diff --git a/src/dialogs/tools.c b/src/dialogs/tools.c
index a0db079..c174d8a 100644
--- a/src/dialogs/tools.c
+++ b/src/dialogs/tools.c
@@ -95,3 +95,14 @@
 
  }
 
+ #if ! GLIB_CHECK_VERSION(2,44,0)
+
+ // Reference: https://github.com/ImageMagick/glib/blob/master/glib/glib-autocleanups.h
+ void v3270_autoptr_cleanup_generic_gfree(void *p)
+ {
+	void **pp = (void**)p;
+	g_free (*pp);
+ }
+
+ #endif // ! GLIB(2,44,0)
+
diff --git a/src/include/internals.h b/src/include/internals.h
index f6fb949..937087c 100644
--- a/src/include/internals.h
+++ b/src/include/internals.h
@@ -39,12 +39,7 @@
 
  #if ! GLIB_CHECK_VERSION(2,44,0)
 
-	// Reference: https://github.com/ImageMagick/glib/blob/master/glib/glib-autocleanups.h
-	static inline void v3270_autoptr_cleanup_generic_gfree(void *p)
-	{
-		void **pp = (void**)p;
-		g_free (*pp);
-	}
+	G_GNUC_INTERNAL void v3270_autoptr_cleanup_generic_gfree(void *p);
 
 	#define g_autofree __attribute__((cleanup(v3270_autoptr_cleanup_generic_gfree)))
 
--
libgit2 0.21.2