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Re: [Libguestfs] [hivex] OS X, Fedora 17: iconv autotool inconsistency



On Mon, Jun 25, 2012 at 07:42:56PM -0400, Alexander Nelson wrote:
> Hello all,
> 
> I've been testing hivexml in OS X, and came across an inconsistency in
> building.
> 
> Some while back, I hit a snag with iconv in OS X, where basically this
> would happen when a hive of any sophistication (greater than
> hivex/images/small) was processed:
> 
> >$ xml/hivexml images/large >test.xml
> >dyld: lazy symbol binding failed: Symbol not found: _iconv_open
> >  Referenced from: /[snip]/hivex/lib/.libs/libhivex.0.dylib
> >  Expected in: flat namespace
> >
> >dyld: Symbol not found: _iconv_open
> >  Referenced from: /[snip]/hivex/lib/.libs/libhivex.0.dylib
> >  Expected in: flat namespace
> >
> >Trace/BPT trap
> 
> This is pretty easily resolved in OS X by adding $(LTLIBICONV) to
> libhivex_la_LDFLAGS in lib/Makefile.am.
> 
> Unfortunately, bringing that same change to Fedora (17) raises this error
> in `make`:
> >/bin/ld: cannot find -liconv
> >collect2: error: ld returned 1 exit status
> 
> LIBICONV and LTLIBICONV are both set to '-liconv' in config.log; but there
> is no check for how to link in config.log. That is, these lines do not
> appear (in part or in whole) in Fedora's config.log:
> 
> >checking for iconv... yes
> >checking for working iconv... yes
> >checking how to link with libiconv... -liconv
> 
> The Fedora negative results came from the latest master, 1.3.6.  The OS X
> tests were on an effectively an older version of the code [1], but I think
> this is an autotools issue in common to both version.
> 
> So...any ideas?  I thought this linking error was the kind of thing the
> autotools were supposed to catch.

I've no idea.  I only know that iconv functions are included directly
in glibc.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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