diff --git a/polymer/eduke32/build/src/sdlayer.c b/polymer/eduke32/build/src/sdlayer.c
index 83ed35ab2..16d060bbe 100644
--- a/polymer/eduke32/build/src/sdlayer.c
+++ b/polymer/eduke32/build/src/sdlayer.c
@@ -182,6 +182,9 @@ int32_t wm_msgbox(const char *name, const char *fmt, ...)
     }
 # endif
     return SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, name, buf, NULL);
+#elif defined GEKKO
+    puts(buf);
+    return 0;
 #endif
     puts(buf);
     puts("   (press Return or Enter to continue)");
diff --git a/polymer/eduke32/build/src/sdlayer12.c b/polymer/eduke32/build/src/sdlayer12.c
index dbba20baa..779e877af 100644
--- a/polymer/eduke32/build/src/sdlayer12.c
+++ b/polymer/eduke32/build/src/sdlayer12.c
@@ -22,6 +22,10 @@ int32_t wm_ynbox(const char *name, const char *fmt, ...)
         if (r >= 0)
             return r;
     }
+#elif defined GEKKO
+    puts(buf);
+    puts("Assuming yes...");
+    return 1;
 #endif
 
     // NOTE: this is dead code for most #ifdef cases above.