-configuring wxWidgets. If you use wx-config --libs to link your application,
-he necessary linker flags will be added. When compiling your own files,
-you need to add -arch ppc -arch i386 to your CFLAGS.
+configuring wxWidgets. This will create the libraries for all the supported
+architectures, currently ppc, i386 and x86_64 when using Cocoa (Carbon isn't
+available in 64 bit builds). You may explicitly specify the architectures to
+use as a comma-separated list, e.g. --enable-universal_binary=i386,x86_64.
+
+Notice that if you use wx-config --libs to link your application, the -arch
+flags are not added automatically as it is possible to link e.g. x86_64-only
+program to a "fat" library containing other architectures. If you want to
+build a universal application, you need to add the necessary "-arch xxx" flags
+to your project or makefile separately.