hang in load-shared-object of freetype dylib

[Cyrus Harmon]

The following command hangs 1.0.39.2/x86-64-darwin/sb-thread:

(LOAD-SHARED-OBJECT "/usr/X11R6/lib/libfreetype.6.dylib")

and the backtrace is:

Interrupt from Emacs
   [Condition of type SIMPLE-ERROR]

Restarts:
 0: [CONTINUE] Continue from break.
 1: [RETRY] Retry SLIME REPL evaluation request.
 2: [ABORT] Return to SLIME's top level.
 3: [TERMINATE-THREAD] Terminate this thread (#<THREAD "repl-thread" RUNNING {1002D1C411}>)

Backtrace:
  0: ("bogus stack frame")
  1: ("foreign function: unmap_image")
  2: ("foreign function: #x7FFF5FC04A34")
  3: ("foreign function: #x7FFF5FC04BA5")
  4: ("foreign function: #x7FFF5FC09E9A")
  5: ("foreign function: dlclose")
  6: ("foreign function: _read_images")
  7: ("foreign function: map_images_nolock")
  8: ("foreign function: map_images")
  9: ("foreign function: #x7FFF5FC0395F")
 10: ("foreign function: #x7FFF5FC04469")
 11: ("foreign function: dyld_register_image_state_change_handler")
 12: ("foreign function: _objc_init")
 13: ("foreign function: #x7FFF5FC0D500")
 14: ("foreign function: #x7FFF5FC0BCEC")
 15: ("foreign function: #x7FFF5FC0BC9D")
 16: ("foreign function: #x7FFF5FC0BC9D")
 17: ("foreign function: #x7FFF5FC0BC9D")
 18: ("foreign function: #x7FFF5FC0BC9D")
 19: ("foreign function: #x7FFF5FC0BC9D")
 20: ("foreign function: #x7FFF5FC0BDA6")
 21: ("foreign function: #x7FFF5FC09229")
 22: ("foreign function: NSAddImage")
 23: ("foreign function: dlopen")
 24: (SB-ALIEN::DLOPEN "/usr/X11R6/lib/libfreetype.6.dylib" 258)
 25: (SB-SYS:DLOPEN-OR-LOSE #S(SB-ALIEN::SHARED-OBJECT :PATHNAME #P"/usr/X11R6/lib/libfreetype.6.dylib" :NAMESTRING "/usr/X11R6/lib/libfreetype.6.dylib" :HANDLE NIL :DONT-SAVE NIL))
 26: ((FLET SB-THREAD::WITH-MUTEX-THUNK))
 27: ((FLET #:WITHOUT-INTERRUPTS-BODY-[CALL-WITH-MUTEX]300))
 28: (SB-THREAD::CALL-WITH-MUTEX ..)
 29: (LOAD-SHARED-OBJECT "/usr/X11R6/lib/libfreetype.6.dylib")[:EXTERNAL]

uname -a says:

Darwin Beaune.local 10.3.0 Darwin Kernel Version 10.3.0: Fri Feb 26 11:58:09 PST 2010; root:xnu-1504.3.12~1/RELEASE_I386 i386

this is on a fresh 1.0.39.2 build.

*feautres*:

(:ASDF :SB-THREAD :ANSI-CL :COMMON-LISP :SBCL :SB-DOC :SB-TEST :SB-LDB
 :SB-PACKAGE-LOCKS :SB-UNICODE :SB-EVAL :SB-SOURCE-LOCATIONS
 :IEEE-FLOATING-POINT :X86-64 :INODE64 :UNIX :MACH-O :BSD :DARWIN
 :MACH-EXCEPTION-HANDLER :SB-LUTEX :UD2-BREAKPOINTS :GENCGC
 :STACK-GROWS-DOWNWARD-NOT-UPWARD :C-STACK-IS-CONTROL-STACK :LINKAGE-TABLE
 :COMPARE-AND-SWAP-VOPS :UNWIND-TO-FRAME-AND-CALL-VOP :RAW-INSTANCE-INIT-VOPS
 :STACK-ALLOCATABLE-CLOSURES :STACK-ALLOCATABLE-VECTORS
 :STACK-ALLOCATABLE-LISTS :STACK-ALLOCATABLE-FIXED-OBJECTS :ALIEN-CALLBACKS
 :CYCLE-COUNTER :COMPLEX-FLOAT-VOPS :FLOAT-EQL-VOPS :INLINE-CONSTANTS
 :OS-PROVIDES-DLOPEN :OS-PROVIDES-DLADDR :OS-PROVIDES-PUTWC
 :OS-PROVIDES-BLKSIZE-T :OS-PROVIDES-SUSECONDS-T)