[casper] Patch for windows with cygwin

[Gopal Narayanan]

Hello,

I am not sure who to send this patch to since there are multiple
mlib_devel github repositories, so I thought a general email would be
better.

The latest version of CASPER tools fail in the last stages with a
cryptic error message. I have tracked it down to a problem in
gen_xps_files.m wherein if you have a windows system with Cygwin
installed, it assumes it is a unix-like OS, and then fails to run some
bat files.

Attached is a simple patch to gen_xps_files.m. Hope this helps someone.

Gopal

-- 
Gopal Narayanan                          Ph #: (413) 545 0925
Department of Astronomy                  e-mail: go...@astro.umass.edu
University of Massachusetts              Amherst MA 01003

--- gen_xps_files.m.old	2012-08-22 13:34:45.000000000 -0400
+++ gen_xps_files.m	2012-08-22 13:33:57.000000000 -0400
@@ -91,9 +91,14 @@
   disp(sprintf('Detected Linux OS'));
   system_os = 'linux';
 else
-  slash = '/';
-  disp(sprintf('Detected Unknown Unix-like OS'));
-  system_os = 'linux';
+  if ~isempty(regexp(w, 'windows'))
+    disp(sprintf('Detected Cygwin-like Windows OS'));
+    system_os = 'windows';
+  else
+    slash = '/';
+    disp(sprintf('Detected Unknown Unix-like OS'));
+    system_os = 'linux';
+  end
 end
 
 xps_blks        = find_system(sys,'FollowLinks','on','LookUnderMasks','all','RegExp','on','Tag','^xps:');