regards,
>
> Arjen
>
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--
Dr. Werner Smekal
Institut fuer Allgemeine Physik
Technische Universitaet Wien
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A-1040 Wien
Austria
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email: sme...@iap.tuwien.ac.at
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