[Bug 199736] perl C compiler Can't locate object method "IVX" via package "B::NV"

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Sat Jul 22 00:44:56 UTC 2006

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Summary: perl C compiler Can't locate object method "IVX" via package "B::NV"


jvdias at redhat.com changed:

           What    |Removed                     |Added
             Status|NEW                         |MODIFIED

------- Additional Comments From jvdias at redhat.com  2006-07-21 20:35 EST -------
Yes, looking at /usr/lib/perl5/5.8.8/i386-linux-thread-multi/B/C.pm, 
B::NV::save appears to be mostly copied from B::IV::save, and on line
650, the $sv->IVX should be a $sv->NVX - with that change, your examples
compile correctly. Indeed, without that change, perlcc doesn't seem to be
able to handle floating point values at all.
You can fix this locally by applying this patch:
--- ./lib/B/C.pm        2006-01-13 09:47:39.000000000 -0500
+++ /usr/lib/perl5/5.8.8/i386-linux-thread-multi/B/C.pm 2006-07-21
20:25:39.000000000 -0400
@@ -650 +650 @@
-    $xpvnvsect->add(sprintf("0, 0, 0, %d, %s", $sv->IVX, $val));
+    $xpvnvsect->add(sprintf("0, 0, 0, %d, %s", $sv->NVX, $val));
or by changing byte 18708 of C.pm from 'I' to 'N'.

That said, as stated in todays perl5-porters mail on this subject:
>    Re: [perl #39903] perl C compiler Can't locate object method "IVX" via
package "B::NV"
>  From: "Joshua ben Jore" <twists at gmail.com>
>    To: perl5-porters at perl.org
>    CC: bugs-bitbucket at netlabs.develooper.com
>  Date: 2006-07-21 17:53
> B::C, B::CC, and perlcc are not being maintained. I can only
> guess as to why you tried to use this. Perhaps to get a single binary,
> perhaps to get faster execution or startup, perhaps to hide your source
> code. The first two goals can be achieved through tools like PAR and pperl.
> Josh

Yes, nothing in perlcc / B::C seems to have been maintained since 1998, so
it is unlikely the above will be the only issue you encounter when trying
to use perlcc for any real app. I suggest you seriously examine why you
need to use these tools; but I'll apply the above patch on the next release.

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