Re: Cross compilation, warnings and errors

On Wed, 19 Jan 2011 20:35:50 -0300
Luis Lavena <[email protected]> wrote:

> In file included from ../../../src/apps/bsqldb.c:52:0:
> ../../../include/sqlfront.h:39:30: error: conflicting type qualifiers
> for ?LPCBYTE?
> /Users/luis/mingw/w32/bin/../lib/gcc/i686-w64-mingw32/4.5.2/../../../../i686-w64-mingw32/include/winscard.h:22:23:
> note: previous declaration of ?LPCBYTE? was here
> make[3]: *** [bsqldb.o] Error 1
... 
> Here, the issue could be associated an existing declaration of LPCBYTE
> that exists on mingw-w64 headers (but could be missing from MSVC or
> mingw.org headers)

If memory serves, LPCBYTE is defined in windows.h.  It's not used by FreeTDS, but is provided in the Microsoft-compatible header file, sqlfront.h for use by applications.  The versions of winscard.h I found on the 'net that define LPCBYTE looked very similar to what's in sqlfront.h, though, so it's hard to see exactly what gcc is complaining about.  

If I were you, I'd look into why the "TiniTDS" project includes winscard.h, which supports smartcards.  FreeTDS certainly doesn't need it.  If your aim is cross-compilation, minimizing your include file dependencies will make your job easier.   

Also, unless you absolutely require Microsoft compatibility, I recommend using the Sybase(-standard) sybfront.h and sybdb.h instead.  

> On a sidenote, I was unable to find a bug tracker to report this issue
> (direct link form the website) or source code checkout instructions
> either.

There is a link under "Developing" at www.freetds.org to the Sourceforge site.  Near the top of that page is a "Tracker" link.  I find issues easier to resolve here on the mailing list, though, where we can discuss the details.  

HTH.  Good luck with your project.  

--jkl