9 Dec
2011
9 Dec
'11
12:17 a.m.
Something
changed between 6.5.3-3 and 6.5.9-6.
Something in 6.5.9-6
does not build correctly.
The library
seems to have a missing NEEDED for the library
which
provides the functions (which appears to be
libMagickWand.so).
You can read the dynamic library part of an ELF library by
the command
$ readelf -d <library>.so
Any ideas what? Something in the config options?
Compiler flags? My
> searching the web revealed nothing. I have no 'undefined reference' error with
Slackware64
13.37 and its
provided ImageMagick 6.6.6_10. But strangely
libMagickCore.so doesn't
specify libMagickWand.so in it's NEEDED list (not even in
the ldd
result); seems that the 6.6.6_10 libMagickCore.so doesn't
use
libMagickWand.so at all.
Last night I stumbled across a possible solution.
As I mentioned, in my 13.1 build environment I rebuilt 6.5.3-3, which came with 13.0.
After rebuilding there were no undefined reference errors with libMagickCore.so. After I
posted my sentiment that something had changed between that version and 6.5.9-6, I started
fiddling. I changed the 6.5.9-6 build script from --without-modules to --with-modules=yes.
Merely deleting the --without-modules option did not work.
Lo and behold the undefined reference errors disappeared.
Perhaps between 6.5.3-3 and 6.6.6_10 there was a glitch in the way the package built to
cause such errors. That you don't seem the errors with a newer version could indicate
the developers fixed the problem. Just speculating, of course.
Today I plan to try again building koffice with the rebuilt ImageMagick package.
Possibly then this one build option in ImageMagick could explain why nobody else who built
koffice has seen those errors. Perhaps in their distro ImageMagick is built differently.
By the way, when building ImageMagick for other people, be sure to build in a non Nvidia
environment because the ImageMagick sources automatically build internal dependencies on
OpenCL. I could not find any configure option to prevent that.
From where do you find this NEEDED list?
Darrell