From b2c707747da9f930a05499e98874c35d9aee7193 Mon Sep 17 00:00:00 2001
From: Sergey Sharybin <sergey.vfx@gmail.com>
Date: Wed, 29 Aug 2018 15:08:28 +0200
Subject: [PATCH] CMake: Comply with include path reported by FindOpenGL.cmake

The script clearly states:

  This makes the presumption that you are include al.h like
  #include "al.h"
  and not
  #include <AL/al.h>
  The reason for this is that the latter is not entirely portable.
  Windows/Creative Labs does not by default put their headers in AL/ and
  OS X uses the convention <OpenAL/al.h>.

This commit makes default precompiled OpenAL to be properly detected
and also removes hack on MacOS which was finding the OpenAL package but
then was overwriting include directory.

Note, that new audaspace in 2.8 is using expected #include <al.h>.
---
 build_files/cmake/platform/platform_apple.cmake | 1 -
 build_files/cmake/platform/platform_win32.cmake | 2 +-
 intern/audaspace/OpenAL/AUD_OpenALDevice.h      | 4 ++--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/build_files/cmake/platform/platform_apple.cmake b/build_files/cmake/platform/platform_apple.cmake
index faed0cf25fc..b9c898e60d8 100644
--- a/build_files/cmake/platform/platform_apple.cmake
+++ b/build_files/cmake/platform/platform_apple.cmake
@@ -43,7 +43,6 @@ if(WITH_OPENAL)
 	find_package(OpenAL)
 	if(OPENAL_FOUND)
 		set(WITH_OPENAL ON)
-		set(OPENAL_INCLUDE_DIR "${LIBDIR}/openal/include")
 	else()
 		set(WITH_OPENAL OFF)
 	endif()
diff --git a/build_files/cmake/platform/platform_win32.cmake b/build_files/cmake/platform/platform_win32.cmake
index 1460808038d..07dc3ec0671 100644
--- a/build_files/cmake/platform/platform_win32.cmake
+++ b/build_files/cmake/platform/platform_win32.cmake
@@ -556,7 +556,7 @@ set(WINTAB_INC ${LIBDIR}/wintab/include)
 if(WITH_OPENAL)
 	set(OPENAL ${LIBDIR}/openal)
 	set(OPENALDIR ${LIBDIR}/openal)
-	set(OPENAL_INCLUDE_DIR ${OPENAL}/include)
+	set(OPENAL_INCLUDE_DIR ${OPENAL}/include/AL)
 	set(OPENAL_LIBPATH ${OPENAL}/lib)
 	if(MSVC)
 		set(OPENAL_LIBRARY ${OPENAL_LIBPATH}/openal32.lib)
diff --git a/intern/audaspace/OpenAL/AUD_OpenALDevice.h b/intern/audaspace/OpenAL/AUD_OpenALDevice.h
index f0e47824967..4fe7a5dcf39 100644
--- a/intern/audaspace/OpenAL/AUD_OpenALDevice.h
+++ b/intern/audaspace/OpenAL/AUD_OpenALDevice.h
@@ -37,8 +37,8 @@
 #include "AUD_Buffer.h"
 //struct AUD_OpenALBufferedFactory;
 
-#include <AL/al.h>
-#include <AL/alc.h>
+#include <al.h>
+#include <alc.h>
 #include <list>
 #include <pthread.h>