[Minor] Fix `isnan` invocation

diff --git a/src/libserver/symcache/symcache_runtime.cxx b/src/libserver/symcache/symcache_runtime.cxx
index 0dfc23825ba2cf6a150c32120a046bb4d0b0923f..0805a10d6fd06b87ae580373d96fb13b8d820a28 100644 (file)
--- a/src/libserver/symcache/symcache_runtime.cxx
+++ b/src/libserver/symcache/symcache_runtime.cxx
@@ -550,7 +550,7 @@ symcache_runtime::check_metric_limit(struct rspamd_task *task) -> bool
                if (res) {
                        auto ms = rspamd_task_get_required_score(task, res);
 
-                       if (!::isnan(ms) && lim < ms) {
+                       if (!std::isnan(ms) && lim < ms) {
                                rs = res;
                                lim = ms;
                        }