iswsl on macos

Author: scivision

+stdlib/+sys/iswsl.m

@@ -1,16 +1,17 @@
-%!assert(islogical(iswsl))
-
 function yeswsl = iswsl()
 persistent wsl;
 
 if isempty(wsl)
-  if isunix
+  wsl = false;
+  yeswsl = false;
+  if isunix && ~ismac
     fid = fopen('/proc/version');
+    if fid < 1
+      return
+    end
     v = fscanf(fid,'%s');
     fclose(fid);
-    wsl = contains(v, 'Microsoft'); % contains() not in octave
-  else
-    wsl = false;
+    wsl = contains(v, 'microsoft-standard');
   end
 end