Problem with zlib.h while compiling

Hello list Thanks for zombiefying kde3, I really miss it. Since I didn't find a recommended compilation order, I began with dependencies/qt3 where I'm getting the following error: ....... -o .obj/release-shared/qpngio.o kernel/qpngio.cpp In file included from /usr/include/png.h:534:0, from kernel/qpngio.cpp:48: /usr/include/zlib.h:86:5: error: ‘z_const’ does not name a type /usr/include/zlib.h:94:5: error: ‘z_const’ does not name a type /usr/include/zlib.h:1025:29: error: ‘z_const’ has not been declared /usr/include/zlib.h:1025:29: error: two or more data types in declaration of ‘parameter’ /usr/include/zlib.h:1349:32: error: expected initializer before ‘Z_ARG’ /usr/include/zlib.h:1673:5: error: ‘z_off64_t’ does not name a type /usr/include/zlib.h:1748:15: error: ‘z_crc_t’ does not name a type /usr/include/zlib.h:1758:44: error: expected initializer before ‘Z_ARG’ make[2]: *** [.obj/release-shared/qpngio.o] Error 1 The most I could find about it was this bug than on one cares about: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=707537 I'm using Debian/testing and the precompiled packages for Stable and kubuntu didn't work because of dependencies and stuff (I only tried a few though). Any suggestions? Regards -- Do not let me induce you to satisfy my curiosity, from an expectation, that I shall gratify yours. What I may judge proper to conceal, does not concern myself alone.