mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-19 12:57:53 +00:00
929fda76b8
The latest autocompletion calls 'make -qp' to get all the possible targets. This currently fails, as our makefile is calling itself again and again ad-libitum. Fix it by detecting that the recursion level is not 0, and bail out if so. It works so well that it has the side effect of showing only the 'public' target, and hide our internal ones! :-) Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
321 lines
10 KiB
Makefile
321 lines
10 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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# config options to push down to kconfig
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KCONFIG:= @@KCONFIG@@
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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 $(CT_MAKEFLAGS)),)
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# Somehow, the new auto-completion for make in the recent distributions
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# trigger a behavior where our Makefile calls itself recursively, in a
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# never-ending loop (except on lack of ressources, swap, PIDs...)
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# Avoid this situation by cutting the recursion short at the first
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# level.
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# This has the side effect of only showing the real targets, and hiding our
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# internal ones. :-)
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ifneq ($(MAKELEVEL),0)
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$(error Recursion detected, bailing out...)
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endif
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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 $^
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build-lib: paths.mk config/configure.in
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build-doc:
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build-man: docs/ct-ng.1.gz
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docs/ct-ng.1.gz: docs/ct-ng.1
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@echo " GZIP '$@'"
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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: FORCE
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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=$(patch)"; \
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) >paths.mk
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config/configure.in: FORCE
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@echo " GEN '$@'"
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@{ printf "# Generated file, do not edit\n"; \
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printf "# Default values as found by ./configure\n"; \
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for var in $(KCONFIG); do \
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printf "\n"; \
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printf "config CONFIGURE_$${var%%=*}\n"; \
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printf " bool\n"; \
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if [ "$${var#*=}" = "y" ]; then \
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printf " default y\n"; \
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fi; \
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done; \
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} >$@
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FORCE:
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#--------------------------------------
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# Clean rules
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clean-bin:
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@echo " RM 'ct-ng'"
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@rm -f ct-ng
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@echo " RM 'scripts/crosstool-NG.sh'"
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@rm -f scripts/crosstool-NG.sh
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@echo " RM 'scripts/saveSample.sh'"
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@rm -f scripts/saveSample.sh
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@echo " RM 'scripts/showTuple.sh'"
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@rm -f scripts/showTuple.sh
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clean-lib:
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@echo " RM 'paths.mk'"
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@rm -f paths.mk
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@echo " RM 'config/configure.in'"
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@rm -f config/configure.in
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clean-doc:
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clean-man:
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@echo " RM 'docs/ct-ng.1'"
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@rm -f docs/ct-ng.1
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@echo " RM 'docs/ct-ng.1.gz'"
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@rm -f docs/ct-ng.1.gz
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#--------------------------------------
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# Check for --local setup
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ifeq ($(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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@for samp_file in samples/*/crosstool.config; do \
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mkdir -p "$(DESTDIR)$(LIBDIR)/$${samp_file%/*}"; \
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$(sed) -r -e 's:\$$\{CT_TOP_DIR\}:\$$\{CT_LIB_DIR\}:;' \
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-e 's:^(CT_WORK_DIR)=.*:\1="\$${CT_TOP_DIR}/.build":;' \
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$${samp_file} \
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>"$(DESTDIR)$(LIBDIR)/$${samp_file}"; \
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done
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@$(install) -m 644 samples/samples.mk "$(DESTDIR)$(LIBDIR)/samples/samples.mk"
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install-doc: $(DESTDIR)$(DOCDIR)
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@echo " INST 'docs/*.txt'"
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@for doc_file in docs/*.txt; do \
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$(install) -m 644 "$${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)$(MAN_SUBDIR)/ct-ng.1.gz'"
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@rm -f "$(DESTDIR)$(MANDIR)$(MAN_SUBDIR)/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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