Fix for problem with the CMake XCode generator ignoring the CMAKE_BUILD_TYPE value.
Fix for problem with the CMake XCode generator ignoring the CMAKE_BUILD_TYPE value.

mjendruk/libzeug,hpi-r2d2/libzeug,simonkrogmann/libzeug,kateyy/libzeug,j-o/libzeug,j-o/libzeug,p-otto/libzeug,lanice/libzeug,simonkrogmann/libzeug,j-o/libzeug,lanice/libzeug,kateyy/libzeug,hpi-r2d2/libzeug,cginternals/libzeug,cginternals/libzeug,p-otto/libzeug,cginternals/libzeug,cginternals/libzeug,mjendruk/libzeug,lanice/libzeug,lanice/libzeug,kateyy/libzeug,j-o/libzeug,mjendruk/libzeug,p-otto/libzeug