[v1,1/3] tools build: Pass libbpf feature only if libbpf 1.0+

Message ID 20230109203424.1157561-2-irogers@google.com
State New
Headers
Series Assume libbpf 1.0 in build |

Commit Message

Ian Rogers Jan. 9, 2023, 8:34 p.m. UTC
  libbpf 1.0 represented a cleanup and stabilization of APIs. Simplify
development by only passing the feature test if libbpf 1.0 is
installed.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/build/feature/test-libbpf.c | 4 ++++
 1 file changed, 4 insertions(+)
  

Patch

diff --git a/tools/build/feature/test-libbpf.c b/tools/build/feature/test-libbpf.c
index a508756cf4cc..cd9989f52119 100644
--- a/tools/build/feature/test-libbpf.c
+++ b/tools/build/feature/test-libbpf.c
@@ -1,6 +1,10 @@ 
 // SPDX-License-Identifier: GPL-2.0
 #include <bpf/libbpf.h>
 
+#if !defined(LIBBPF_MAJOR_VERSION) || (LIBBPF_MAJOR_VERSION < 1)
+#error At least libbpf 1.0 is required for Linux tools.
+#endif
+
 int main(void)
 {
 	return bpf_object__open("test") ? 0 : -1;