Fix disabling logging in release build

[skip ci]

src/dbus.cpp

@@ -384,6 +384,7 @@ bool dbus_manager::handle_game_registered(DBusMessage* _msg,
     auto pid = iter.get_primitive<int32_t>();
     iter.next();
     auto path = iter.get_primitive<std::string>();
+    (void)pid;
     SPDLOG_INFO("Game registered: {} '{}'", pid, path);
     return true;
 }
@@ -394,6 +395,7 @@ bool dbus_manager::handle_game_unregistered(DBusMessage* _msg,
     auto pid = iter.get_primitive<int32_t>();
     iter.next();
     auto path = iter.get_primitive<std::string>();
+    (void)pid;
     SPDLOG_INFO("Game unregistered: {} '{}'", pid, path);
     return true;
 }

src/gl/gl_hud.cpp

@@ -116,7 +116,7 @@ void imgui_create(void *ctx, const gl_wsi plat)
     }
 
     if (!gladLoadGL())
-        spdlog::error("Failed to initialize OpenGL context, crash incoming");
+        SPDLOG_DEBUG("Failed to initialize OpenGL context, crash incoming");
 
     GetOpenGLVersion(sw_stats.version_gl.major,
         sw_stats.version_gl.minor,

src/hud_elements.cpp

@@ -1275,7 +1275,7 @@ void HudElements::sort_elements(const std::pair<std::string, std::string>& optio
                 ordered_functions.push_back({graphs, value});
             else
             {
-                spdlog::error("Unrecognized graph type: {}", value);
+                SPDLOG_ERROR("Unrecognized graph type: {}", value);
             }
         }
     }

src/overlay.cpp

@@ -52,6 +52,9 @@ int fan_speed;
 fcatoverlay fcatstatus;
 std::string drm_dev;
 
+#if SPDLOG_ACTIVE_LEVEL < SPDLOG_LEVEL_OFF
+void init_spdlog() {}
+#else
 void init_spdlog()
 {
    if (spdlog::get("MANGOHUD"))
@@ -90,6 +93,7 @@ void init_spdlog()
    }
 
 }
+#endif
 
 void FpsLimiter(struct fps_limit& stats){
    stats.sleepTime = stats.targetFrameTime - (stats.frameStart - stats.frameEnd);

src/vulkan.cpp

@@ -781,6 +781,7 @@ static void submit_image_upload_cmd(struct swapchain_data *data, vk_image *img,
    img->uploaded = true;
    auto dur = Clock::now() - start;
    auto dur_us = std::chrono::duration_cast<std::chrono::microseconds>(dur).count();
+   (void)dur_us;
    SPDLOG_DEBUG("upload duration: {} us, {} bytes, {:0.02f} MiB/s", dur_us, upload_size, upload_size/(dur_us/1e6f)/(1024*1024));
 }