I have run into the same problem as TIM. Michaels's earlier response helped move forward a little. I have downloaded and unpacked the the sources of SUMO. They are still in my downloads folder. I am able to run the
./configure command. But when I try to build:
make -j`sysctl -n hw.ncpu` as prescribed in the same installation guide cited above (
http://sumo.dlr.de/wiki/Installing/MacOS_Build_w_Homebrew), terminal comes back with the following message:
make: *** No targets specified and no makefile found. Stop.