On 2023-05-06 19:15 +0200, Sven Joachim wrote:

> Source: ncurses
> Version: 6.4-3
> Severity: important
> Tags: ftbfs
>
> On at least three architectures (hurd-i386, powerpc and x32) ncurses
> FTBFS with the following error:
>
> ,----
> | dh_autoreconf autoreconf-dickey -- -f -i
> | aclocal: warning: autoconf input should be named 'configure.ac', not 
> 'configure.in'
> | configure.in:910: warning: macro 'AM_LANGINFO_CODESET' not found in library
> | configure.in:941: error: possibly undefined macro: AM_LANGINFO_CODESET
> | mv: cannot move '/tmp/aruX6IKF/ahKAGeTw/config.hin' to 
> 'include/ncurses_cfg.hin': No such file or directory
> | touch: cannot touch 'include/stamp-h.in': No such file or directory
> | dh_autoreconf: error: autoreconf-dickey -f -i returned exit code 1
> `----
>
> Compare with a successful build on amd64:
>
> ,----
> | dh_autoreconf autoreconf-dickey -- -f -i
> | aclocal: warning: autoconf input should be named 'configure.ac', not 
> 'configure.in'
> | configure.in:910: warning: macro 'AM_LANGINFO_CODESET' not found in library
> | configure.in:941: error: possibly undefined macro: AM_LANGINFO_CODESET
> | mv: cannot move '/tmp/ardz33hA/ahzccjnH/config.hin' to 
> 'include/ncurses_cfg.hin': No such file or directory
> | touch: cannot touch 'include/stamp-h.in': No such file or directory
> | touch config.guess-stamp
> `----
>
> This raises at least two questions:
>
> - Why does dh_autoreconf error out on some architectures, but not on
>   others?
>
> - Why is AM_LANGINFO_CODESET not found, despite being defined in
>   aclocal.m4?
>
> Needs to be investigated, at the moment I have no clue. :-(

With the -v option, autoreconf-dickey gives some useful hints:

,----
| autoreconf-dickey -f -i -v
| autoreconf-dickey: using autoconf 2.52.20230114: /usr/bin//autoconf-dickey
| autoreconf-dickey: using autoheader 2.52.20230114: /usr/bin//autoheader-dickey
| autoreconf-dickey: using automake 1.16.5: automake
| autoreconf-dickey: using aclocal 1.16.5: aclocal
| autoreconf-dickey: running aclocal --verbose --output=./aclocal.m4 in 
.pc/fix-configure-root-args-option.diff
| aclocal: warning: autoconf input should be named 'configure.ac', not 
'configure.in'
| aclocal: found macro AC_PATH_XTRA in configure.in: 45
`----

So autoreconf-dickey picks up the backup of configure.in below the .pc/
directory and runs aclocal.  As there is no aclocal.m4 in that
directory, the above warning and error about AM_LANGINFO_CODESET ensue,
answering the second question.  That still leaves the first one open,
though.

Sven

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