Fixed version of Makefile.rules for forb-idl

Conflicts:

	forb-idl/Makefile.rules

diff --cc forb-idl/Makefile.rules
index 6f694719b5ab7d6798a2c6d9ac073e1cc539e48e,9c05604fbd2d248e0393145baf75c332903fb0b9..59ef8216564c653fc1227742851ac4fb49f5f4f5
--- 1/forb-idl/Makefile.rules
--- 2/forb-idl/Makefile.rules
+++ b/forb-idl/Makefile.rules
@@@ -261,7 -261,7 +261,7 @@@ endi
  define extra_rules_subdir_template
  extra-rules-subdirs: extra-rules-$(1)
  extra-rules-$(1):
--      +$(MAKE) OMK_SERIALIZE_INCLUDED=n MAKERULES_DIR=$(SOURCES_DIR)/$(1) OUTPUT_DIR=$(OUTPUT_DIR) \
++      +@$(MAKE) OMK_SERIALIZE_INCLUDED=n MAKERULES_DIR=$(SOURCES_DIR)/$(1) OUTPUT_DIR=$(OUTPUT_DIR) \
                SOURCES_DIR=$(SOURCES_DIR)/$(1) RELATIVE_DIR=$(RELATIVE_PREFIX)$(1) -C $(SOURCES_DIR)/$(1)
  endef