[GHC] #8139: ghc 7.6.3 and ghc HEAD fails to build on OS X 10.9

[GHC]

#8139: ghc 7.6.3 and ghc HEAD fails to build on OS X 10.9
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        Reporter:  darinmorrison     |            Owner:  darinmorrison
            Type:  bug               |           Status:  patch
        Priority:  highest           |        Milestone:  7.8.1
       Component:  Compiler          |          Version:  7.7
      Resolution:                    |         Keywords:
Operating System:  MacOS X           |     Architecture:  x86_64 (amd64)
 Type of failure:  Building GHC      |       Difficulty:  Easy (less than 1
  failed                             |  hour)
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by Austin Seipp <austin@?>):

 In [changeset:"feb76385b6eb88ceb8c3bd0a21d9723a607e2944/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="feb76385b6eb88ceb8c3bd0a21d9723a607e2944"
 Fix mkdirhier.sh on OS X 10.9 (#8139)

 Mac OS X 10.9 mkdir is apparently stricter than the Mac OS X 10.8
 mkdir about which paths are considered valid arguments. For example,
 in a typical build on Mac OS X 10.9, the first of the following
 invocations of mkdirhier.sh will succeed but the second will fail:

 "inplace/bin/mkdirhier"   utils/ghc-cabal/dist/build/tmp//.  # WORKS
 "inplace/bin/mkdirhier"   bootstrapping/.                    # FAILS

 Simply prefixing the path arguments with "./" causes both to succeed:

 "inplace/bin/mkdirhier" ./utils/ghc-cabal/dist/build/tmp//.  # WORKS
 "inplace/bin/mkdirhier" ./bootstrapping/.                    # WORKS

 Testing indicates failure on paths satisfying all of these criteria:

 - path is suffixed with "/."
 - path is only 1 level deep (e.g., "foo/."; _not_ "foo/bar/.")
 - path is _not_ prefixed with "./"

 This workaround prefixes "./" to the path argument passed to mkdir.

 Signed-off-by: Austin Seipp <austin at well-typed.com>
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8139#comment:19>
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