out-of-directory build places content in-directory

[danstowell]

Hi - when I build with cmake I usually use a separate build folder so as not to clutter the source folder. However, the BeamformIt cmake scripts somehow ignore that desire, and place the produced executable back into the source folder.

To reproduce:

• Get a fresh clone, and cd into it
• mkdir build
• cd build
• cmake ..
• make
• Expected: all build products are inside the build folder
• Actual: the BeamformIt executable is actually outside the build folder, in the source folder.

[xanguera]

Hi, I agree this would be useful. would you be able to modify the cmakeLists.txt file to add your feature and then commit the changes?