The minimum supported C standard version is C89, with use of GNU extensions, hence make sure to catch any instances that would break the build for this mode by passing -std=gnu89. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx> --- tools/bpf/bpftool/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index c0c30e56988f..71a7b7194c2c 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -65,7 +65,7 @@ $(LIBBPF_BOOTSTRAP)-clean: FORCE | $(LIBBPF_BOOTSTRAP_OUTPUT) prefix ?= /usr/local bash_compdir ?= /usr/share/bash-completion/completions -CFLAGS += -O2 +CFLAGS += -std=gnu89 -O2 CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers CFLAGS += $(filter-out -Wswitch-enum -Wnested-externs,$(EXTRA_WARNINGS)) CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \ -- 2.33.1
