X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ffilter%2Ffilter-ast.h;fp=src%2Fcommon%2Ffilter%2Ffilter-ast.h;h=d7a5674451db2ee8f9872f9134784710b43aba78;hp=93f9b9b25fd746673cc4689ff7ac7f5033779122;hb=48a4000561343808724f7cb5fa8c131877489ccd;hpb=81663f073dbfb4b61c06a0ceb8ca33c4fc41b1c5

diff --git a/src/common/filter/filter-ast.h b/src/common/filter/filter-ast.h
index 93f9b9b25..d7a567445 100644
--- a/src/common/filter/filter-ast.h
+++ b/src/common/filter/filter-ast.h
@@ -20,6 +20,10 @@
 #include <stdio.h>
 #include <stdint.h>
 
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
 #define printf_debug(fmt, args...)					\
 	do {								\
 		if (filter_parser_debug)				\
@@ -99,6 +103,8 @@ struct filter_node {
 	enum node_type type;
 	union {
 		struct {
+			/* Avoid -Wextern-c-compat warning with clang++. */
+			char unused;
 		} unknown;
 		struct {
 			struct filter_node *child;
@@ -186,4 +192,8 @@ int filter_visitor_ir_validate_string(struct filter_parser_ctx *ctx);
 int filter_visitor_ir_normalize_glob_patterns(struct filter_parser_ctx *ctx);
 int filter_visitor_ir_validate_globbing(struct filter_parser_ctx *ctx);
 
+#if defined(__cplusplus)
+}
+#endif
+
 #endif /* _FILTER_AST_H */