[GHC] #8748: ghc-7.8-rc1/HEAD: --enable-unregisterised fails to build and run with threaded RTS, profiling mode

[GHC]

#8748: ghc-7.8-rc1/HEAD: --enable-unregisterised fails to build and run with
threaded RTS, profiling mode
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        Reporter:  slyfox            |            Owner:
            Type:  bug               |           Status:  patch
        Priority:  high              |        Milestone:  7.8.1
       Component:  Compiler          |          Version:  7.8.1-rc1
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  8301
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Comment (by Austin Seipp <austin@…>):

 In [changeset:"858a807d5522145e8ede9148a15bb65a0d851c00/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="858a807d5522145e8ede9148a15bb65a0d851c00"
 includes/Stg.h: add declarations for hs_popcnt and frinds

 This fixes most of implicit function declarations emitted
 C codegen in UNREG mode. Found by adding the following to
 mk/build.mk:

     SRC_CC_OPTS += -Werror=implicit-function-declaration
     SRC_HC_OPTS += -optc-Werror=implicit-function-declaration

 Issue #8748

 Signed-off-by: Sergei Trofimovich <slyfox at gentoo.org>
 Signed-off-by: Austin Seipp <austin at well-typed.com>
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8748#comment:15>
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