Strange problem with apache 2.0.39/php 4.2.1/gd-lib

hello everybody, i'm trying to use php 4.2.1 with apache 2.0.39. i compiled php as dso, with gd support (libjpeg6b, libpng-1.2.3 , gdlib-1.8.4, freetype-2.1.2) compiling and installation of the above packages went fine, but when i start apache, i get the following message from the apache error log: 'PHP Warning: Unable to load dynamic library '/usr/local/lib/php/extensions/gd.so' - /usr/local/lib/php/extensions/gd.so: undefined symbol: gdImagePngCtx in Unknown on line 0' i tried several versions of gd-lib and libpng and recompiled php, but i always got the same error message. does anybody have an idea ? thanks in advance martin Martin Lucas - ICT Manager - TechConsult GmbH European IT-Marketing Research Am Platz der Deutschen Einheit Leipziger Str. 35-37 34125 Kassel FON: +49(0)561 - 8109 172 FAX: +49(0)561 - 8109 2972 mailto:martin.lucas@techconsult.de http://www.techconsult.de