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https://github.com/crosstool-ng/crosstool-ng.git
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a211f4100d
The overview.txt file has evolved into more than just an overview. Split it into chapters, and include the misc tutorials. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
286 lines
8.5 KiB
Makefile
286 lines
8.5 KiB
Makefile
# Makefile.in for building crosstool-NG
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# This file serves as source for the ./configure operation
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# This series of test is here because GNU make 3.81 will *not* use MAKEFLAGS
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# to set additional flags in the current Makfile ( see:
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# http://savannah.gnu.org/bugs/?20501 ), although the make manual says it
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# should ( see: http://www.gnu.org/software/make/manual/make.html#Options_002fRecursion )
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# so we have to work it around by calling ourselves back if needed
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# So why do we need not to use the built rules and variables? Because we
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# need to generate scripts/crosstool-NG.sh from scripts/crosstool-NG.sh.in
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# and there is a built-in implicit rule '%.sh:' that has neither a pre-requisite
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# nor a command associated, and that built-in implicit rule takes precedence
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# over our non-built-in implicit rule '%: %.in', below.
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# CT_MAKEFLAGS will be used later, below...
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# Do not print directories as we descend into them
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ifeq ($(filter --no-print-directory,$(MAKEFLAGS)),)
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CT_MAKEFLAGS += --no-print-directory
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endif
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# Use neither builtin rules, nor builtin variables
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# Note: dual test, because if -R and -r are given on the command line
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# (who knows?), MAKEFLAGS contains 'Rr' instead of '-Rr', while adding
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# '-Rr' to MAKEFLAGS adds it literaly ( and does not add 'Rr' )
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ifeq ($(filter Rr,$(MAKEFLAGS)),)
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ifeq ($(filter -Rr,$(MAKEFLAGS)),)
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CT_MAKEFLAGS += -Rr
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endif # No -Rr
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endif # No Rr
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# Remove any suffix rules
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.SUFFIXES:
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all: Makefile build
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###############################################################################
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# Configuration variables
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VERSION:= @@VERSION@@
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BINDIR := @@BINDIR@@
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LIBDIR := @@LIBDIR@@
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DOCDIR := @@DOCDIR@@
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MANDIR := @@MANDIR@@
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DATE := @@DATE@@
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LOCAL := @@LOCAL@@
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# Paths found by ./configure
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install:= @@install@@
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bash := @@bash@@
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grep := @@grep@@
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make := @@make@@
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sed := @@sed@@
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libtool:= @@libtool@@
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objcopy:= @@objcopy@@
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objdump:= @@objdump@@
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readelf:= @@readelf@@
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patch := @@patch@@
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###############################################################################
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# Non-configure variables
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MAN_SECTION := 1
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MAN_SUBDIR := /man$(MAN_SECTION)
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###############################################################################
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# Sanity checks
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# Check if Makefile is up to date:
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Makefile: Makefile.in
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@echo "$< did changed: you must re-run './configure'"
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@false
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# If installing with DESTDIR, check it's an absolute path
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ifneq ($(strip $(DESTDIR)),)
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ifneq ($(DESTDIR),$(abspath /$(DESTDIR)))
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$(error DESTDIR is not an absolute PATH: '$(DESTDIR)')
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endif
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endif
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###############################################################################
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# Global make rules
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# If any extra MAKEFLAGS were added, re-run ourselves
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# See top of file for an explanation of why this is needed...
