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authorBenoît Ganne <bganne@cisco.com>2020-10-08 14:08:47 +0200
committerDave Wallace <dwallacelf@gmail.com>2020-11-04 18:40:31 +0000
commit24b5107edd21b191fac3d6f9f2ae58c6ede59a9e (patch)
treee0b0e8c0ba3200698ad9592d0e1b04f96af1435e /build/external
parent27d978c9136e903244113a7ab57acea4b496898e (diff)
build: better detection of libbpf dependencies
Type: fix Change-Id: Ib496e6eb0a76e6268aea09d5f4495f3ecd921ec2 Signed-off-by: Benoît Ganne <bganne@cisco.com>
Diffstat (limited to 'build/external')
-rw-r--r--build/external/packages/libbpf.mk10
1 files changed, 6 insertions, 4 deletions
diff --git a/build/external/packages/libbpf.mk b/build/external/packages/libbpf.mk
index 90ff54b433c..aa72832afe1 100644
--- a/build/external/packages/libbpf.mk
+++ b/build/external/packages/libbpf.mk
@@ -27,8 +27,10 @@ else
LIBBPF_CFLAGS+= -O2
endif
-IF_XDP:=$(shell echo "\#include <linux/if_xdp.h>" | $(CC) -E -xc - > /dev/null 2>&1)
-IF_XDP:=$(.SHELLSTATUS)
+# check for libelf, zlib and kernel if_xdp.h presence
+LIBBPF_DEPS_CHECK:="\#include <linux/if_xdp.h>\\n\#include <gelf.h>\\n\#include <zlib.h>\\nint main(void){return 0;}"
+LIBBPF_DEPS_CHECK:=$(shell echo -e $(LIBBPF_DEPS_CHECK) | $(CC) -xc -lelf -lz -o /dev/null - > /dev/null 2>&1)
+LIBBPF_DEPS_CHECK:=$(.SHELLSTATUS)
define libbpf_config_cmds
@true
@@ -46,8 +48,8 @@ define libbpf_install_cmds
$(call libbpf_build_cmds__,install,$(libbpf_install_log))
endef
-ifneq ($(IF_XDP),0)
- $(warning "linux/if_xdp.h was not found on this system. libbpf will be skipped.")
+ifneq ($(LIBBPF_DEPS_CHECK),0)
+ $(warning "Missing libbpf dependencies. libbpf will be skipped.")
libbpf-install:
@true
else