cmake: correct intel compiler options

Author: scivision

CMakeLists.txt

@@ -31,11 +31,12 @@ if(CMAKE_Fortran_COMPILER_ID STREQUAL GNU)
     add_compile_options(-pedantic-errors)
   endif()
   add_compile_options(-std=f2018)
-elseif(CMAKE_Fortran_COMPILER_ID STREQUAL Intel)
-  add_compile_options(-warn declarations,general,usage,interfaces,unused)
-  if(CMAKE_Fortran_COMPILER_VERSION VERSION_LESS 18.0)
-    add_compile_options(-stand f15)
+elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^Intel")
+  if(WIN32)
+    add_compile_options(/warn:declarations,general,usage,interfaces,unused)
+    add_compile_options(/stand:f18)
   else()
+    add_compile_options(-warn declarations,general,usage,interfaces,unused)
     add_compile_options(-stand f18)
   endif()
 elseif(CMAKE_Fortran_COMPILER_ID STREQUAL PGI)
@@ -45,7 +46,7 @@ endif()
 # --- compiler feature checks
 include(CheckFortranSourceCompiles)
 include(CheckFortranSourceRuns)
-check_fortran_source_runs("i=0; error stop i; end" f18errorstop SRC_EXT f90)
+check_fortran_source_runs("i=0; error stop i; end" f18errorstop)
 check_fortran_source_compiles("real, allocatable :: array(:, :, :, :, :, :, :, :, :, :); end" f03rank SRC_EXT f90)
 check_fortran_source_runs("use, intrinsic :: iso_fortran_env, only : real128; real(real128) :: x; x = x+1; end" f03real128)