A gcc-15-based bpf toolchain defaults to C23 and fails to compile various kernel headers due to their use of a custom 'bool' type. Explicitly using -std=gnu11 works with both clang and bpf-toolchain. Signed-off-by: Holger Hoffstätte <holger@xxxxxxxxxxxxxxxxxxxxxx> --- 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 9e9a5f006..ca6c1e04b 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -227,7 +227,7 @@ $(OUTPUT)%.bpf.o: skeleton/%.bpf.c $(OUTPUT)vmlinux.h $(LIBBPF_BOOTSTRAP) -I$(or $(OUTPUT),.) \ -I$(srctree)/tools/include/uapi/ \ -I$(LIBBPF_BOOTSTRAP_INCLUDE) \ - -g -O2 -Wall -fno-stack-protector \ + -g -O2 -Wall -fno-stack-protector -std=gnu11 \ --target=bpf -c $< -o $@ $(Q)$(LLVM_STRIP) -g $@ -- 2.49.0
