set BIN_PATH      as "/usr/bin/"
set COMPILER      as "g++"
set COMPILER_PATH as "{BIN_PATH}{COMPILER}"

set SOURCE_FILE   as "example.cpp"
set OUTPUT        as "example"

for signal "start" [
  for exists "{BIN_PATH}clang++" [
    set COMPILER as "clang++"    
  ]
  
  for specific "linux" [
    println "OS: GNU/Linux"
  ]
  
  for specific "freebsd" [
    println "OS: FreeBSD"
  ]
  
  for specific "windows" [
    println "OS: Windows"
  ]
  
  for specific "openbsd" [
    println "OS: OpenBSD"
  ]
  
  for argument "build" [
    use exec "{COMPILER} {SOURCE_FILE} -o {OUTPUT}"
  
    for exists $OUTPUT [
      println "Build succeeded"
    ]
    
    use signal "exit"
  ]
   
  use signal "exit"
]