fix omissions in a53586f4

Change-Id: I65e3fc3e34416b74365490a1cd7cba178ef7eb55

connectivity/Library_ado.mk

@@ -34,6 +34,8 @@ $(eval $(call gb_Library_set_include,ado,\
 	$$(INCLUDE) \
 ))
 
+$(eval $(call gb_Library_use_external,ado,boost_headers))
+
 $(eval $(call gb_Library_use_sdk_api,ado))
 
 ifeq ($(COM),GCC)

extensions/CppunitTest_extensions_test_update.mk

@@ -32,6 +32,8 @@ $(eval $(call gb_CppunitTest_add_exception_objects,extensions_test_update, \
 	extensions/qa/update/test_update \
 ))
 
+$(eval $(call gb_CppunitTest_use_external,extensions_test_update,boost_headers))
+
 $(eval $(call gb_CppunitTest_use_libraries,extensions_test_update, \
 	updchk \
 	cppu \

extensions/Library_updchk.mk

@@ -60,7 +60,7 @@ $(eval $(call gb_Library_add_exception_objects,updchk,\
 ))
 endif # OS WNT
 
-$(eval $(call gb_Library_use_external,updchk,\
+$(eval $(call gb_Library_use_externals,updchk,\
 	boost_headers \
     curl \
 ))