fix so_activex_idl, part one

extensions/CustomTarget_so_activex_idl.mk

@@ -41,10 +41,10 @@ $(EXAI)/so_activex.tlb : \
 	$(call gb_Helper_abbreviate_dirs_native, \
 	midl.exe \
 		-tlb $@ \
-		-h so_activex.h \
-		-iid so_activex_i.c \
-		-dlldata so_activex_dll.c \
-		-proxy so_activex_p.c \
+		-h $(EXAI)/so_activex.h \
+		-iid $(EXAI)/so_activex_i.c \
+		-dlldata $(EXAI)/so_activex_dll.c \
+		-proxy $(EXAI)/so_activex_p.c \
 		-Oicf \
 		$(INCLUDE) \
 		$<)

extensions/WinResTarget_activex.mk

@@ -44,8 +44,6 @@ $(eval $(call gb_WinResTarget_set_defs,activex_res,\
 	-DSO_ACTIVEX_TLB_DIR=$(subst /,\\,$(subst $(call gb_Helper_convert_native,$(SRCDIR)),../../..,$(call gb_Helper_convert_native,$(WORKDIR)/CustomTarget/extensions/source/activex/idl))) \
 ))
 
-# I suppose this dep is not really necessary, because it should always
-# be fulfilled anyway. But it cannot hurt to have it...
-$(call gb_WinResTarget_get_target,activex_res) : $(WORKDIR)/CustomTarget/extensions/source/activex/idl
+$(call gb_WinResTarget_get_target,activex_res) : $(WORKDIR)/CustomTarget/extensions/source/activex/idl/so_activex.tlb
 
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