Re: sys-apps/groff-1.23.0: explicitly disable compatibility wrappers

[Fabian Groffen]

Hi,

On Illumnos, with 1.23.0 default configure, if I do this:

% bzcat /gentoo/prefix64/usr/share/man/man3p/snprintf.3p.bz2 | ( cd 
/gentoo/prefix64/usr/share/man && /gentoo/prefix64/usr/libexec/man-db/zsoelim ) 
| ( cd /gentoo/prefix64/usr/share/man && preconv -e UTF-8 ) | ( cd 
/gentoo/prefix64/usr/share/man && tbl ) | ( cd /gentoo/prefix64/usr/share/man 
&& neqn -Tutf8 ) | ( cd /gentoo/prefix64/usr/share/man && nroff -mandoc -c 
-rLL=78n -rLT=78n -Tutf8 )
troff:/gentoo/prefix64/usr/lib/groff/site-tmac/an.tmac:1: fatal error: input 
stack limit exceeded (probable infinite loop)
grotty:<standard input>:(<standard input>):10: fatal error: 'V' command invalid 
before first 'p' command

(/gentoo/prefix64 is my "prefix", an offset everything is installed into)

If I add --without-compatibility-wrappers:

SNPRINTF(3P)               POSIX Programmer’s Manual              SNPRINTF(3P)

PROLOG
       This  manual  page is part of the POSIX Programmer’s Manual.  The Linux
       implementation of this interface may differ (consult the  corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.

NAME
...

In this case /gentoo/prefix64/usr/lib/groff/site-tmac/an.tmac is not
present.  This makes everything work fine, including manpages from the
host.

The file, when it is created, contains:

.do mso an.tmac
.cp 1
.so /usr/share/lib/tmac/an

The file it points to comes from Illumnos.  I can send its contents
off-list if necessary.

Thanks,
Fabian

On 09-12-2023 02:08:29 -0600, G. Branden Robinson wrote:
> Hi Fabian,
> 
> I saw the following in a commit[1] of yours.
> 
> "On Prefix systems, compatibility wrappers are generated because the
> default action is "auto".  These wrappers, however, do not function
> well on certain systems (Illumnos for instance), but from tests it
> appears they are not necessary either, so just disable them
> unconditionally."
> 
> Can you elaborate on this?  What is the failure mode?  When preparing
> the groff 1.23.0, I don't recall that we had anyone testing its
> portability to Illumos.
> 
> Perhaps we can get that working better for the next release.
> 
> Regards,
> Branden
> 
> [1] 
> https://gitweb.gentoo.org/repo/gentoo.git/commit/sys-apps/groff?id=552ad970da3fe2492239f88e84bedec2dc666478



-- 
Fabian Groffen
Gentoo on a different level

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