#179: support GHC's main-is extension
----------------------------+-----------------------------------------------
Reporter: duncan | Owner:
Type: enhancement | Status: new
Priority: low | Milestone: _|_
Component: Cabal library | Version: 1.2.2.0
Severity: normal | Keywords:
Difficulty: normal | Ghcversion: 6.4.2
Platform: Linux |
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Comment(by mcandre):
Can someone give a correct use of the -main-is flag?
{{{
$ cat scriptedmain.hs
#!/usr/bin/env runhaskell
module ScriptedMain where
meaningOfLife :: Int
meaningOfLife = 42
main :: IO ()
main = putStrLn $ "Main: The meaning of life is " ++ show meaningOfLife
$ ghc -o scriptedmain -main-is ScriptedMain.main scriptedmain.hs
compilation IS NOT required
Undefined symbols:
"_ZCMain_main_closure", referenced from:
_ZCMain_main_closure$non_lazy_ptr in libHSrtsmain.a(Main.o)
(maybe you meant: _ZCMain_main_closure$non_lazy_ptr)
"___stginit_ZCMain", referenced from:
___stginit_ZCMain$non_lazy_ptr in libHSrtsmain.a(Main.o)
(maybe you meant: ___stginit_ZCMain$non_lazy_ptr)
ld: symbol(s) not found
collect2: ld returned 1 exit status
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/179#comment:7>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects
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