Re: [PATCH] [KERNEL-DOC] kill warnings when building mandocs

[Borislav Petkov]

On Sun, Apr 15, 2007 at 09:10:50AM +0200, Borislav Petkov wrote:
> On Sat, Apr 14, 2007 at 09:13:41AM -0700, Randy Dunlap wrote:
> > On Fri, 13 Apr 2007 11:14:22 +0200 Borislav Petkov wrote:
> > 
> > > This patch shuts warnings of the sort:
> > > 
> > > make -C /mnt/samsung_200/sam/kernel/trees/21-rc6/build \
> > > 	KBUILD_SRC=/mnt/samsung_200/sam/kernel/trees/21-rc6 \
> > > 	KBUILD_EXTMOD="" -f /mnt/samsung_200/sam/kernel/trees/21-rc6/Makefile mandocs
> > > make -f /mnt/samsung_200/sam/kernel/trees/21-rc6/scripts/Makefile.build obj=scripts/basic
> > > make -f /mnt/samsung_200/sam/kernel/trees/21-rc6/scripts/Makefile.build obj=Documentation/DocBook mandocs
> > >   SRCTREE=/mnt/samsung_200/sam/kernel/trees/21-rc6/ /mnt/samsung_200/sam/kernel/trees/21-rc6/build/scripts/basic/docproc doc /mnt/samsung_200/sam/kernel/trees/21-rc6/Documentation/DocBook/wanbook.tmpl >Documentation/DocBook/wanbook.xml
> > >   if grep -q refentry Documentation/DocBook/wanbook.xml; then xmlto man -m /mnt/samsung_200/sam/kernel/trees/21-rc6/Documentation/DocBook/stylesheet.xsl -o Documentation/DocBook/man Documentation/DocBook/wanbook.xml ; gzip -f Documentation/DocBook/man/*.9; fi
> > > Note: meta version: No productnumber or alternative     sppp_close
> > > Note: meta version: No refmiscinfo@class=version        sppp_close
> > > Note: Writing sppp_close.9
> > > Note: meta version: No productnumber or alternative     sppp_open
> > > Note: meta version: No refmiscinfo@class=version        sppp_open
> > > 
> > > by adding a RefMiscInfo xml tag in the form of the current kernel version to 
> > > the function, struct and enum definitions in files included by kernel-doc when 
> > > building 'mandocs'.  However, the version string appears truncated on the manpage
> > > due to some constraints in the xml DTD for the man header, I believe, for the
> > > troff output is truncated too.
> > 
> > Hi Borislav,
> > 
> > I cannot reproduce this error (either, a la the tex error).
> > Any hints about how I could do so?
> 
> Hm, this is strange. IIRC, the refmiscinfo version tag is imposed by the docbook
> xsl stylesheets for manpages, see
> http://www.oasis-open.org/archives/docbook-apps/200508/msg00111.html and
> especially the 'man'-section, subsection 'extra2 field.' According to it, 
> the stylesheets check several different locations for version info to be put in
> the left footer position in the manpage, and if none is found, they simply state
> that there's no version info, so this is not an error message but simply a
> notification which, if nothing else, annoys while building the mandocs.
> 
> The URL cites the changelog of docbook-xsl 1.69.1 and this is also the
> version in SLED 10 you're using so you should be getting this, too. I'll
> try to dig deeper into this. The relevant packs I use are docbook-xsl:
> 1.72.0.dfsg.1-1, xmlto: 0.0.18-5.1 on debian unstable. 

Hi Randi,

I'm pretty sure the reason you cannot reproduce this warning is the line 

<xsl:param name="refentry.version.suppress">1</xsl:param>

which can be found in param.xsl, it being a part of the docbook-xsl
distribution. The parameter's name is self-explanatory and a '1' suppresses
the version generation. I was able to get this error because in the
debian docbook-xsl package this param value is set to 0 by default.

This means, some users will get this warning and some will not, depending on the
setting in the param.xsl file. What is the way to go here wrt to a solution
dealing with all cases:

1. patch the kernel-doc?
2. issue an info so that the user can suppress the annoying warning by
themselves?
3. ...?

-- 
Regards/Gruß,
    Boris.
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