Runtime errors with testglib.exe (Win32 build)

[John Emmas <johne53 tiscali co uk>]

I'm running glib version 2.24.0.  It probably isn't the very latest stuff but reasonably current, I think.

Having recently built it under Win32 (using Visual C++) I decided to run the test application (testglib.exe). 
 Everything runs fine until I get to the File Functions test, at which point I keep getting debug assertions. 
 These seem to be caused by the code calling close() with an invalid file handle (I.e. a handle value of -1). 
For example, this code (starting at line 881 of file tesglib.c) will assert when it reaches the close(); 
statement:- 

char template[32];
gint fd;

[ ... ]

strcpy (template, "foobar"); 
fd = g_mkstemp (template); 
if (g_test_verbose() && fd != -1) 
   g_print ("g_mkstemp works even if template doesn't end in XXXXXX\n"); 

close (fd); 

Despite the displayed message, g_mkstemp() seems NOT to work unless the supplied template string ends in 
"XXXXXX" - so this section of code returns an invalid file handle.  The line 'close(fd);' then gives me a 
debug assertion error.

There's at least one other place where this is happening (which I haven't tracked down yet).  I just wondered 
if this is a known problem or if I need to provide some more information.

John