tqt3 twin-style-crystal compile error

Building from tqt3 onwards all compiles for me (slackware 13.37) When compiling twin-style-crystal it stops at the error that qvariant.h was not found. Adding --with-extra-includes=/usr/include/tqt/Qt/ during configure finds the file but then stops with the error: In file included from configdialog.h:12:0, from crystalconfig.cc:43: /usr/include/tqt/Qt/qvariant.h:45:28: fatal error: QtCore/qatomic.h: No such file or directory compilation terminated. make[3]: *** [crystalconfig.lo] Error 1 make[3]: Leaving directory `/tmp/twin-style-crystal/client/config' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/tmp/twin-style-crystal/client' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/tmp/twin-style-crystal' make: *** [all] Error 2 This file (QtCore/qatomic.h) does not exists anywhere in the git tree or the local system. Jay