Add options for Intel oneAPI 2025.0 ifx on Windows

Author: martin-frbg

cmake/f_check.cmake

@@ -45,13 +45,15 @@ if (NOT ONLY_CBLAS)
 
   # TODO: detect whether underscore needed, set #defines and BU appropriately - use try_compile
   # TODO: set FEXTRALIB flags a la f_check?
-
+  if (NOT (${CMAKE_SYSTEM_NAME} MATCHES "Windows" AND ${CMAKE_Fortran_COMPILER_ID} MATCHES "IntelLLVM"))
   set(BU "_")
   file(APPEND ${TARGET_CONF_TEMP}
     "#define BUNDERSCORE _\n"
     "#define NEEDBUNDERSCORE 1\n"
     "#define NEED2UNDERSCORES 0\n")
-
+  else ()
+	  set (FCOMMON_OPT "${FCOMMON_OPT} /fp:precise /recursive /names:lowercase /assume:nounderscore")
+  endif()
 else ()
 
   #When we only build CBLAS, we set NOFORTRAN=2