Bug#613674: Subject: xutils-dev: Can't get have_xmlto_text unless I add some content to the conftest.xml

[Gaetan Nadon <memsize@videotron.ca>]

On Wed, 2011-02-16 at 16:38 +0100, Julien Cristau wrote:
>     $ >conftest.xml
>     $ xmlto --skip-validation txt conftest.xml
>     /tmp/conftest.xml:1: parser error : Document is empty
>     
>     ^
>     /tmp/conftest.xml:1: parser error : Start tag expected, '<' not found
>     
>     ^
>     unable to parse /tmp/conftest.xml
>     w3m: Can't load /tmp/xmlto.897OOM/conftest.proc.
>     $ 

I get the same output but the return code is zero.
That is why the test passes in the macro.

Does Peter get the warning message:
> xmlto cannot generate text format, this format skipped
in the configure output? I don't.

I'd like to understand where the difference is.
> #!/bin/sh
>
> cat > conftest.xml << "EOF"
> EOF
> if test "yes" = yes; then
>   if xmlto --skip-validation txt conftest.xml ; then
>   have_xmlto_text=yes
>   echo $?
> else
>   { echo "$as_me:$LINENO: WARNING: xmlto cannot generate text format, this format skipped"
>     echo "$as_me: WARNING: xmlto cannot generate text format, this format skipped";}
> fi
> fi

The one thing that bugs me about the patch is that the version of docbook may eventually be 
no longer available and this macro must remain backward compatible for eternity.

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