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-rw-r--r--tools/lib/bpf/Makefile4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index b393b5e82380..f947b61b2107 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -84,11 +84,13 @@ else
endif
# Append required CFLAGS
+override CFLAGS += -std=gnu89
override CFLAGS += $(EXTRA_WARNINGS) -Wno-switch-enum
override CFLAGS += -Werror -Wall
override CFLAGS += $(INCLUDES)
override CFLAGS += -fvisibility=hidden
override CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
+override CFLAGS += $(CLANG_CROSS_FLAGS)
# flags specific for shared library
SHLIB_FLAGS := -DSHARED -fPIC
@@ -161,7 +163,7 @@ $(BPF_HELPER_DEFS): $(srctree)/tools/include/uapi/linux/bpf.h
$(OUTPUT)libbpf.so: $(OUTPUT)libbpf.so.$(LIBBPF_VERSION)
$(OUTPUT)libbpf.so.$(LIBBPF_VERSION): $(BPF_IN_SHARED) $(VERSION_SCRIPT)
- $(QUIET_LINK)$(CC) $(LDFLAGS) \
+ $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) \
--shared -Wl,-soname,libbpf.so.$(LIBBPF_MAJOR_VERSION) \
-Wl,--version-script=$(VERSION_SCRIPT) $< -lelf -lz -o $@
@ln -sf $(@F) $(OUTPUT)libbpf.so