Re: [bug #45759] Can't find Texinfo::ModulePath

[Patrice Dumas]

On Sat, Aug 15, 2015 at 04:51:23PM +0200, Patrice Dumas wrote:
> On Fri, Aug 14, 2015 at 10:12:07PM +0000, Karl Berry wrote:
> >     I'm not sure what the Makefile.PL is doing there; 
> > 
> > As I understood it, it was for the sake of making a texi2any Perl module
> > that could be uploaded to CPAN and installed in the normal CPAN way.  (I
> > don't believe that has actually happened yet, but that was the theory.)
> 
> But with the XS module, it is probable that it does not work anymore,
> probably some changes are needed for XS packages.  I'll check if it
> still works without change.

I checked and unsurprisingly it didn't work.  I tried to build the .xs
file from the tp/Makefile.PL, but I did not succeed, and information in
internet and in the MakeMaker documentation is scarce and nobody seems
to build .xs files from subdirectories.  I had a bit more success
building recursively XSParagraph after updating the XSParagraph
Makefile.PL.  Not complete success, though.

I then tried to build XSParagraph as a standalone module first, from
within tp/Texinfo/Convert/XSParagraph, with the idea that if this works,
building it as part of tp/Makefile.PL could be possible.  The gnulib
files do not build, but I think that they are not mandatory and that we
probably cannot rely on gnulib for a standalone module.  ldd on the .so
file do not show anything suspect.  The undefined symbols seem to be
either from libc or perl, which I guess are loaded somehow when using xs
files.


I modified XSParagraph.pm to load the .so file, but it didn't work fully:

Running Mkbootstrap for XSParagraph ()
chmod 644 XSParagraph.bs
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM"
"-MTest::Harness" "-e" "undef *Test::Harness::Switches; test_harness(0,
'blib/lib', 'blib/arch')" t/*.t
t/XSParagraph.t .. 1/1 
#   Failed test 'use XSParagraph;'
#   at t/XSParagraph.t line 12.
#     Tried to use 'XSParagraph'.
#     Error:  Invalid version format (non-numeric data) at
#     
/home/dumas/src/texinfo/tp/Texinfo/Convert/XSParagraph/blib/lib/XSParagraph.pm
#     line 195.
# BEGIN failed--compilation aborted at
# /home/dumas/src/texinfo/tp/Texinfo/Convert/XSParagraph/blib/lib/XSParagraph.pm
# line 215.
# Compilation failed in require at t/XSParagraph.t line 12.
# BEGIN failed--compilation aborted at t/XSParagraph.t line 12.
Perl: here 1
Undefined subroutine &XSParagraph::set_state called at t/XSParagraph.t
line 23.
# Looks like you failed 1 test of 1.
# Looks like your test exited with 255 just after 1.
t/XSParagraph.t .. Dubious, test returned 255 (wstat 65280, 0xff00)
Failed 1/1 subtests 



I attach the preliminary patch I used to test.

To test, I do, starting with the Makefile generated by configure:
export TEXINFO_XS=module
make clean
perl Makefile.PL
make
make test

"perl Makefile.PL" overrides the Makefile created by configure, which
can be redone by 
./config.status



Is this a possibility to build a standalone module worth more investigation?

-- 
Pat

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