--- a/libdv/dv.orig.c	2024-03-17 21:51:33.216006756 +0100
+++ b/libdv/dv.c	2024-03-17 21:53:50.975829509 +0100
@@ -35,6 +35,13 @@
  *  @{
  */
 
+#if defined __GNUC__ && __GNUC__ >= 14
+#pragma GCC diagnostic warning "-Wimplicit-function-declaration"
+#pragma GCC diagnostic warning "-Wincompatible-pointer-types"
+#pragma GCC diagnostic warning "-Wint-conversion"
+#pragma GCC diagnostic warning "-Wreturn-mismatch"
+#endif
+
 #if HAVE_CONFIG_H
 # include <config.h>
 #endif
--- a/libdv/quant.orig.c	2024-03-17 22:16:58.212228098 +0100
+++ b/libdv/quant.c	2024-03-17 22:18:20.503660888 +0100
@@ -37,6 +37,13 @@
  *  @{
  */
 
+#if defined __GNUC__ && __GNUC__ >= 14
+#pragma GCC diagnostic warning "-Wimplicit-function-declaration"
+#pragma GCC diagnostic warning "-Wincompatible-pointer-types"
+#pragma GCC diagnostic warning "-Wint-conversion"
+#pragma GCC diagnostic warning "-Wreturn-mismatch"
+#endif
+
 #if HAVE_CONFIG_H
 # include <config.h>
 #endif