When clang finds a header file on the command line, it wants to precompile that, which would end up in a separate output file. Specifying -o on that same command line collides with that effort, so the compiler complains: clang: error: cannot specify -o when generating multiple output files Since we are not really after a precompiled header, just drop the header file from the command line, by removing it from the list of source files in the Makefile. Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx> --- tools/testing/selftests/arm64/mte/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/arm64/mte/Makefile b/tools/testing/selftests/arm64/mte/Makefile index e0d43cea3cd1..409e3e53d00a 100644 --- a/tools/testing/selftests/arm64/mte/Makefile +++ b/tools/testing/selftests/arm64/mte/Makefile @@ -32,5 +32,5 @@ endif include ../../lib.mk ifeq ($(mte_cc_support),1) -$(TEST_GEN_PROGS): mte_common_util.c mte_common_util.h mte_helper.S +$(TEST_GEN_PROGS): mte_common_util.c mte_helper.S endif -- 2.17.5
