Attached patch fixes (http://darcs.haskell.org/ghcBuilder/builders/tn23/479/11.html):

=====> T3807(normal) 591 of 3083 [0, 0, 1]
cd ./dynlibs && $MAKE --no-print-directory -s T3807 </dev/null >T3807.run.stdout 2>T3807.run.stderr
Wrong exit code (expected 0 , actual 2 )
Stdout:
Failed to open shared library: dlopen(./T3807test.so, 10): Symbol not found: ___gmp_set_memory_functions
Referenced from: /Users/thorkilnaur/tn/builders/GHCBuilder/tn23/builder/tempbuild/build/bindisttest/install dir/lib/ghc-7.3.20111106/integer-gmp-0.3.0.0/libHSinteger-gmp-0.3.0.0-ghc7.3.20111106.dylib
Expected in: dynamic lookup
Stderr:
make[3]: *** [T3807] Error 1
*** unexpected failure for T3807(normal)

Validates on

$ uname -a
Darwin thorkil-naurs-intel-mac-mini.local 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386
$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 6.12.3
$ 

and

$ uname -a
Linux tn24 2.6.32-34-generic #77-Ubuntu SMP Tue Sep 13 19:40:53 UTC 2011 i686 GNU/Linux
$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 6.12.3
$ 

Best regards Thorkil