macOS system prerequisites 
To build LSST software, macOS systems need:
Xcode cmake  
Note
macOS versions 10.9 and earlier have not been tested recently and may not work.
 
Xcode 
You will need to install developer tools, which we recommend you obtain with Apple’s Xcode command line tools package.
To do this, run from the command line (e.g. Terminal.app 
You can verify where the tools are installed by running:
 
cmake 
cmake Homebrew :
Alternatively,  Anaconda  users can install cmake conda :
 
 
            
           
          
  
    
  
  LSST documentation is delivered by Fastly .
  
    Built with Sphinx  using a theme  provided by Read the Docs .
  
  Financial support for LSST comes from the National Science Foundation (NSF) through Cooperative Agreement No. 1258333, the Department of Energy (DOE) Office of Science under Contract No. DE-AC02-76SF00515, and private funding raised by the LSST Corporation . The NSF-funded LSST Project Office for construction was established as an operating center under management of the Association of Universities for Research in Astronomy (AURA ).  The DOE-funded effort to build the LSST camera is managed by the SLAC National Accelerator Laboratory (SLAC ).