no source code

Why you did you say that? we provided the github link in announce post and homepage.
Please
check it out.
I mean the 64bit GUI wallet source code
64bit and 32bit are using same source code
The diffrence is which clang compiler you specified in the command
like this
cmake -D BUILD_GUI=TRUE -D CMAKE_PREFIX_PATH=/Users/Darknetspace/Qt5.4.0/5.4/clang_64 -D CMAKE_BUILD_TYPE=Release ../..
here is the 64bit clang compiler sample.