Using thread local variables instead of the global ones

[Daniel Morissette]

Frank Warmerdam wrote:
> 
>> \mapserver\mapwms.c(249):static char *wms_exception_format=NULL;
>> \mapserver\mapwms.c(2779):  static char *request=NULL,
>> *service=NULL, *format=NULL;
> 
> 
> not too sure.
> 

The first one would need some work to be made thread-safe.

The second one must have been a mistake, I have changed them to const in 
the 4.9 CVS.

Daniel
-- 
Daniel Morissette
http://www.mapgears.com/