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[PATCH 3/5] tools build feature: Introduce feature_ass macro

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  [PATCH 3/5] tools build feature: Introduce feature_ass macro Jiri Olsa <jolsa@kernel.org> - 2015-12-23 19:00 +0100

#1297566 — [PATCH 3/5] tools build feature: Introduce feature_ass macro

The feature_ass macro generates feature value
assignment for name, like:

  $(call feature_ass,dwarf) == feature-dwarf=1

This will be used more in following patches.

Link: http://lkml.kernel.org/n/tip-jst8x3nv43w0h8afu9mfs07p@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/build/Makefile.feature | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 20753124c8f4..bd6eff14c8f9 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -122,8 +122,14 @@ define feature_print_text_code
     MSG = $(shell printf '...%30s: %s' $(1) $(2))
 endef
 
+#
+# generates feature value assignment for name, like:
+#   $(call feature_ass,dwarf) == feature-dwarf=1
+#
+feature_ass = feature-$(1)=$(feature-$(1))
+
 FEATURE_DUMP_FILENAME = $(OUTPUT)FEATURE-DUMP$(FEATURE_USER)
-FEATURE_DUMP := $(foreach feat,$(FEATURE_DISPLAY),feature-$(feat)($(feature-$(feat))))
+FEATURE_DUMP := $(foreach feat,$(FEATURE_DISPLAY),$(call feature_ass,$(feat)))
 FEATURE_DUMP_FILE := $(shell touch $(FEATURE_DUMP_FILENAME); cat $(FEATURE_DUMP_FILENAME))
 
 # The $(feature_display) controls the default detection message
-- 
2.4.3

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