FreeTDS Development Group

[Frediano Ziglio <freddy77 AT gmail.com>]

2010/9/16 LacaK <lacak AT zoznam.sk>

> Hi James,
> thanks for reply. Let me explain in details my point of view ;-)
>
>  Ask yourself this: how does one create a DLL from nothing?  Search the Web
>> for examples/tutorials with "Win32 dll C".   In short, open the
>> flavor-of-the-day IDE, choose something like "create a DLL project" and
>> pretty soon, splat, you'll have boilerplate DLL code.  Compile.  Good.
>>
> I am coming from Delphi/FreePascal world, where things are bit different.
> (I use dblib.dll in FreePascal db access class, which uses db-lib api to
> comunicate with MS SQL Server)
>
>
>  Add dblib.lib to your project, and a .DEF file naming the dblib functions
>> (easily extracted from doc/api_status.txt).  Compile again.  Voila!  A
>> DLL.
>>
> Yes, DEF file is one missing things. I attach my DEF file. Do you think,
> that this file (dblib_w.def) can be added into FreeTDS sources - Win32
> directory ?
> (where already FreeTDS_w.def is) I hope, that it will be useful also for
> others who needs build dblib.dll.
> Second missing things are linker dependencies, which must be set to compile
> (+ws2_32.lib)
> I also attach modified Visual Studio project files, which adds dblib_dll
> (dynamic library) beside existing  dblib (static library).
> May be, that it is not perfect solution, but it is attempt to make building
> more user friendly.
>
> If it is not acceptable for you, then we can write somewhere HOWTO text
> file (it will be very useful for new users):
> How to compile FreeTDS under MS Visual Studio:
> ...
> 1. Change in project properties
>
> General
>  Configuration type: Dynamic library (instead of Static library)
> Linker
>  Input
>     Add dependencies: ws2_32.lib
>     Module definition: ..\dblib.def
>
>  Supporting the Windows development environment is a bit of a nuisance --
>> no offence intended! -- for a free software project because the setup is
>> so variable.  I wrote the FreeTDS NMakefile specifically to compile db-lib
>> regardless of the version of Visual Studio anyone might happen to use.  I
>> don't know now portable it really is, or if anyone uses it, but at least
>> if problems are found it can be patched.  A .dsw or .sln  or .vcproj file
>> cannot be patched, and likely as not won't work anyway.  Just the other
>> day I tried to compile APL for Windows and VS complained the project file
>> was for a newer version.  No simple remedy there.
>>
> Do you have any prefered compiler for Windows ? If yes, then project files
> can be optimized for that compiler (resp. tutorial can be written)
> Really I am not C/C++ expert, so I only share my experiences with you.
> I leave it up to you. If you can make things to be easyier for non C/C++
> programers then it will be welcome!
>
> L.
>
>
Nothing against the patch, committed. I used dblib.def filename
(FreeTDS_w.def is the wide version of FreeTDS.def), renamed output directory
to dbdll_Debug/dbdll_Release (under VC++ 2008 I had problems compiling both
static and dynamic library) and changes to Makefiles.

freddy77