Implemented lazy load of platform specific functionallity, and a different test for that functionallity.

suggest-require.lua

@@ -56,10 +56,13 @@ local function package_config ()
     }
 end
 
-local iterate_files_in_subfiles
+local iterate_files_in_subfiles = function (...)
+    -- This outer function is a wrapper, that lazily loads the correct
+    -- version of the iterate function, based on the availability of
+    -- the commands.
 
-if package_config().dir_sep == '/' then
+    if os.execute 'find -false' == 0  then
-    function iterate_files_in_subfiles (root_path)
+        iterate_files_in_subfiles = function (root_path)
             -- On unix
             -- Use `find` to find files in folders below the given matching.
 
@@ -71,9 +74,14 @@ if package_config().dir_sep == '/' then
 
             return list_str:gmatch '[^%z]+'
         end
-else
+    else
-    -- On windows
+        -- Other platforms
-    error '[suggest-require]: Windows is not currently supported.'
+        error '[suggest-require]: Your platform does not possess the "find" utility, and is thus not currently supported.'
+    end
+
+    -----
+
+    return iterate_files_in_subfiles(...)
 end
 
 --------------------------------------------------------------------------------
@@ -199,7 +207,7 @@ local function get_available_module_names ()
     for name in pairs(dedub) do  module_names[#module_names+1] = name  end
     table.sort(module_names)
 
-    -- Output assertions
+    -- Assert that output is correctly formatted
     assert(type(module_names) == 'table')
     for i = 1, #module_names do
         assert(type(module_names[i]) == 'string')