Re: [GHC] #6132: Can't use both shebang line and #ifdef declarations in the same file.

20 Feb 2016

      #6132: Can't use both shebang line and #ifdef declarations in the same file.
-------------------------------------+-------------------------------------
        Reporter:  gfxmonk           |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.0.4
  (Parser)                           |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:  runghc/T6132
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by thomie):

 * testcase:   => runghc/T6132
 * status:  new => closed
 * resolution:   => fixed

Comment:

 This was fixed in commit 7b0695a887c13a431f898d89938e127faa3f4585
 (ghc-7.8.1):
 {{{
 Author: Austin Seipp 
 Date:   Mon Jun 17 06:12:08 2013 -0500

     Use assembler-with-cpp mode when running CPP.

     This is needed because Clang is very strict about C99 macro rules,
 which
     dictate that '#' in a body must have a token immediately following it
 for
     string-ification. In practice we break this all the time, because we
 do
     very weird stuff like:

         #define FOOBAR(xyz) \
         {-# SOME PRAGMA #-} \
         baz :: (xyz) \
         baz = ...

     where the leading '#' in in the macro body clearly breaks this rule.

     Signed-off-by: Austin Seipp 
 }}}

 Hurray Austin!

 I added a test.

--
Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/6132#comment:8
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