gyrfalcON vs empty DYLD_LIBRARY_PATH

[jcldc]

I have modified Dehnen's Makefiles to allow to run Dehnen's binaries without necessary setting up DYLD_LIBRARY_PATH.

Now gyrfalcON and others binaries, linked against the falcON and WDutils libraries, can run with an empty DYLD_LIBRARY_PATH.

It should also fix issue #174

The modifications are in branch https://github.com/teuben/nemo/tree/darwin_dyld

I have successfully tested these modifications on both ARM and X86-64 Darwin OS, and using clang compiler.