File 34.patch of Package aqualung

From 1a29597b17ea6fbcd19b2a63ca172d782f6aa0f8 Mon Sep 17 00:00:00 2001
From: Davide Cavalca <dcavalca@fedoraproject.org>
Date: Wed, 6 Sep 2023 21:32:59 -0700
Subject: [PATCH] Add platform define when enabling mac

---
 configure.ac | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 7e46398c..262e3801 100644
--- a/configure.ac
+++ b/configure.ac
@@ -277,7 +277,13 @@ AQUALUNG_DETECT([lavc], [Libav / FFmpeg],
 
 AQUALUNG_DETECT([MAC], [Monkey's Audio Codec],
     [AC_CHECK_LIB([MAC], [CreateIAPEDecompress],
-        [AQUALUNG_FOUND([MAC], [-lMAC -lstdc++])],
+        [
+          AQUALUNG_FOUND([MAC], [-lMAC -lstdc++]),
+          AS_CASE([$host_os],
+            [cygwin*|mingw*], [AC_DEFINE([PLATFORM_WINDOWS], [1], [Defined if Windows])],
+            [darwin*], [AC_DEFINE([PLATFORM_DARWIN], [1], [Defined if Darwin])],
+            [linux*], [AC_DEFINE([PLATFORM_LINUX], [1], [Defined if Linux])])
+        ],
         [AQUALUNG_MISSING([MAC],
             [Monkey's Audio Codec support requires libMAC])],
         [-lstdc++])])