On Linux, favor local symbols when loading a shared library

drivers/unix/os_unix.cpp

@@ -81,6 +81,10 @@
 #include <time.h>
 #include <unistd.h>
 
+#ifndef RTLD_DEEPBIND
+#define RTLD_DEEPBIND 0
+#endif
+
 #if defined(MACOS_ENABLED) || (defined(__ANDROID_API__) && __ANDROID_API__ >= 28)
 // Random location for getentropy. Fitting.
 #include <sys/random.h>
@@ -646,7 +650,7 @@ Error OS_Unix::open_dynamic_library(const String p_path, void *&p_library_handle
 		path = get_executable_path().get_base_dir().path_join("../lib").path_join(p_path.get_file());
 	}
 
-	p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW);
+	p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW | RTLD_DEEPBIND);
 	ERR_FAIL_NULL_V_MSG(p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, dlerror()));
 
 	if (r_resolved_path != nullptr) {