Makefile.perf uses "CONFIG_*" checks in the code. Example the config for libtraceevent is used to set PYTHON_EXT_SRCS
ifeq ($(CONFIG_LIBTRACEEVENT),y) PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources) else PYTHON_EXT_SRCS := $(shell grep -v '^\#\|util/trace-event.c' util/python-ext-sources) endif But this is not picking the value for CONFIG_LIBTRACEEVENT that is set using the settings in Makefile.config. Include the file ".config-detected" so that make will use the system detected configuration in the CONFIG checks. This will fix isues that could arise when other "CONFIG_*" checks are added to Makefile.perf in future as well. Signed-off-by: Athira Rajeev <atraj...@linux.vnet.ibm.com> --- Changelog: v2 -> v3: Added -include since in some cases make clean or make will fail when config is not included and if config-detected file is not present. v1 -> v2: Added $(OUTPUT) prefix to config-detected as pointed out by Ian tools/perf/Makefile.perf | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 37af6df7b978..f6fdc2d5a92f 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -351,6 +351,9 @@ export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT)python/perf*.so +# Use the detected configuration +-include $(OUTPUT).config-detected + ifeq ($(CONFIG_LIBTRACEEVENT),y) PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources) else -- 2.31.1