--- faad2/libfaad/decoder.c.orig	2007-11-01 13:33:30.000000000 +0100
+++ faad2/libfaad/decoder.c	2007-11-04 12:36:41.315350439 +0100
@@ -1115,3 +1115,57 @@
 
     return NULL;
 }
+
+#ifndef NO_BACKWARD_COMPAT
+#  define ALIAS(type, func, target) type NEAACDECAPI func __attribute__((alias(#target)))
+
+#undef faacDecGetErrorMessage
+ALIAS(char*, faacDecGetErrorMessage(uint8_t errcode),
+	NeAACDecGetErrorMessage);
+
+#undef faacDecSetConfiguration
+ALIAS(uint8_t, faacDecSetConfiguration(NeAACDecHandle hDecoder,
+				       NeAACDecConfigurationPtr config),
+	NeAACDecSetConfiguration);
+
+#undef faacDecGetCurrentConfiguration
+ALIAS(NeAACDecConfigurationPtr, faacDecGetCurrentConfiguration(NeAACDecHandle hDecoder),
+	NeAACDecGetCurrentConfiguration);
+
+#undef faacDecInit
+ALIAS(int32_t, faacDecInit(NeAACDecHandle hDecoder, uint8_t *buffer,
+			   uint32_t buffer_size, uint32_t *samplerate, uint8_t *channels),
+	NeAACDecInit);
+
+#undef faacDecInit2
+ALIAS(int8_t, faacDecInit2(NeAACDecHandle hDecoder, uint8_t *pBuffer,
+			   uint32_t SizeOfDecoderSpecificInfo,
+			   uint32_t *samplerate, uint8_t *channels),
+	NeAACDecInit2);
+
+#ifdef DRM
+#undef faacDecInitDRM
+ALIAS(int8_t, faacDecInitDRM(NeAACDecHandle *hDecoder, uint32_t samplerate,
+			     uint8_t channels),
+	NeAACDecInitDRM);
+#endif
+
+#undef faacDecPostSeekReset
+ALIAS(void, faacDecPostSeekReset(NeAACDecHandle hDecoder, int32_t frame),
+	NeAACDecPostSeekReset);
+
+#undef faacDecOpen
+ALIAS(NeAACDecHandle, faacDecOpen(void),
+	NeAACDecOpen);
+
+#undef faacDecClose
+ALIAS(void, faacDecClose(NeAACDecHandle hDecoder),
+	NeAACDecClose);
+
+#undef faacDecDecode
+ALIAS(void*, faacDecDecode(NeAACDecHandle hDecoder,
+			   NeAACDecFrameInfo *hInfo,
+			   uint8_t *buffer, uint32_t buffer_size),
+	NeAACDecDecode);
+
+#endif
--- faad2-2.10.1/libfaad/mp4.c.orig	2023-03-30 20:51:02.976701799 +0200
+++ faad2-2.10.1/libfaad/mp4.c	2023-03-30 20:52:50.676118341 +0200
@@ -310,3 +310,14 @@ int8_t AudioSpecificConfig2(uint8_t *pBu
     faad_endbits(&ld);
     return ret;
 }
+
+#ifndef NO_BACKWARD_COMPAT
+#  define ALIAS(type, func, target) type NEAACDECAPI func __attribute__((alias(#target)))
+
+#undef AudioSpecificConfig
+ALIAS(int8_t, AudioSpecificConfig(uint8_t *pBuffer,
+				  uint32_t buffer_size,
+				  mp4AudioSpecificConfig *mp4ASC),
+	NeAACDecAudioSpecificConfig);
+
+#endif