gnuradio: wrapProgram: set DYLD_FRAMEWORK_PATH

This prevents CoreFoundation-related crashes

pkgs/applications/misc/gnuradio/default.nix

···
     for file in $(find $out/bin $out/share/gnuradio/examples -type f -executable); do
         wrapProgram "$file" \
             --prefix PYTHONPATH : $PYTHONPATH:$(toPythonPath "$out") \
-            --set MATPLOTLIBRC "$out/share/gnuradio"
+            --set MATPLOTLIBRC "$out/share/gnuradio" \
+            ${stdenv.lib.optionalString stdenv.isDarwin "--set DYLD_FRAMEWORK_PATH /System/Library/Frameworks"}
     done
   '';