embox

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#
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# Embox root Makefile.
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#
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# This file have just to setup proper make flags and to invoke mk/main.mk
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# which will perform the real work.
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#
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# Author: Eldar Abusalimov
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#
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# Check Make version (we need at least GNU Make 3.81). Fortunately,
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# '.FEATURES' built-in variable has been introduced exactly in GNU Make 3.81.
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ifneq ($(origin .FEATURES),default)
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$(error Unsupported Make version. \
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	Mybuild does not work properly with GNU Make $(MAKE_VERSION), \
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	please use GNU Make 3.81 or above.)
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endif
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# Disable everything, turn on undefined variables check.
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MAKEFLAGS += --no-builtin-rules
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MAKEFLAGS += --no-builtin-variables
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MAKEFLAGS += --no-print-directory
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MAKEFLAGS += --warn-undefined-variables
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# Fixup for case when prompt contains dollar signs.
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# Avoids bogus 'undefined variable' warnings.
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export PS1 :=
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.DEFAULT_GOAL := all
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# Force multiple targets listed in the command line to run independently,
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# even if -j option is enabled. This allows 'make -j clean all' to run
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# properly, at the same time executing each target in parallel.
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.NOTPARALLEL :
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.PHONY : $(sort all $(MAKECMDGOALS))
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$(sort all $(MAKECMDGOALS)) :
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# To account for upper limit on stack size in Mac OS X
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ifneq ($(shell uname -s), Darwin) 
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	@ulimit -s 65536 && $(MAKE) -C $(dir $(lastword $(MAKEFILE_LIST))) -f mk/main.mk $@
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else
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	@ulimit -s $(shell ulimit -Hs) && $(MAKE) -C $(dir $(lastword $(MAKEFILE_LIST))) -f mk/main.mk $@
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endif
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