From 3001148ca9ac2078b3ad425fa3003da6c03b88c0 Mon Sep 17 00:00:00 2001
From: Pierre Moreau <pierremoreau@users.noreply.github.com>
Date: Tue, 30 Apr 2019 16:20:20 +0200
Subject: [PATCH] cl21: CMake improvements (#236)

* Do not append non-existing folder to CMAKE_MODULE_PATH

Fixes #221

* Add use of deprecated OpenCL 1.2 and 2.1 APIs

* Define CL_TARGET_OPENCL_VERSION to 210

Fixes #227

* Define cmake_minimum_required as first operation

The CMake documentation mentions that
> Call the cmake_minimum_required() command at the beginning of the
> top-level CMakeLists.txt file even before calling the project()
> command. It is important to establish version and policy settings
> before invoking other commands whose behavior they may affect.

* CMake: Match both AppleClang and Clang
---
 CMakeLists.txt | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index dd93e421..454f0a1e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,5 @@
+cmake_minimum_required(VERSION 3.1)
+
 set( CONFORMANCE_SUFFIX "" )
 
 set(CLConform_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
@@ -18,14 +20,13 @@ set(CLConform_VERSION "${CLConform_VERSION_MAJOR}.${CLConform_VERSION_MINOR}")
 set(CLConform_VERSION_FULL
     "${CLConform_VERSION}.${CLConform_VERSION_MICRO}${CLConform_VERSION_EXTRA}")
 
-cmake_minimum_required(VERSION 3.1)
+add_definitions(-DCL_TARGET_OPENCL_VERSION=210)
 
+add_definitions(-DCL_USE_DEPRECATED_OPENCL_2_1_APIS=1)
 add_definitions(-DCL_USE_DEPRECATED_OPENCL_2_0_APIS=1)
+add_definitions(-DCL_USE_DEPRECATED_OPENCL_1_2_APIS=1)
 add_definitions(-DCL_USE_DEPRECATED_OPENCL_1_1_APIS=1)
 
-# where to look first for cmake modules, before ${CMAKE_ROOT}/Modules/ is checked
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules)
-
 
 # Support both VS2008 and VS2012.
 set(BUILD_DIR "$ENV{ADRENO_DRIVER}/build")
@@ -61,7 +62,7 @@ include(CMakeVendor.txt OPTIONAL)
 include(CheckFunctionExists)
 include(CheckIncludeFiles)
 
-if(CMAKE_COMPILER_IS_GNUCC OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+if(CMAKE_COMPILER_IS_GNUCC OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "(Apple)?Clang")
     # -msse -mfpmath=sse to force gcc to use sse for float math,
     # avoiding excess precision problems that cause tests like int2float
     # to falsely fail. -ffloat-store also works, but WG suggested
@@ -79,7 +80,7 @@ else()
 endif()
 
 # Clang gives C++11 narrowing warnings so suppress these for now
-if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+if("${CMAKE_CXX_COMPILER_ID}" MATCHES "(Apple)?Clang")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-c++11-narrowing")
 endif()