+where you installed Qt for /path/to/Qt4 (as above).
+
+Dependent on the Qt-libraries you have and the build system you're using
+you have to tell configure the compiler and compiler options to use.
+If your Qt-libraries don't match your compiler defaults you may
+adjust some environment variables to do so.
+
+1. Environment
+
+(a) Qt-4.6 libraries from Nokia or self compiled universal libs
+
+ Since MacOSX 10.6 the default is to compile 64bit applications.
+ We have to change that with if on that build system.
+
+ export CPPFLAGS="-arch i386"
+ export LDFLAGS="-arch i386"
+
+(b) Qt-4.6 libraries 64bit
+
+ You're at least on MacOSX 10.6 and don't have to change anything.
+ Note: Your LyX binary will run only on 10.6 64bit Intel machines.
+ Additionally you'll have to provide your Qt libraries somehow...
+ FIXME: actually this is a dream, 64bit LyX crashes on startup!
+
+(c) Qt-4.6 libraries self compiled with Tiger support
+
+ You have to choose the gcc4.0 compiler suite and the correct SDK: