[GHC] #7535: Using -with-rtsopts=-N should fail unless -threaded is also specified

[GHC]

#7535: Using -with-rtsopts=-N should fail unless -threaded is also specified
-------------------------------------+-------------------------------------
        Reporter:  mhoermann         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.6.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:  4243              |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by osa1):

 The problem is `-with-rtsopts` is really dumb, it just puts whatever you
 pass to it in a file which is linked with the program to provide the
 options to the RTS. It does not do any checks on the input. For example,
 `-with-rtsopts=-blah-blah` is also accepted.

 Ideally I guess the compiler would have access to RTS argument parsers for
 all RTS variants, and check with the parser of the correct RTS variant
 (e.g. when building prof+debug way it would use the prof+debug runtime's
 parser).

 It seems like too much work and it's not clear whether the added
 complexity (for having access to RTS parsers in the compiler) would worth
 it.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7535#comment:8>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler