RE: libltdl for MinGW32 and native compilers

[Jon Leichter]

Stefan. I have had the same concerns as you. I have brought up a similar
topic in the past. Even with your patch, DLL_EXPORT is a flawed macro name.
I'd suggest the following patch:

#ifdef LIBLTDL_DLL_IMPORT
# define LT_SCOPE __declspec(dllimport) extern
#elif defined (LIBLTDL_DLL_EXPORT)
# define LT_SCOPE __declspec(dllexport) extern
#endif

Of course, IMHO, references to DLL_EXPORT in ltmain.sh should also be
removed.

Jon

> -----Original Message-----
> From: address@hidden [mailto:address@hidden Behalf Of
> stefan
> Sent: Tuesday, January 29, 2002 3:03 AM
> To: address@hidden
> Subject: libltdl for MinGW32 and native compilers
>
>
> Dear list,
>   The attached patch is meant to fix problems with the libltdl.dll
> under Windows.  It attaches LT_SCOPE to each exported/imported symbol.
> Furthermore it changes
>
> #ifdef DLL_EXPORT
> # define LT_SCOPE __declspec(dllexport)
> #endif
> #ifdef LIBLTDL_DLL_IMPORT
> # define LT_SCOPE extern __declspec(dllimport)
> #endif
>
> into
>
> #ifdef LIBLTDL_DLL_IMPORT
> # define LT_SCOPE __declspec(dllimport) extern
> #elif defined (DLL_EXPORT)
> #  define LT_SCOPE __declspec(dllexport) extern
> #endif
>
> This fixes the following problem:  With the above order you *cannot* use
> the libltdl.dll from another dll, because the dll would define DLL_EXPORT
> and LIBLTDL_DLL_IMPORT concurrently.
>
> Do you agree?  And will you apply the patch?
>
> Thanks in advance,
>       address@hidden
>