diff -Naur aqualung-1.2_orig/configure.ac aqualung-1.2/configure.ac
--- aqualung-1.2_orig/configure.ac	2023-08-13 18:12:52.281251038 +0200
+++ aqualung-1.2/configure.ac	2023-08-13 18:13:55.693247259 +0200
@@ -275,11 +275,11 @@
         [AQUALUNG_FOUND([lavc])],
         [AQUALUNG_MISSING([lavc], [$lavc_PKG_ERRORS])])])
 
-AQUALUNG_DETECT([mac], [Monkey's Audio Codec],
-    [AC_CHECK_LIB([mac], [CreateIAPEDecompress],
-        [AQUALUNG_FOUND([mac], [-lmac -lstdc++])],
-        [AQUALUNG_MISSING([mac],
-            [Monkey's Audio Codec support requires libmac])],
+AQUALUNG_DETECT([MAC], [Monkey's Audio Codec],
+    [AC_CHECK_LIB([MAC], [CreateIAPEDecompress],
+        [AQUALUNG_FOUND([MAC], [-lMAC -lstdc++])],
+        [AQUALUNG_MISSING([MAC],
+            [Monkey's Audio Codec support requires libMAC])],
         [-lstdc++])])
 
 AQUALUNG_DETECT([mod], [MOD Audio],
diff -Naur aqualung-1.2_orig/src/decoder/dec_mac.cpp aqualung-1.2/src/decoder/dec_mac.cpp
--- aqualung-1.2_orig/src/decoder/dec_mac.cpp	2023-08-13 18:20:40.318223141 +0200
+++ aqualung-1.2/src/decoder/dec_mac.cpp	2023-08-13 18:21:33.661219962 +0200
@@ -31,9 +31,9 @@
 #define DLLEXPORT
 
 #include "../undef_ac_pkg.h"
-#include <mac/All.h>
-#include <mac/MACLib.h>
-#include <mac/CharacterHelper.h>
+#include <MAC/All.h>
+#include <MAC/MACLib.h>
+#include <MAC/CharacterHelper.h>
 #include "../undef_ac_pkg.h"
 #include <config.h>	/* re-establish undefined autoconf macros */
 
diff -Naur aqualung-1.2_orig/src/Makefile.am aqualung-1.2/src/Makefile.am
--- aqualung-1.2_orig/src/Makefile.am	2023-08-14 00:51:00.972827161 +0200
+++ aqualung-1.2/src/Makefile.am	2023-08-14 00:51:10.563826590 +0200
@@ -25,7 +25,7 @@
 aqualung_LDADD = $(LDADD) $(xml_LIBS) $(gtk_LIBS) $(glib_LIBS) \
                  $(alsa_LIBS) $(jack_LIBS) $(oss_LIBS) $(pulse_LIBS) \
                  $(sndio_LIBS) $(winmm_LIBS) \
-                 $(flac_LIBS) $(lame_LIBS) $(lavc_LIBS) $(mac_LIBS) \
+                 $(flac_LIBS) $(lame_LIBS) $(lavc_LIBS) $(MAC_LIBS) \
                  $(mad_LIBS) $(mod_LIBS) $(mpc_LIBS) $(sndfile_LIBS) \
                  $(speex_LIBS) $(vorbis_LIBS) $(vorbisenc_LIBS) \
                  $(wavpack_LIBS) \