Hi,
someone is trying to compile one of my binding on Mac OS, and reported me some 
problems, the main one is this error with this command:

ocamlopt allegro.cmxa exhello.ml -o exhello

<snip>
/usr/bin/ld: Undefined symbols:
.objc_class_name_NSApplication
.objc_class_name_NSAutoreleasePool
.objc_class_name_NSBundle
.objc_class_name_NSConstantString
.objc_class_name_NSFileManager
.objc_class_name_NSMenu
.objc_class_name_NSMenuItem
.objc_class_name_NSObject
.objc_class_name_NSProcessInfo
.objc_class_name_NSThread
_CFDictionaryGetValue
_CFNumberGetValue
_CGDisplayCurrentMode
_CGDisplaySetPalette
_CGMainDisplayID
_FSGetCatalogInfo
_GetProcessBundleLocation
_NSApp
__NSConstantStringClassReference
___CFStringMakeConstantString
__mangled_main_address
_objc_msgSend
_caml_atom_table
_caml_static_data_end
_caml_static_data_start
_caml_code_area_end
_caml_code_area_start
collect2: ld returned 1 exit status
Error during linking
</snip>


here is the Makefile of the binding:
http://www.linux-nantes.fr.eu.org/~fmonnier/OCaml/Allegro/Makefile

Does someone have an idea about this problem ?

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