[haiku] Re: Perl XS problems
- From: Sean Healy <jalopeura@xxxxxxxxxxx>
- To: haiku@xxxxxxxxxxxxx
- Date: Fri, 13 Mar 2009 16:33:53 +0100
Ingo Weinhold wrote:
On 2009-03-12 at 23:09:20 [+0100], Sean Healy <jalopeura@xxxxxxxxxxx> wrote:
I'm writing a Perl extension to interface with Haiku's kits. I'm getting
errors from Perl's own header files. However, since somebody (apparently
Ingo) was able to build Perl on Haiku in the first place, I'm sure there
is a solution. If anyone can help point me in the right direction, that
would be great.
(By the way, I'm using the 2.95 compiler. I verified that Perl was also
built with the 2.95 compiler.)
/boot/common/bin/perl /boot/common/lib/perl5/5.10.0/ExtUtils/xsubpp
-C++ -typemap /boot/common/lib/perl5/5.10.0/ExtUtils/typemap -typemap
typemap ApplicationKit.xs > ApplicationKit.xsc && mv ApplicationKit.xsc
ApplicationKit.c
Please specify prototyping behavior for ApplicationKit.xs (see perlxs
manual)
Not sure what this is supposed to mean. I guess checking out the perlxs
manual as suggested might help.
Apparently, xsubpp is just being picky. It wants XS files to use the
PROTOTYPES directive, but works just fine without it. So this problem
turned out to be a) not a Haiku issue, and b) not really an issue anyway.
g++ -c -I. -fno-strict-aliasing -pipe -O -DVERSION=\"0.01\"
-DXS_VERSION=\"0.01\" -fpic
"-I/boot/common/lib/perl5/5.10.0/BePC-haiku/CORE" ApplicationKit.c
In file included from
/BeStuff/Perl_Haiku_Kits/working/Haiku-ApplicationKit/ApplicationKit.xs:5:
/boot/common/lib/perl5/5.10.0/BePC-haiku/CORE/perl.h:1586: badly
punctuated parameter list in `#define'
/boot/common/lib/perl5/5.10.0/BePC-haiku/CORE/perl.h:1598: badly
punctuated parameter list in `#define'
This is interesting. Apparently the gcc 2.95.3 C compiler supports C99
variadic macros while the C++ compiler doesn't. Perl itself is C only, so
there was no problem with building it. You could try to undef the
HAS_C99_VARIADIC_MACROS macro in config.h. Maybe that will work.
At any rate, please file a bug report at HaikuPorts.
Yes, that worked. Hopefully it won't have any unexpected side effects.
I have requested a HaikuPorts account so I can file a bug report.
In file included from
/BeStuff/Perl_Haiku_Kits/working/Haiku-ApplicationKit/ApplicationKit.xs:5:
/boot/common/lib/perl5/5.10.0/BePC-haiku/CORE/perl.h:2555:
haiku/haikuish.h: No such file or directory
Ugh, that file has apparently not been installed. Not sure why -- I might
have missed adding it to some file listing. You can get it from the patch on
HaikuPorts (Scott sent the link to the port log); it's only a few lines
long. The file must probably live in .../BePC-haiku/CORE/haiku/.
Again, please file a bug report at HaikuPorts.
That was apparently the right place, as it cleared up the problem.
In file included from
/BeStuff/Perl_Haiku_Kits/working/Haiku-ApplicationKit/ApplicationKit.xs:11:
/BeStuff/Perl_Haiku_Kits/working/Haiku-ApplicationKit/ppport.h:4267:
Invalid token in expression
After some searching, I discovered that ppport is apparently not
necessary. It's basically a way to make some newer Perl features
available to older versions. Since Haiku is new, presumably the vast
majority of people who might compile my extension will be not be using
one of the older versions. So for now I simply commented out the include.
The offending line, by the way, is contained within
#if (PERL_BCDVERSION < 0x5004063)
..
#endif
so I'm not sure why it's even being compiled. PERL_BCDVERSION is defined
via PERL_REVISION, PERL_VERSION, and PERL_SUBVERSION, all of which seem
to be set properly in patchlevel.h
In file included from
/boot/common/lib/perl5/5.10.0/BePC-haiku/CORE/perl.h:4695,
from
/BeStuff/Perl_Haiku_Kits/working/Haiku-ApplicationKit/ApplicationKit.xs:5:
/boot/common/lib/perl5/5.10.0/BePC-haiku/CORE/proto.h:211: parse error
before `*'
Nothing obvious wrong here. Run the above g++ line with "-E" instead of "-c"
and a different output file and check what this line is preprocessed to.
In file included from
/boot/common/lib/perl5/5.10.0/BePC-haiku/CORE/perl.h:4725,
from
/BeStuff/Perl_Haiku_Kits/working/Haiku-ApplicationKit/ApplicationKit.xs:5:
/boot/common/lib/perl5/5.10.0/BePC-haiku/CORE/intrpvar.h:85: syntax
error before `;'
/boot/common/lib/perl5/5.10.0/BePC-haiku/CORE/intrpvar.h:86: syntax
error before `;'
Same here.
These last several errors went away when I added haikuish.h.
CU, Ingo
The extension now compiles. Thanks for the help.
Other related posts:
