[Bf-blender-cvs] [596a9c6983c] temp-T96710-pbvh-pixels: Add CMake option to control CUDA host compiler

[howetuft]

Commit: 596a9c6983c3e3d64f2c3733a53865d971924f77
Author: howetuft
Date:   Mon Mar 7 15:42:47 2022 +0100
Branches: temp-T96710-pbvh-pixels
https://developer.blender.org/rB596a9c6983c3e3d64f2c3733a53865d971924f77

Add CMake option to control CUDA host compiler

This revision allows to specify CUDA host compiler (nvcc's -ccbin command
line option) when configuring the build. It addresses the case where the
C/C++ compiler to be used in CUDA toolchain should be different from the
default C/C++ compiler, for instance in case of compilers versions conflicts
or multiple installed compilers.

The new CMake option is named `CUDA_HOST_COMPILER` and can be used as follows:
`cmake -DCUDA_HOST_COMPILER=<path-to-host-compiler>`

If the option is not specified, the build configuration behaves as previously.

Differential Revision: https://developer.blender.org/D14248

===================================================================

M	intern/cycles/kernel/CMakeLists.txt

===================================================================

diff --git a/intern/cycles/kernel/CMakeLists.txt b/intern/cycles/kernel/CMakeLists.txt
index cfd503a621d..d660289ed17 100644
--- a/intern/cycles/kernel/CMakeLists.txt
+++ b/intern/cycles/kernel/CMakeLists.txt
@@ -407,6 +407,11 @@ if(WITH_CYCLES_CUDA_BINARIES)
       -o ${CMAKE_CURRENT_BINARY_DIR}/${cuda_file}
       -Wno-deprecated-gpu-targets)
 
+    if(CUDA_HOST_COMPILER)
+      set(cuda_flags ${cuda_flags}
+        -ccbin="${CUDA_HOST_COMPILER}")
+    endif()
+
     if(WITH_NANOVDB)
       set(cuda_flags ${cuda_flags}
         -D WITH_NANOVDB