Dan Sugalski <[EMAIL PROTECTED]> writes:
>At 10:35 AM 10/5/00 -0800, Michael wrote:
>>in my Module.xs file there is the declaration
>> CODE:
>> printf("# destroying %s\n", SvPV(ST(0),na) );
>> safefree( (char*)self );
>>
>>I get this error???? any clues would be appreciated
>>
>>`na' undeclared (first use in this function)
>
>na was renamed PL_na as of 5.005. There was a backwards-compatibility
>#define in the 5.005 tree to make na be PL_na, but that went away by
>default as of 5.6.0. Either change the na to PL_na (which would be best) or
>turn on pollution in the makefile step. (How is left as an exercise for the
>reader, since it's really not the best way to do it)
Better yet:
A. use SvPV_nolen()
B. Declare your own
STRLEN na;
The reason these are better is that accessing PL_na involves getting access
to thread-local storage under threads - which is a non-trivial cost for
something you are not using!
(B) is 100% backward compatible.
--
Nick Ing-Simmons
