Question

I would like to know if there are any open source components available for Delphi XE-2 that can connect to postgreSQL other than using outdated techniques like ODBC.

For now just Win32 support is needed, but if Win64 and OS-X support is also available that would be a bonus.

I googled around a bit, but the only lib that’s available (ZEOS) looks like it is no longer in active development.
There does seem to be a patch for Delphi XE2 but I could not get it to compile.

Answer 1

Turns out you can get ZEOS to work on Delphi XE2 and as far as I’ve tested all DB functionality works.

Here are the steps to follow:

1. Use SVN* to download the Delphi XE2 archive for ZEOS at:
   https://zeoslib.svn.sourceforge.net/svnroot/zeoslib/branches/testing
2. Put the zeos folder in the appropriate place, I’m assuming c:\borland
3. Do not open Delphi yet, but instead open
   C:\borland\zeos\packages\delphi16\ZComponent.dpk in wordpad and remove the trailing {$IFDEF} (remember to keep the ; in place).
4. Open c:\borland\zeos\packages\delphi16\ZeosDbo.groupproj.
5. Choose build all
6. Open c:\borland\zeos\packages\delphi16\build in explorer, copy all .bpl files and copy those to c:\borland\delphixe2\bin

7. Component -> install packages -> [add...] and choose
   c:\borland\delphixe2\bin\ZComponentDesign.bpl

   as a SVN client I’ve downloaded SVN-tortoise from: http://tortoisesvn.net/downloads.html
   Combined with both the SVN plug-ins for Firefox