[GHC] #9549: deriveConstants fails on OpenBSD

[GHC]

#9549: deriveConstants fails on OpenBSD
-------------------------------------+-------------------------------------
       Reporter:  roland             |                   Owner:
           Type:  bug                |                  Status:  new
       Priority:  normal             |               Milestone:
      Component:  Build System       |                 Version:  7.9
       Keywords:                     |        Operating System:  OpenBSD
   Architecture:  Unknown/Multiple   |         Type of failure:  Building
     Difficulty:  Unknown            |  GHC failed
     Blocked By:                     |               Test Case:
Related Tickets:                     |                Blocking:
                                     |  Differential Revisions:
-------------------------------------+-------------------------------------
 On OpenBSD 5.5 compilation of current HEAD fails with:
 {{{
 inplace/bin/deriveConstants --gen-header -o includes/dist-
 derivedconstants/header/DerivedConstants.h --tmpdir includes/dist-
 derivedconstants/header/ --gcc-program "/usr/bin/gcc" --gcc-flag -fno-
 stack-protector --gcc-flag -Iincludes --gcc-flag -Iincludes/dist --gcc-
 flag -Iincludes/dist-derivedconstants/header --gcc-flag -Iincludes/dist-
 ghcconstants/header --gcc-flag -Irts --gcc-flag -fcommon --nm-program
 "/usr/bin/nm"
 nm: unknown option -- P
 usage: nm [-aCegnoprsuw] [file ...]
 deriveConstants: readProcess: /usr/bin/nm "-P" "includes/dist-
 derivedconstants/header/tmp.o" (exit 1): failed
 includes/ghc.mk:167: recipe for target 'includes/dist-
 derivedconstants/header/DerivedConstants.h' failed
 gmake[1]: *** [includes/dist-derivedconstants/header/DerivedConstants.h]
 Error 1
 Makefile:71: recipe for target 'all' failed
 gmake: *** [all] Error 2
 }}}

 This is due to OpenBSD's nm not supporting the -P option.

 Perhaps it can be fixed by using 'objdump --syms' instead of 'nm -P' (see
 attached OpenBSD-only patch).

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9549>
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