# BSD LICENSE
-#
+#
# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
# All rights reserved.
-#
+#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
-#
+#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# * Neither the name of Intel Corporation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
-#
+#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
$(error "need a make config first")
endif
-# use a "for" in a shell to process dependencies: we don't want this
-# task to be run in parallel.
+DEPDIR_FILES = $(addsuffix /.depdirs, $(addprefix $(BUILDDIR)/,$(ROOTDIRS-y) $(ROOTDIRS-)))
+
.PHONY: depdirs
depdirs: $(RTE_OUTPUT)/.depdirs
-$(RTE_OUTPUT)/.depdirs: $(RTE_OUTPUT)/.config
- @rm -f $(RTE_OUTPUT)/.depdirs ; \
- for d in $(ROOTDIRS-y); do \
- if [ -f $(RTE_SRCDIR)/$$d/Makefile ]; then \
- [ -d $(BUILDDIR)/$$d ] || mkdir -p $(BUILDDIR)/$$d ; \
- $(MAKE) S=$$d -f $(RTE_SRCDIR)/$$d/Makefile depdirs \
- >> $(RTE_OUTPUT)/.depdirs ; \
- fi ; \
- done
+$(RTE_OUTPUT)/.depdirs: $(DEPDIR_FILES)
+ @rm -f $@
+ @sort -u -o $@ $(DEPDIR_FILES)
+
+$(DEPDIR_FILES): $(RTE_OUTPUT)/.config
+ @dir=$(notdir $(@D)); \
+ [ -d $(BUILDDIR)/$$dir ] || mkdir -p $(BUILDDIR)/$$dir; \
+ $(MAKE) S=$$dir -f $(RTE_SRCDIR)/$$dir/Makefile depdirs > $@
.PHONY: depgraph
depgraph: