Hello all, When I try to feed this prototype
void register_callback (SV *callback); to h2xs, I get this error: [ ... ] Scanning /home/jw/mymod/mymod.h for functions... Expecting parenth after identifier in `SV *callback' after `SV ' at /usr/lib/perl5/site_perl/5.8.7/C/Scan.pm line 797. make: *** [xs] Error 255 Obviously, the reason is that the SV datatype is not defined. So I include perl.h to make this definition available: # include <perl.h> void register_callback (SV *callback); Now h2xs runs almost forever, and reports the same error for some system files: Expecting parenth after identifier in `fd_set *__restrict __readfds' after `fd_set ' at /usr/lib/perl5/site_perl/5.8.7/C/Scan.pm line 797. So I remove the #include and add a fake typedef just to make h2xs happy: # ifdef FOR_H2XS_ONLY typedef void SV; # endif void register_callback (SV *callback); With this, h2xs happily produces exactly the desired output. But now I get a compile error because this typedef conflicts with the original typedef in perl.h So I need some kludge to make this fake typedef visible _only_ to h2xs but not to the compiler. The closest I could find is h2xs [ ... ] -F -DFOR_H2XS_ONLY [ ... ] But unfortunately, h2xs adds this to Makefile.PL too, so the compiler sees the same definition as h2xs: [ ... ] cc -c [ ... ] -DFOR_H2XS_ONLY [ ... ] Mymod.c In file included from Mymod.xs:7: /home/jw/mymod/mymod.h:12: error: conflicting types for ‘SV’ /usr/lib/perl5/5.8.7/i586-linux-thread-multi/CORE/perl.h:2024: error: previous declaration of ‘SV’ was here Anybody have any idea how to properly make h2xs parse "SV *foo" arguments?
