From https://developer.blender.org/rB74477149dddfddeca71be6770d520f870c0b5bc9
From: Josh Whelchel <soundofjw>
Date: Tue, 6 Sep 2022 15:39:39 +0200
Subject: [PATCH 663/965] Fix T100845: wrong Cycles OptiX runtime compilation
 include path

Causing OptiX kernel build errors on Arch Linux.

Differential Revision: https://developer.blender.org/D15891
--- a/intern/cycles/device/optix/device_impl.cpp
+++ b/intern/cycles/device/optix/device_impl.cpp
@@ -364,7 +364,7 @@ string OptiXDevice::compile_kernel_get_common_cflags(const uint kernel_features)
   string common_cflags = CUDADevice::compile_kernel_get_common_cflags(kernel_features);
 
   /* Add OptiX SDK include directory to include paths. */
-  common_cflags += string_printf(" -I\"%s/include\"", get_optix_include_dir().c_str());
+  common_cflags += string_printf(" -I\"%s\"", get_optix_include_dir().c_str());
 
   /* Specialization for shader raytracing. */
   if (kernel_features & KERNEL_FEATURE_NODE_RAYTRACE) {
-- 
2.37.3