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Re: Couple of gtk-doc glitches

From: Simon Josefsson
Subject: Re: Couple of gtk-doc glitches
Date: Tue, 23 Nov 2021 21:34:17 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux)

Roman Bogorodskiy <> writes:

> Hi,
> I was updating a FreeBSD port of libtasn1 to 4.18.0 and noticed the
> build fails with:

Hi Roman.  Thanks for the report!

> 1. Force using GNU make instead of a BSD make

BSD make should work, or it is a bug.  I wouldn't blame you for going
with the simple solution, though, but we should try to get this fixed...

> 2. Patch it with:
>  install  -m 0644 ./html/libtasn1.devhelp2
>  install  -m 0644 ./html/right-insensitive.png
> --- doc/reference/      2021-11-13 05:59:58 UTC
> +++ doc/reference/
> @@ -1840,7 +1840,7 @@ html-build.stamp: sgml.stamp $(DOC_MAIN_SGML_FILE) $(c
>           test -f $(abs_builddir)/$$file && cp $(abs_builddir)/$$file 
> $(abs_builddir)/html; \
>           test -f $$file && cp $$file $(abs_builddir)/html; \
>         done;
> -       $(GTK_DOC_V_XREF)gtkdoc-fixxref --module=$(DOC_MODULE) 
> --module-dir=html --html-dir=$(HTML_DIR) $(FIXXREF_OPTIONS)
> +       cd "$(abs_srcdir)" && $(GTK_DOC_V_XREF)gtkdoc-fixxref 
> --module=$(DOC_MODULE) --module-dir=html --html-dir=$(HTML_DIR) 
>         $(AM_V_at)touch html-build.stamp
>  pdf-build.stamp: sgml.stamp $(DOC_MAIN_SGML_FILE) $(content_files) 
> $(expand_content_files)
> Apparently, gtkdoc-fixxref needs to be executed from $(abs_srcdir),
> which is the case when building with GNU make, but with BSD make working
> directory is $(abs_srcdir)/html.

Interesting -- why is CWD in html/ here?  The previous command in the
makefile does 'cd html && ...' in the beginning, but that shouldn't
affect the CWD for the next command, should it?

> Patching is when building from a dist tarball, but a more
> general fix probably should go into gtk-doc.make, and here comes the
> second issue.

Thanks for working your way through this maze...

> When I try to build it from the git repo, I get:
>   DOC   Introspecting gobjects
>   DOC   Building XML
>   DOC   Building XML
> ../../lib/includes/libtasn1.h:24: warning: Section libtasn1 is not defined in 
> the libtasn1-sections.txt file.
> ../../lib/includes/libtasn1.h:24: warning: Section libtasn1 is not defined in 
> the libtasn1-sections.txt file.
> ./libtasn1-unused.txt:1: warning: 95 unused declarations. They should be 
> added to libtasn1-sections.txt in the appropriate place.
>   DOC   Building HTML
> warning: failed to load external entity "../xml/libtasn1.xml"
> ../libtasn1-docs.xml:34: element include: XInclude error : could not load 
> ../xml/libtasn1.xml, and no fallback was found
> gmake[3]: *** [Makefile:1824: html-build.stamp] Error 6
> Before that I can see that gtkdoc-scan is complaining about:
> ../../lib/includes/libtasn1.h:0: warning: partial declaration (struct) :   
> struct asn1_data_node_st
> However, I can see the same message when building from the dist tarball.
> Also, comparing the failing build from a git checkout and a successful
> build from the dist tarball, I can see that
> ./doc/reference/libtasn1-sections.txt is empty for the failing build,
> and the successful build has it populated.
> For the git checkout build I don't apply any patches and use GNU make.
> Any thoughts what's going on here?

I recall seeing this error too, and I think it was because of
objdir!=srcdir issues and it couldn't locate the libtasn1.h header file
properly for the scanning.  Just an idea.

Did you try git master?  I did some builddir!=srcdir fixes in git after
the 4.18.0 release since I probably ran into something similar that you

I'll try to reproduce this... having a BSD system in the CI/CD test
framework would really help iron out more of the GNU/Linux idioms that
tends to be used.


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