From e6910406bbf32adbe2451b33158047fcdec94351 Mon Sep 17 00:00:00 2001
From: Michael Fabian 'Xaymar' Dirks <info@xaymar.com>
Date: Sun, 14 Feb 2021 13:15:22 +0100
Subject: [PATCH] cmake: Fix features being enabled on unsupported platforms

---
 CMakeLists.txt | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4a57ed2c..92ed829c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -505,9 +505,9 @@ function(is_feature_enabled FEATURE OUTPUT)
 	endif()
 endfunction()
 
-function(set_feature_disabled FEATURE DISABLED)
+macro(set_feature_disabled FEATURE DISABLED)
 	set(${PREFIX}DISABLE_${FEATURE} ${DISABLED} PARENT_SCOPE)
-endfunction()
+endmacro()
 
 # Features
 function(feature_encoder_ffmpeg RESOLVE)
@@ -712,8 +712,9 @@ if(REQUIRE_JSON)
 	endif()
 endif()
 
+# NVIDIA Augmented Reality SDK (Windows)
 set(HAVE_NVIDIA_ARSDK OFF)
-if(REQUIRE_NVIDIA_ARSDK)
+if(REQUIRE_NVIDIA_ARSDK AND D_PLATFORM_WINDOWS)
 	if(EXISTS "${PROJECT_SOURCE_DIR}/third-party/nvidia-arsdk/version.h")
 		set(NVAR_ROOT "${PROJECT_SOURCE_DIR}/third-party/nvidia-arsdk")
 	endif()
@@ -723,8 +724,9 @@ if(REQUIRE_NVIDIA_ARSDK)
 	set(HAVE_NVIDIA_ARSDK ${NVAR_FOUND})
 endif()
 
+# NVIDIA CUDA (Windows)
 set(HAVE_NVIDIA_CUDA OFF)
-if(REQUIRE_NVIDIA_CUDA)
+if(REQUIRE_NVIDIA_CUDA AND D_PLATFORM_WINDOWS)
 	set(HAVE_NVIDIA_CUDA ON)
 endif()