Dear Sir,
I am writing to thank you for your letter and say,
On Sat, Nov 06, 2004 at 12:25:01PM +0100, Tassilo von Parseval wrote:
> This is threads-related (note that your perl has useithreads=define). In
> a thusly configured perl, many functions and macros of the perlapi need
> to have the thread-context in scope. This is achieved by providing the
> (aTHX|pTHX)_ macros. So PerlPower probably needs to be prototyped like
> this:
>
> static void
> PerlPower(pTHX_ int a, int b)
> {
> ...
> }
>
> and called this way:
>
> PerlPower(aTHX_ 3, 4);
>
> Those macros are empty when your perl is not threaded. Also, for
> functions not receiving any argument, you use pTHX and aTHX which is the
> same as their underscore-counterpart only that they don't contain a
> comma in their expansion.
>
Thank you very much for the clue.
Time to try and understand perlguts again.
Adding the extra fooTHX_'s to the declaration and call leads to
[EMAIL PROTECTED] hack_validate_perl_calls $ gcc -o power `perl
-MExtUtils::Embed -e ccopts -e ldopts`
/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/../../../crt1.o(.text+0x18): In
function `_start':
: undefined reference to `main'
collect2: ld returned 1 exit status
Thank you very much for your help,
Yours sincerely.
--
Stanley Hopcroft
Network specialist, IT Infrastructure
IP Australia
Ph: (02) 6283 3189 Fax: (02) 6281 1353
PO Box 200 Woden ACT 2606
http://www.ipaustralia.gov.au
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