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-rw-r--r--tools/build/Makefile.build3
-rw-r--r--tools/perf/config/Makefile4
2 files changed, 7 insertions, 0 deletions
diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
index ae203f2..35174d9 100644
--- a/tools/build/Makefile.build
+++ b/tools/build/Makefile.build
@@ -22,6 +22,9 @@ build-dir := $(srctree)/tools/build
# Generic definitions
include $(build-dir)/Build.include
+# do not force detected configuration
+-include .config-detected
+
# Init all relevant variables used in build files so
# 1) they have correct type
# 2) they do not inherit any value from the environment
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index cc22408..ba41421 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -11,6 +11,10 @@ ifneq ($(obj-perf),)
obj-perf := $(abspath $(obj-perf))/
endif
+$(shell echo -n > .config-detected)
+detected = $(shell echo "$(1)=y" >> .config-detected)
+detected_var = $(shell echo "$(1)=$($(1))" >> .config-detected)
+
LIB_INCLUDE := $(srctree)/tools/lib/
CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)