Possible regression in nightly builds - qt projects won't build.

re-posted from users@cnd due to lack of any response...

I’ve finished a C project that i’ve been working on for the last several weeks and came back to my C++/Qt project and find it won’t build. 

ld: can't map file, errno=22 file '.' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [dist/Debug/Qt5.6-MacOSX/HelloQtWorld] Error 1
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2

BUILD FAILED (exit value 2, total time: 7s)

The tool chain hasn’t change nor any project options so I tested with the sample Qt project and get the same error. The only changes have been updating to the nightly builds a couple times a week. 

I can build other Qt projects outside of netbeans without issue and this is only happening on OS X, linux & windows still build and run without error.

Standard C/C++  projects build and execute fine.

Can anyone test with a recent nightly build? Or help to figure out why the linker is failing.

Thanks, Robert