Edit :Succes!!! Qt succesfully compiled.
So im pretty sure my problem is not there. whenever i try to build qt. (using 4.8.5) it stops at the *.o files. g32 -lQtCore -lole32 -luuid -lws2_32 -ladvapi32 -lshell32 -luser32 -lkernel32
./build\bitcoingui.o: file not recognized: File format not recognized
collect2.exe: error: ld returned 1 exit status
Tried many different things. Including just plain copying the required o-file from a similar build. And then it accepts it. And goes to the next error :Ty Zvs for resonding. It didnt have anything to do with / \ directly but it got me looking in the right direction. And as stupid as it is, I made a mayor error! Apperantly I committed to github after building qt on linux..... so the build folder was already there but not the right context, probably why the mixup with the compiler with : forward / backward \
obj/Palm_of_Hand \
set PATH=%PATH%;My:\ Face%
Sources += Smash.cpp
System.out.println " Doh!"

So is my build corrupted somehow? Yes it kinda was. (Linux build on windows) After that i ran into a minor hiccup. #include not found. This was a Qt-version issue. Switching to other version it went along without any errors.
So with much help from here ive managed to compile : Btc 0.9.1Daemon& Qt, Btc /Btc 0.8.6 Daemon& Qt / Namecoin 0.3.4 Daemon& QT (using the "easywinbuilder") / Asiacoin Daemon &Qt / And copyclone 0.6.3/ for me trickiest of all. So, thanks all for all your help, big one for Nitro. Im taking a little break from winbuilding with a newfound humbleness... =)