The unix package adds -ldl to the linker, which breaks the linking
of static libraries.  So, we remove it.
This should be fixed in configure.ac too, but not necessary the way
we are building it.
--- ghc-6.10.2.orig/libraries/unix/configure	2009-03-31 06:26:28.000000000 +1300
+++ ghc-6.10.2/libraries/unix/configure	2009-10-13 10:20:19.000000000 +1300
@@ -6375,9 +6375,9 @@
 fi
 { echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
 echo "${ECHO_T}$ac_cv_lib_dl_dlopen" >&6; }
-if test $ac_cv_lib_dl_dlopen = yes; then
-  EXTRA_LIBS="$EXTRA_LIBS dl"
-fi
+#if test $ac_cv_lib_dl_dlopen = yes; then
+#  EXTRA_LIBS="$EXTRA_LIBS dl"
+#fi