Build fix: missing initializer for member 'rotation_positions'

[lttng-tools.git] / src / bin / lttng-sessiond / ust-app.hpp

diff --git a/src/bin/lttng-sessiond/ust-app.hpp b/src/bin/lttng-sessiond/ust-app.hpp
index 34376a63df9ded3af5ca1ef0bd26b20a319cb639..c48e2b9e25b97f95e745b4cbd47d667583c0eb26 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.hpp
+++ b/src/bin/lttng-sessiond/ust-app.hpp
@@ -326,19 +326,24 @@ struct ust_app {
        struct lttng_ht *token_to_event_notifier_rule_ht;
 };
 
+/*
+ * Due to a bug in g++ < 7.1, this specialization must be enclosed in the fmt namespace,
+ * see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56480.
+ */
+namespace fmt {
 template <>
-struct fmt::formatter<ust_app> : fmt::formatter<std::string> {
+struct formatter<ust_app> : formatter<std::string> {
        template <typename FormatCtx>
        typename FormatCtx::iterator format(const ust_app& app, FormatCtx& ctx)
        {
-               return fmt::format_to(ctx.out(),
+               return format_to(ctx.out(),
                                "{{ procname = `{}`, ppid = {}, pid = {}, uid = {}, gid = {}, version = {}.{}, registration time = {} }}",
                                app.name, app.ppid, app.pid, app.uid, app.gid, app.v_major,
                                app.v_minor,
                                lttng::utils::time_to_iso8601_str(app.registration_time));
        }
 };
-
+} /* namespace fmt */
 
 #ifdef HAVE_LIBLTTNG_UST_CTL