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ifneq ($(strip $(CT_MAKEFLAGS)),)
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MAKEFLAGS += $(CT_MAKEFLAGS)
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build install clean distclean uninstall:
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@$(MAKE) $@
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else
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# There were no additional MAKEFLAGS to add, do the job
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TARGETS := bin lib doc man
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build: $(patsubst %,build-%,$(TARGETS))
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install: build real-install
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clean: $(patsubst %,clean-%,$(TARGETS))
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distclean: clean
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@echo " RM 'Makefile'"
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@rm -f Makefile
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uninstall: real-uninstall
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###############################################################################
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# Specific make rules
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#--------------------------------------
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# Build rules
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build-bin: ct-ng scripts/crosstool-NG.sh scripts/saveSample.sh scripts/showTuple.sh
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@chmod 755 $^
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build-lib: paths.mk
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build-doc:
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build-man: docs/ct-ng.1.gz
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docs/ct-ng.1.gz: docs/ct-ng.1
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@echo " GZIP '$@'"
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@gzip -c9 $< >$@
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%: %.in Makefile
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@echo " SED '$@'"
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@$(sed) -r -e 's,@@CT_BINDIR@@,$(BINDIR),g;' \
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-e 's,@@CT_LIBDIR@@,$(LIBDIR),g;' \
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-e 's,@@CT_DOCDIR@@,$(DOCDIR),g;' \
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-e 's,@@CT_MANDIR@@,$(MANDIR),g;' \
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-e 's,@@CT_VERSION@@,$(VERSION),g;' \
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-e 's,@@CT_DATE@@,$(DATE),g;' \
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-e 's,@@CT_make@@,$(make),g;' \
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-e 's,@@CT_bash@@,$(bash),g;' \
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$@.in >$@
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# We create a script fragment that is parseable from inside a Makefile,
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# but also from inside a shell script, hence the reason why we don't
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# use := to set variables, although that will incur a (very small)
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# penalty from the Makefile that includes it (due to re-evaluation at
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# each call).
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paths.mk:
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@echo " GEN '$@'"
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@(echo "export install=$(install)"; \
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echo "export bash=$(bash)"; \
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echo "export grep=$(grep)"; \
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echo "export make=$(make)"; \
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echo "export sed=$(sed)"; \
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echo "export libtool=$(libtool)"; \
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echo "export objcopy=$(objcopy)"; \
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echo "export objdump=$(objdump)"; \
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echo "export readelf=$(readelf)"; \
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echo "export patch=$(patch)"; \
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) >paths.mk
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#--------------------------------------
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# Clean rules
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clean-bin:
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@echo " RM 'ct-ng'"
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@rm -f ct-ng
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@echo " RM 'scripts/crosstool-NG.sh'"
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@rm -f scripts/crosstool-NG.sh
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@echo " RM 'scripts/saveSample.sh'"
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@rm -f scripts/saveSample.sh
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@echo " RM 'scripts/showTuple.sh'"
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@rm -f scripts/showTuple.sh
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clean-lib:
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@echo " RM 'paths.mk'"
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@rm -f paths.mk
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clean-doc:
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clean-man:
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@echo " RM 'docs/ct-ng.1'"
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@rm -f docs/ct-ng.1
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@echo " RM 'docs/ct-ng.1.gz'"
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@rm -f docs/ct-ng.1.gz
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#--------------------------------------
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# Check for --local setup
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ifeq ($(strip $(LOCAL)),y)
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real-install:
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@true
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real-uninstall:
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@true
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else
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#--------------------------------------
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# Install rules
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real-install: $(patsubst %,install-%,$(TARGETS)) install-post
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install-bin: $(DESTDIR)$(BINDIR)
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@echo " INST 'ct-ng'"
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@$(install) -m 755 ct-ng "$(DESTDIR)$(BINDIR)/ct-ng"
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# If one is hacking crosstool-NG, the patch set might change between any two
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# installations of the same VERSION, thus the patches must be removed prior
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# to being installed. It is simpler to remove the whole lib/ directory, as it
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# is the goal of the install-lib rule to install the lib/ directory...
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install-lib: uninstall-lib $(DESTDIR)$(LIBDIR) install-lib-main install-lib-samples
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LIB_SUB_DIR := config contrib kconfig patches scripts
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$(patsubst %,install-lib-%-copy,$(LIB_SUB_DIR)): $(DESTDIR)$(LIBDIR)
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@echo " INSTDIR '$(patsubst install-lib-%-copy,%,$(@))/'"
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@tar cf - --exclude='*.sh.in' $(patsubst install-lib-%-copy,%,$(@)) \
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|(cd "$(DESTDIR)$(LIBDIR)"; tar xf -)
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# Huh? It seems we need at least one command to make this rule kick-in.
