--- src/liboslexec/CMakeLists.txt.orig	2020-09-05 23:50:56 UTC
+++ src/liboslexec/CMakeLists.txt
@@ -113,7 +113,7 @@ macro ( LLVM_COMPILE llvm_src srclist )
           -Wno-deprecated-register
           -O3 -fno-math-errno -S -emit-llvm -o ${llvm_asm} ${llvm_src}
       COMMAND "${LLVM_DIRECTORY}/bin/llvm-as" -f -o ${llvm_bc} ${llvm_asm}
-      COMMAND python "${CMAKE_CURRENT_SOURCE_DIR}/serialize-bc.py" ${llvm_bc} ${llvm_bc_cpp} "osl_llvm_compiled_ops"
+      COMMAND %%PYCMD%% "${CMAKE_CURRENT_SOURCE_DIR}/serialize-bc.py" ${llvm_bc} ${llvm_bc_cpp} "osl_llvm_compiled_ops"
       MAIN_DEPENDENCY ${llvm_src}
       DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/serialize-bc.py"
               ${exec_headers} ${PROJECT_PUBLIC_HEADERS}
@@ -151,7 +151,7 @@ macro ( CUDA_SHADEOPS_COMPILE srclist )
 
     # Serialize the linked bitcode into a CPP file and add it to the list of liboslexec soures
     add_custom_command ( OUTPUT ${shadeops_bc_cuda_cpp}
-        COMMAND python "${CMAKE_CURRENT_SOURCE_DIR}/serialize-bc.py"
+        COMMAND %%PYCMD%% "${CMAKE_CURRENT_SOURCE_DIR}/serialize-bc.py"
             ${linked_shadeops_bc} ${shadeops_bc_cuda_cpp} "osl_llvm_compiled_ops_cuda"
         DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/serialize-bc.py" ${linked_shadeops_bc}
         ${exec_headers} ${PROJECT_PUBLIC_HEADERS}