bail out on use of unknown install module

Change-Id: Ic6ba34e1ea6aff49f308f41e5692e08edc5b77c2
Reviewed-on: https://gerrit.libreoffice.org/30270Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: David Tardon <dtardon@redhat.com>

solenv/gbuild/InstallModule.mk

@@ -14,6 +14,7 @@ $(dir $(call gb_InstallModule_get_target,%))%/.dir :
 
 $(call gb_InstallModule_get_target,%) :
 	$(call gb_Output_announce,$*,$(true),IMO,3)
+	$(if $(INSTALL_MODULE_DEFINED),,$(call gb_Output_error,Something depends on install module $* which does not exist.))
 	touch $@
 
 $(call gb_InstallModule_get_clean_target,%) :
@@ -23,6 +24,7 @@ $(call gb_InstallModule_get_clean_target,%) :
 define gb_InstallModule_InstallModule
 $(call gb_InstallModuleTarget_InstallModuleTarget,$(1))
 
+$(call gb_InstallModule_get_target,$(1)) : INSTALL_MODULE_DEFINED := $(true)
 $(call gb_InstallModule_get_target,$(1)) : $(call gb_InstallModuleTarget_get_target,$(1))
 $(call gb_InstallModule_get_target,$(1)) :| $(dir $(call gb_InstallModule_get_target,$(1))).dir
 $(call gb_InstallModule_get_clean_target,$(1)) : $(call gb_InstallModuleTarget_get_clean_target,$(1))