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Makefile: add variable print capabilities

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Add a new goal that dumps all of our variables.

Taken from http://www.cmcrossroads.com/ask-mr-make/6521-dumping-every-makefile-variable

Signed-off-by: Emeric Vigier <emeric.vigier@savoirfairelinux.com>
[yann.morin.1998@free.fr: drop per-variable print; refresh patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Émeric Vigier 2013-05-29 00:41:11 +02:00 committed by Thomas Petazzoni
parent a3e7fc8e65
commit 98b616d761
1 changed files with 9 additions and 1 deletions
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10
Makefile
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@ -407,7 +407,7 @@ toolchain: prepare dirs dependencies $(BASE_TARGETS)
world: toolchain $(TARGETS_ALL)
.PHONY: all world toolchain dirs clean distclean source outputmakefile \
legal-info legal-info-prepare legal-info-clean \
legal-info legal-info-prepare legal-info-clean printvars \
$(BASE_TARGETS) $(TARGETS) $(TARGETS_ALL) \
$(TARGETS_CLEAN) $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) $(TARGETS_LEGAL_INFO) \
$(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
@ -731,6 +731,14 @@ ifeq ($(NEED_WRAPPER),y)
$(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
endif
# printvars prints all the variables currently defined in our Makefiles
printvars:
@$(foreach V, \
$(sort $(.VARIABLES)), \
$(if $(filter-out environment% default automatic, \
$(origin $V)), \
$(info $V=$($V) ($(value $V)))))
clean:
rm -rf $(STAGING_DIR) $(TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) \
$(STAMP_DIR) $(BUILD_DIR) $(BASE_DIR)/staging \