[Haskell-cafe] cabal-install 1.16.0.2 on Mac

[Richard A. O'Keefe]

Machine:	an Intel Core 2 Duo desktop Mac.
OS:		Mac OS X 10.7.4
Xcode:		4.6.1 (including command line tools)
Haskell:	"Haskell Platform 2012.4.0.0 64bit.pkg"
		downloaded today (GHC 7.4.2)

cabal update advised me to install a new cabal-install.

m% cabal install cabal-install
Resolving dependencies...
Downloading Cabal-1.16.0.3...
[ 1 of 65] Compiling Distribution.Compat.Exception ( /var/folders/_n/5bc02hb51d361crtq41g_gc4000g8p/T/Cabal-1.16.0.3-85340/Cabal-1.16.0.3/Distribution/Compat/Exception.hs, /var/folders/_n/5bc02hb51d361crtq41g_gc4000g8p/T/Cabal-1.16.0.3-85340/Cabal-1.16.0.3/dist/setup/Distribution/Compat/Exception.o )
<<< snip >>>
[52 of 67] Compiling Distribution.Simple.Build.PathsModule ( Distribution/Simple/Build/PathsModule.hs, dist/build/Distribution/Simple/Build/PathsModule.o )

Distribution/Simple/Build/PathsModule.hs:210:19:
    Warning: Pattern match(es) are non-exhaustive
             In a case alternative:
                 Patterns not matched:
                     PPC
                     PPC64
                     Sparc
                     Arm
                     ...
[53 of 67] Compiling Distribution.Simple.GHC ( Distribution/Simple/GHC.hs, dist/build/Distribution/Simple/GHC.o )

<<< snip >>>
[65 of 65] Compiling Main             ( /var/folders/_n/5bc02hb51d361crtq41g_gc4000g8p/T/Cabal-1.16.0.3-85340/Cabal-1.16.0.3/Setup.hs, /var/folders/_n/5bc02hb51d361crtq41g_gc4000g8p/T/Cabal-1.16.0.3-85340/Cabal-1.16.0.3/dist/setup/Main.o )
Linking /var/folders/_n/5bc02hb51d361crtq41g_gc4000g8p/T/Cabal-1.16.0.3-85340/Cabal-1.16.0.3/dist/setup/setup ...
Configuring Cabal-1.16.0.3...
Building Cabal-1.16.0.3...
Preprocessing library Cabal-1.16.0.3...
[ 1 of 67] Compiling Paths_Cabal      ( dist/build/autogen/Paths_Cabal.hs, dist/build/Paths_Cabal.o )

<<< snip >>>

[56 of 65] Compiling Distribution.Client.SetupWrapper ( Distribution/Client/SetupWrapper.hs, dist/build/cabal/cabal-tmp/Distribution/Client/SetupWrapper.o )

Distribution/Client/SetupWrapper.hs:51:12:
    Warning: In the use of `ghcVerbosityOptions'
             (imported from Distribution.Simple.GHC):
             Deprecated: "Use the GhcOptions record instead"
[57 of 65] Compiling Distribution.Client.Upload ( Distribution/Client/Upload.hs, dist/build/cabal/cabal-tmp/Distribution/Client/Upload.o )

<<< snip >>>

[65 of 65] Compiling Main             ( Main.hs, dist/build/cabal/cabal-tmp/Main.o )
Linking dist/build/cabal/cabal ...
Installing executable(s) in /home/cshome/o/ok/.cabal/bin
/Developer/usr/bin/strip: object: /home/cshome/o/ok/.cabal/bin/cabal malformed object (unknown load command 15)
cabal: Error: some packages failed to install:
cabal-install-1.16.0.2 failed during the final install step. The exception
was:
ExitFailure 1

m% file ~/.cabal/bin/cabal
/home/cshome/o/ok/.cabal/bin/cabal: Mach-O 64-bit executable x86_64

The strip(1) page ends with this, which may be relevant:
LIMITATIONS
       Not every layout of a Mach-O file can be stripped by this program.  But
       all layouts produced by the Apple compiler system can be stripped.

m% otool -l ~/.cabal/bin/cabal
<<< snip >>>
Load command 14
         cmd LC_FUNCTION_STARTS
  cmdsize 16
     dataoff  12743064
    datasize 204136
Load command 15
      cmd ?(0x00000029) Unknown load command
  cmdsize 16
00c58f00 00000000 


So something is definitely putting something in there that 
the Xcode 4.6.1 tools do not like.