Re: xml error building on older NetBSD box

[Fred Kiefer]

On 20.03.2012 21:47, Riccardo Mottola wrote:
> Hi,
>
> Making all for tool autogsdoc...
> gcc -rdynamic -Wl,-R/usr/pkg/lib -L/usr/pkg/lib -Wl,-R/usr/X11R6/lib
> -L/usr/X11R6/lib -pthread -fgnu-runtime -o obj/autogsdoc \
> ./obj/autogsdoc.obj/autogsdoc.m.o ./obj/autogsdoc.obj/AGSParser.m.o
> ./obj/autogsdoc.obj/AGSOutput.m.o ./obj/autogsdoc.obj/AGSIndex.m.o
> ./obj/autogsdoc.obj/AGSHtml.m.o \
> -L../Source/./obj -L/home/multix/GNUstep/Library/Libraries
> -L/Local/Library/Libraries -L/System/Library/Libraries
> -Wl,-R/usr/pkg/lib -L/usr/pkg/lib -L/System/Library/Libraries
> -L/Local/Library/Libraries -L/Local/Library/Libraries -lgnustep-base
> -lpthread -lobjc -Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lxml2 -lz -lm
> -lcallback -lavcall -lrt -lpthread -lz -lm
> ../Source/./obj/libgnustep-base.so: undefined reference to
> `xmlSaveToBuffer'
> ../Source/./obj/libgnustep-base.so: undefined reference to
> `xmlDOMWrapAdoptNode'
>
>
> I wonder if this is because the installed xml library (2.7.8) is too old
> or if there is some path / linker flag option. But why do I get an error
> while linking and not during compilation?
>
> The xml manual does not seem to specify with which version a certain
> function became available
> http://xmlsoft.org/html/libxml-xmlsave.html
>
> I'm going to try to compile with --disable-xml

libxml2 2.7.8 is the most current version of this library. I think in 
your specific case the problem is that the version of the library you 
have installed doesn't fit the one you have the development tools for. 
The annoying thing here is that not only the version number of the 
library is important, there are also features that could be left out. If 
who ever compiled that library disabled LIBXML_OUTPUT_ENABLED then you 
wont have all these features in your library, but the header files could 
still export this functions when xmlversion.h was not generated for this 
specific setup.

The only thing we can do here is replace the compile time check for the 
library version with a configure check and I really hate to do this. 
Better complain with your package provider about the mismatch.