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install-lib-%: install-lib-%-copy; @true
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# Huh? that one does not inherit the -opy dependency, above...
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install-lib-scripts: install-lib-scripts-copy
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@chmod a+x $(DESTDIR)$(LIBDIR)/scripts/crosstool-NG.sh
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@chmod a+x $(DESTDIR)$(LIBDIR)/scripts/saveSample.sh
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@rm -f "$(DESTDIR)$(LIBDIR)/scripts/addToolVersion.sh"
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install-lib-main: $(DESTDIR)$(LIBDIR) $(patsubst %,install-lib-%,$(LIB_SUB_DIR))
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@echo " INST 'steps.mk'"
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@$(install) -m 644 steps.mk "$(DESTDIR)$(LIBDIR)/steps.mk"
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@echo " INST 'paths.mk'"
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@$(install) -m 644 paths.mk "$(DESTDIR)$(LIBDIR)/paths.mk"
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# Samples need a little love:
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# - change every occurrence of CT_TOP_DIR to CT_LIB_DIR
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install-lib-samples: $(DESTDIR)$(LIBDIR) install-lib-main
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@echo " INSTDIR 'samples/'"
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@tar cf - samples |(cd "$(DESTDIR)$(LIBDIR)"; tar xf -)
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@for samp_file in "$(DESTDIR)$(LIBDIR)/samples/"*"/crosstool.config"; do \
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$(sed) -r -i -e 's,\$$\{CT_TOP_DIR\},\$$\{CT_LIB_DIR\},g;' $${samp_file}; \
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$(sed) -r -i -e 's,^(CT_WORK_DIR)=.*,\1="\$${CT_TOP_DIR}/targets",;' $${samp_file}; \
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done
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install-doc: $(DESTDIR)$(DOCDIR)
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@echo " INST 'docs/*.txt'"
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@for doc_file in docs/*.txt; do \
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$(install) -m 644 "$${doc_file}" "$(DESTDIR)$(DOCDIR)"; \
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done
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install-man: $(DESTDIR)$(MANDIR)$(MAN_SUBDIR)
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@echo " INST 'ct-ng.1.gz'"
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@$(install) -m 644 docs/ct-ng.1.gz "$(DESTDIR)$(MANDIR)$(MAN_SUBDIR)"
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$(sort $(DESTDIR)$(BINDIR) $(DESTDIR)$(LIBDIR) $(DESTDIR)$(DOCDIR) $(DESTDIR)$(MANDIR)$(MAN_SUBDIR)):
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@echo " MKDIR '$@/'"
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@$(install) -m 755 -d "$@"
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install-post:
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@echo
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@echo "For auto-completion, do not forget to install 'ct-ng.comp' into"
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@echo "your bash completion directory (usually /etc/bash_completion.d)"
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#--------------------------------------
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# Uninstall rules
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real-uninstall: $(patsubst %,uninstall-%,$(TARGETS))
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uninstall-bin:
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@echo " RM '$(DESTDIR)$(BINDIR)/ct-ng'"
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@rm -f "$(DESTDIR)$(BINDIR)/ct-ng"
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uninstall-lib:
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@echo " RMDIR '$(DESTDIR)$(LIBDIR)/'"
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@rm -rf "$(DESTDIR)$(LIBDIR)"
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uninstall-doc:
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@echo " RMDIR '$(DESTDIR)$(DOCDIR)/'"
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@rm -rf "$(DESTDIR)$(DOCDIR)"
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uninstall-man:
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@echo " RM '$(DESTDIR)$(MANDIR)/ct-ng.1.gz'"
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@rm -f "$(DESTDIR)$(MANDIR)/ct-ng.1"{,.gz}
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endif # Not --local
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endif # No extra MAKEFLAGS were added
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