When using make kselftest TARGETS=bpf, tools/bpf is built with MAKEFLAGS=rR, which causes $(CXX) to be undefined, which in turn causes the build to fail with CXX test_cpp /bin/sh: 2: g: not found Fix by adding a default $(CXX) value, like tools/build/feature/Makefile already does. Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx> --- tools/testing/selftests/bpf/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index b59cd1042f9d..03017be02fac 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -2,6 +2,7 @@ include ../../../../scripts/Kbuild.include include ../../../scripts/Makefile.arch +CXX ?= $(CROSS_COMPILE)g++ CURDIR := $(abspath .) TOOLSDIR := $(abspath ../../..) LIBDIR := $(TOOLSDIR)/lib -- 2.25.4
