gistfile1.nim

when not defined(backend): 
  import uri
  echo "uri imported"
else: 
  import getDefinition("backend")
  echo "other backend imported"

echo("end")

BernardOhlsson% nimrod c -d:backend=irc -r test.nim
/etc/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/jester-0.1.0' [Path]
/etc/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/' [Path]
Hint: used config file '/etc/nimrod.cfg' [Conf]
Hint: system [Processing]
Hint: test [Processing]
Hint: uri [Processing]
Hint: strutils [Processing]
Hint: parseutils [Processing]
gcc   -o /home/isak/src/nim/deftest/test  /home/isak/src/nim/deftest/nimcache/pure_parseutils.o /home/isak/src/nim/deftest/nimcache/pure_strutils.o /home/isak/src/nim/deftest/nimcache/pure_uri.o /home/isak/src/nim/deftest/nimcache/nimrod_system.o /home/isak/src/nim/deftest/nimcache/deftest_test.o  -ldl
Hint: operation successful (9627 lines compiled; 0.252 sec total; 15.153MB) [SuccessX]
/home/isak/src/nim/deftest/test 
uri imported
end