diff --git a/gtk2_ardour/arval b/gtk2_ardour/arval
index 6aa8f8b08e..349f528b73 100755
--- a/gtk2_ardour/arval
+++ b/gtk2_ardour/arval
@@ -13,4 +13,5 @@ exec valgrind --tool=memcheck \
 	$VALGRIND_OPTIONS \
         --track-origins=yes \
 	--suppressions=`dirname "$0"`/../tools/valgrind.supp \
+	--suppressions=`dirname "$0"`/../tools/objc.supp \
 	$TOP/$EXECUTABLE --novst "$@"
diff --git a/tools/objc.supp b/tools/objc.supp
new file mode 100644
index 0000000000..4b2fa6c6e4
--- /dev/null
+++ b/tools/objc.supp
@@ -0,0 +1,281 @@
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc_zone_malloc
+   fun:recursive_mutex_init
+   fun:lock_init
+   fun:_objc_init
+   fun:_os_object_init
+   fun:libdispatch_init
+   fun:libSystem_initializer
+   fun:_ZN16ImageLoaderMachO18doModInitFunctionsERKN11ImageLoader11LinkContextE
+   fun:_ZN16ImageLoaderMachO16doInitializationERKN11ImageLoader11LinkContextE
+   fun:_ZN11ImageLoader23recursiveInitializationERKNS_11LinkContextEjRNS_21InitializerTimingListERNS_15UninitedUpwardsE
+   fun:_ZN11ImageLoader23recursiveInitializationERKNS_11LinkContextEjRNS_21InitializerTimingListERNS_15UninitedUpwardsE
+   fun:_ZN11ImageLoader19processInitializersERKNS_11LinkContextEjRNS_21InitializerTimingListERNS_15UninitedUpwardsE
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_calloc
+   fun:NXHashInsert
+   fun:NXCreateHashTableFromZone
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+   fun:_os_object_init
+   fun:libdispatch_init
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_calloc
+   fun:NXHashInsert
+   fun:_ZL12realizeClassP10objc_class
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+   fun:_os_object_init
+   fun:libdispatch_init
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_calloc
+   fun:NXHashInsert
+   fun:_NXHashRehashToCapacity
+   fun:NXHashInsert
+   fun:_ZL12realizeClassP10objc_class
+   fun:_ZL12realizeClassP10objc_class
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_calloc
+   fun:NXHashInsert
+   fun:_NXHashRehashToCapacity
+   fun:NXHashInsert
+   fun:_ZL12realizeClassP10objc_class
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_calloc
+   fun:NXHashInsert
+   fun:_ZL12realizeClassP10objc_class
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+   fun:_os_object_init
+   fun:libdispatch_init
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_calloc
+   fun:NXHashInsert
+   fun:_ZL12realizeClassP10objc_class
+   fun:_ZL12realizeClassP10objc_class
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+   fun:_os_object_init
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_malloc
+   fun:NXCreateMapTableFromZone
+   fun:_ZL20unattachedCategoriesv
+   fun:_ZL12realizeClassP10objc_class
+   fun:_ZL12realizeClassP10objc_class
+   fun:_ZL12realizeClassP10objc_class
+   fun:_ZL12realizeClassP10objc_class
+   fun:_ZL12realizeClassP10objc_class
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_malloc
+   fun:_strdup_internal
+   fun:NXMapKeyCopyingInsert
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+   fun:_os_object_init
+   fun:libdispatch_init
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_malloc
+   fun:NXCreateMapTableFromZone
+   fun:_ZL15remappedClassesa
+   fun:_ZL10remapClassP10objc_class
+   fun:_Z9readClassP10objc_classbb
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_malloc
+   fun:NXCreateMapTableFromZone
+   fun:_ZL18futureNamedClassesv
+   fun:_Z9readClassP10objc_classbb
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+   fun:_os_object_init
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_malloc
+   fun:_ZL12_NXMapRehashP11_NXMapTable
+   fun:NXMapInsert
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+   fun:_os_object_init
+   fun:libdispatch_init
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_malloc
+   fun:NXCreateMapTableFromZone
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+   fun:_os_object_init
+   fun:libdispatch_init
+   fun:libSystem_initializer
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_malloc
+   fun:_ZL12_NXMapRehashP11_NXMapTable
+   fun:NXMapInsert
+   fun:_ZL18__sel_registerNamePKcii
+   fun:_ZL15fixupMethodListP13method_list_tbb
+   fun:_ZL17attachMethodListsP10objc_classPP13method_list_tibbb
+   fun:_ZL12realizeClassP10objc_class
+   fun:_ZL12realizeClassP10objc_class
+   fun:_ZL12realizeClassP10objc_class
+   fun:_ZL12realizeClassP10objc_class
+   fun:_ZL12realizeClassP10objc_class
+   fun:_read_images
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc_zone_calloc
+   fun:_read_images
+   fun:map_images_nolock
+   fun:map_images
+   fun:_ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE
+   fun:_ZN4dyld36registerImageStateBatchChangeHandlerE17dyld_image_statesPFPKcS0_jPK15dyld_image_infoE
+   fun:dyld_register_image_state_change_handler
+   fun:_objc_init
+   fun:_os_object_init
+   fun:libdispatch_init
+   fun:libSystem_initializer
+   fun:_ZN16ImageLoaderMachO18doModInitFunctionsERKN11ImageLoader11LinkContextE
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Cond
+   fun:_platform_memchr$VARIANT$Haswell
+   fun:__sfvwrite
+   fun:__vfprintf
+   fun:__v2printf
+   fun:__xvprintf
+   fun:vfprintf_l
+   fun:printf
+   fun:main
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Cond
+   fun:_platform_memchr$VARIANT$Haswell
+   fun:__sfvwrite
+   fun:__vfprintf
+   fun:__v2printf
+   fun:__xvprintf
+   fun:vfprintf_l
+   fun:printf
+   fun:print_letters
+   fun:print_arguments
+   fun:main
+}
\ No newline at end of file