FreeTDS Development Group

[Gal Rubinstein <galrub AT gmail.com>]

the dev-c++ created a FreeTDS.DLL file and the libFreeTDS.a.

so now the g++ line looks like this:

g++.exe ../common.o ../t0001.o  -o "t0001.exe" -L"C:/MinGW/lib"
-L"C:/Dev-Cpp/lib" -L"C:/Gal/tmp/freetds-0.82/win32/dev-cpp" -lkernel32
-luser32  -lwinspool -ladvapi32 -lshell32 -lole32 -loleaut32 -luuid
-lFreeTDS

but still, I get the same result trace,

Thanks a lot for the help

On Mon, Mar 9, 2009 at 5:14 PM, James K. Lowden <jklowden AT freetds.org>wrote:

> Gal Rubinstein wrote:
> > g++.exe ../common.o ../t0001.o  -o "t0001.exe" -L"C:/MinGW/lib"
> > -L"C:/Dev-Cpp/lib" -L"C:/Gal/tmp/freetds-0.82/win32/dev-cpp" -lkernel32
> > -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 -lshell32 -lole32
> > -loleaut32 -luuid  ../../../../win32/dev-cpp/libFreeTDS.a
> >
> > ../common.o:common.c:(.text+0xa4): undefined reference to `tds_basename'
> > ../common.o:common.c:(.text+0x5d7): undefined reference to
> > `dbgetuserdata' ../common.o:common.c:(.text+0x797): undefined reference
> > to `dbgetuserdata' ../common.o:common.c:(.text+0x867): undefined
> > reference to `dbdead' ../t0001.o:t0001.c:(.text+0x88): undefined
> > reference to `dbinit'
>
> OK, that's actually pretty good.  All you need to do is tell the linker
> about the db-lib dynamic library you want to use.
>
> You'll have to fill me in here.  What is the name of the db-lib file in
> this environment?  And what kind of a file is libFreeTDS.a?
>
> In a unixy environment, the static linker resolves a library's symbols
> from the .so.  That is, the static linker uses a copy of the .so that will
> be available at runtime to verify that the .so contains all the symbols
> needed be the executable.
>
> In Win32, those jobs are divided: an "import library" (.lib) describes the
> .dll to the static linker.  You "link" the .lib when building, and at
> runtime the, um, runtime linker loads the matching DLL.
>
> The basic question is:  How does one tell g++.exe about a DLL that the
> executable will use at runtime?  I don't know what g++.exe produces when
> you're done building what's in src/dblib, i.e., the name of the DLL and
> import library, if any.  I would guess it produces a .dll and no .lib, and
> that the .dll (not the .a) needs to be mentioned when linking the
> executable (e.g. t0001.exe).
>
> You use two arguments to tell the linker about any library, static or
> dynamic: -L for its location, and -l for its name.  If the DLL is
> C:/Gal/tmp/freetds-0.82/win32/dev-cpp/FreeTDS.DLL, then, if my guess is
> correct:
>
>         -L"C:/Gal/tmp/freetds-0.82/win32/dev-cpp" -lFreeTDS
>
> Answer the basic question, and you're nearly home.  The only other gotcha
> is you'll need some stuff from src/replacements, specifically
> tds_basename().  I don't know if the project you're using produces a
> dynamic or static library for replacements.  I hope it's static.  You'll
> need to add that to your linker command, too.
>
> BTW, you can drop some of the other libraries you're linking to, at least
> for simple things like t0001.exe.  For instance, I doubt gdi32 or comdlg32
> are needed.  Adding them is no harm, but reducing the linker command to
> its minimum helps clarify what's happening.
>
> HTH.
>
> --jkl
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