Make sure to not overwrite -fsycl option in select files

Removed -fsycl for default linking options on Windows. The option
is added as needed.

Author: oleksandr-pavlyk

dpctl/CMakeLists.txt

@@ -58,7 +58,6 @@ elseif(UNIX)
     string(CONCAT CXXFLAGS
         "${WARNING_FLAGS}"
         "${SDL_FLAGS}"
-        "-fsycl "
     )
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3 ${CFLAGS}")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3 ${CXXFLAGS}")
@@ -190,14 +189,18 @@ function(build_dpctl_ext _trgt _src _dest)
     install(TARGETS ${_trgt} LIBRARY DESTINATION ${_dest})
 endfunction()
 
-file(GLOB _cython_sources *.pyx)
+file(GLOB _cython_sources ${CMAKE_CURRENT_SOURCE_DIR}/*.pyx)
+list(REMOVE_ITEM _cython_sources ${CMAKE_CURRENT_SOURCE_DIR}/_sycl_queue.pyx)
 foreach(_cy_file ${_cython_sources})
     get_filename_component(_trgt ${_cy_file} NAME_WLE)
     build_dpctl_ext(${_trgt} ${_cy_file} "dpctl")
 endforeach()
 
+set(_cy_file ${CMAKE_CURRENT_SOURCE_DIR}/_sycl_queue.pyx)
+get_filename_component(_trgt ${_cy_file} NAME_WLE)
+build_dpctl_ext(${_trgt} ${_cy_file} "dpctl" SYCL)
+
 target_include_directories(_sycl_queue PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
-add_sycl_to_target(TARGET _sycl_queue SOURCES _sycl_queue.cxx)
 
 add_subdirectory(program)
 add_subdirectory(memory)

dpctl/tensor/CMakeLists.txt

@@ -59,11 +59,20 @@ set(_clang_prefix "")
 if (WIN32)
   set(_clang_prefix "/clang:")
 endif()
-set_source_files_properties(
+
+set(_no_fast_math_sources
   ${CMAKE_CURRENT_SOURCE_DIR}/libtensor/source/full_ctor.cpp
   ${CMAKE_CURRENT_SOURCE_DIR}/libtensor/source/linear_sequences.cpp
   ${CMAKE_CURRENT_SOURCE_DIR}/libtensor/source/elementwise_functions.cpp
-  PROPERTIES COMPILE_OPTIONS "${_clang_prefix}-fno-fast-math")
+)
+foreach(_src_fn ${_no_fast_math_sources})
+  get_source_file_property(_cmpl_options_prop ${_src_fn} COMPILE_OPTIONS)
+  set(_combined_options_prop ${_cmpl_options_prop} "${_clang_prefix}-fno-fast-math")
+  set_source_files_properties(
+     ${_src_fn}
+     PROPERTIES COMPILE_OPTIONS "${_combined_options_prop}"
+  )
+endforeach()
 if (UNIX)
   set_source_files_properties(
     ${CMAKE_CURRENT_SOURCE_DIR}/libtensor/source/elementwise_functions.cpp