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-rw-r--r--bpf_parser.y2
1 files changed, 1 insertions, 1 deletions
diff --git a/bpf_parser.y b/bpf_parser.y
index 003c031..7331cc5 100644
--- a/bpf_parser.y
+++ b/bpf_parser.y
@@ -745,7 +745,7 @@ int compile_filter(char *file, int verbose, int bypass, int format,
memset(tmp_file, 0, sizeof(tmp_file));
if (invoke_cpp) {
- ret = cpp_exec(file, tmp_file, sizeof(tmp_file));
+ ret = cpp_exec(file, tmp_file, sizeof(tmp_file), NULL);
if (ret) {
fprintf(stderr, "Failed to invoke C preprocessor!\n");
goto exit;