From 2a8a726222ad93bf6524a7891b7a4e972b334230 Mon Sep 17 00:00:00 2001
From: Piotr Gaczkowski <DoomHammerNG@gmail.com>
Date: Mon, 17 Jun 2024 09:42:08 +0200
Subject: [PATCH] Make alext.h optional

---
 CMakeLists.txt                    | 2 ++
 src/modules/audio/openal/Audio.h  | 2 ++
 src/modules/audio/openal/Effect.h | 2 ++
 src/modules/audio/openal/Filter.h | 2 ++
 src/modules/audio/openal/Pool.h   | 2 ++
 5 files changed, 10 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a1d8ddcd1..faa3ed17b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -198,6 +198,8 @@ Please see https://github.com/love2d/megasource
 	find_package(OpenAL REQUIRED)
 	target_include_directories(lovedep::OpenAL INTERFACE ${OPENAL_INCLUDE_DIR})
 	target_link_libraries(lovedep::OpenAL INTERFACE ${OPENAL_LIBRARY})
+  include(CheckIncludeFileCXX)
+  check_include_file_cxx("alext.h" HAVE_OPENAL_ALEXT_H)
 
 	find_package(ModPlug REQUIRED)
 	target_include_directories(lovedep::Modplug INTERFACE ${MODPLUG_INCLUDE_DIR})
diff --git a/src/modules/audio/openal/Audio.h b/src/modules/audio/openal/Audio.h
index 5dce39609..501cb1321 100644
--- a/src/modules/audio/openal/Audio.h
+++ b/src/modules/audio/openal/Audio.h
@@ -52,8 +52,10 @@
 #else
 #include <alc.h>
 #include <al.h>
+#if defined(HAVE_OPENAL_ALEXT_H)
 #include <alext.h>
 #endif
+#endif
 
 namespace love
 {
diff --git a/src/modules/audio/openal/Effect.h b/src/modules/audio/openal/Effect.h
index bff3ddfa0..793edb4ea 100644
--- a/src/modules/audio/openal/Effect.h
+++ b/src/modules/audio/openal/Effect.h
@@ -36,8 +36,10 @@
 #else
 #include <alc.h>
 #include <al.h>
+#if defined(HAVE_OPENAL_ALEXT_H)
 #include <alext.h>
 #endif
+#endif
 
 #include <vector>
 #include <map>
diff --git a/src/modules/audio/openal/Filter.h b/src/modules/audio/openal/Filter.h
index c8a4bf46f..654c6205c 100644
--- a/src/modules/audio/openal/Filter.h
+++ b/src/modules/audio/openal/Filter.h
@@ -36,8 +36,10 @@
 #else
 #include <alc.h>
 #include <al.h>
+#if defined(HAVE_OPENAL_ALEXT_H)
 #include <alext.h>
 #endif
+#endif
 
 #include <vector>
 
diff --git a/src/modules/audio/openal/Pool.h b/src/modules/audio/openal/Pool.h
index f44d7f460..79dc6436e 100644
--- a/src/modules/audio/openal/Pool.h
+++ b/src/modules/audio/openal/Pool.h
@@ -48,8 +48,10 @@
 #else
 #include <alc.h>
 #include <al.h>
+#if defined(HAVE_OPENAL_ALEXT_H)
 #include <alext.h>
 #endif
+#endif
 
 namespace love
 {