From 72b0e467d7f53a80276800d4e0119707c5f58fea Mon Sep 17 00:00:00 2001
From: Infko <recollectionforgot@gmail.com>
Date: Wed, 5 Jun 2024 12:16:34 +0800
Subject: [PATCH] fix compile error in gcc 4.8.5. (#133)

---
 src/symbols/symbols_with_libdwarf.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/symbols/symbols_with_libdwarf.cpp b/src/symbols/symbols_with_libdwarf.cpp
index dec70ac..aa41488 100644
--- a/src/symbols/symbols_with_libdwarf.cpp
+++ b/src/symbols/symbols_with_libdwarf.cpp
@@ -44,13 +44,15 @@ namespace libdwarf {
                 // .emplace needed, for some reason .insert tries to copy <= gcc 7.2
                 return resolver_map.emplace(object_name, std::move(resolver_object)).first->second.get();
             } else {
-                return resolver_object;
+                // gcc cannot handle the following logic properly in <= gcc 5.1, so the type to be constructed is explicitly specified. 
+                // See also:https://godbolt.org/z/9oWdWjbf8
+                return maybe_owned<symbol_resolver>{std::move(resolver_object)};
             }
         }
     }
 
     // flatten trace with inlines
-    std::vector<stacktrace_frame> flatten_inlines(const std::vector<frame_with_inlines>& trace) {
+    std::vector<stacktrace_frame> flatten_inlines(std::vector<frame_with_inlines>& trace) {
         std::vector<stacktrace_frame> final_trace;
         for(const auto& entry : trace) {
             // most recent call first