When build kvm selftests in tools/testing/selftests directory with make O=/path/to/kselftests TARGETS=kvm it fails building some kvm test binaries due to lack of header files. Export INSTALL_HDR_PATH when "O" is specified, so that sub TARGET can get the right kernel headers with INSTALL_HDR_PATH. Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx> --- tools/testing/selftests/Makefile | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index be22dbe94a4c..f36bc6fd8086 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -110,6 +110,10 @@ ARCH ?= $(SUBARCH) export KSFT_KHDR_INSTALL_DONE := 1 export BUILD +ifneq (1,$(DEFAULT_INSTALL_HDR_PATH)) +export INSTALL_HDR_PATH := $(BUILD)/usr +endif + # build and run gpio when output directory is the src dir. # gpio has dependency on tools/gpio and builds tools/gpio # objects in the src directory in all cases making the src @@ -142,7 +146,7 @@ khdr: ifeq (1,$(DEFAULT_INSTALL_HDR_PATH)) $(MAKE) --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install else - $(MAKE) --no-builtin-rules INSTALL_HDR_PATH=$$BUILD/usr \ + $(MAKE) --no-builtin-rules INSTALL_HDR_PATH=$(INSTALL_HDR_PATH) \ ARCH=$(ARCH) -C $(top_srcdir) headers_install endif -- 2.20.1
