Set up some default buildbot URL paths per platform

config.def.h

@@ -642,6 +642,24 @@ static const bool input_descriptor_label_show = true;
 
 static const bool input_descriptor_hide_unbound = false;
 
+#if defined(ANDROID)
+#if defined(ANDROID_ARM)
+static char buildbot_server_url[] = "http://buildbot.libretro.com/nightly/android/latest/armeabi-v7a/";
+#elif defined(ANDROID_X86)
+static char buildbot_server_url[] = "http://buildbot.libretro.com/nightly/android/latest/x86/";
+#endif
+#elif defined(IOS)
+static char buildbot_server_url[] = "http://buildbot.libretro.com/nightly/ios/latest/";
+#elif defined(_WIN32) && !defined(_XBOX)
+#if defined(__x86_64__)
+static char buildbot_server_url[] = "http://http://buildbot.libretro.com/nightly/win-x86_64/latest/";
+#elif defined(__i386__) || defined(__i486__) || defined(__i686__)
+static char buildbot_server_url[] = "http://http://buildbot.libretro.com/nightly/win-x86/latest/";
+#endif
+#else
+static char buildbot_server_url[] = "";
+#endif
+
 #ifndef IS_SALAMANDER
 #include "intl/intl.h"
 

settings.c

@@ -567,7 +567,8 @@ static void config_set_defaults(void)
    g_settings.input.turbo_period = turbo_period;
    g_settings.input.turbo_duty_cycle = turbo_duty_cycle;
 
-   *g_settings.network.buildbot_url = '\0';
+   strlcpy(g_settings.network.buildbot_url, buildbot_server_url,
+         sizeof(g_settings.network.buildbot_url));
 
    g_settings.input.overlay_enable = true;
    g_settings.input.overlay_opacity = 0.7f;

settings_data.c

@@ -5449,7 +5449,7 @@ static bool setting_data_append_list_netplay_options(
          g_settings.network.buildbot_url,
          "core_management_buildbot_url",
          "Core Management Buildbot URL",
-         "",
+         buildbot_server_url, 
          group_info.name,
          subgroup_info.name,
          general_write_handler,