bug#67477: closed (Automake warns that $(?D) is a non-POSIX variable name)

[GNU bug Tracking System]

Your message dated Mon, 27 Nov 2023 15:47:31 -0700
with message-id <202311272247.3ARMlVNr013135@freefriends.org>
and subject line Re: bug#67477: Automake warns that $(?D) is a non-POSIX 
variable name
has caused the debbugs.gnu.org bug report #67477,
regarding Automake warns that $(?D) is a non-POSIX variable name
to be marked as done.

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-- 
67477: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=67477
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> --- Begin Message ---
>
>
>
> Subject: 
>
> Automake warns that $(?D) is a non-POSIX variable name
>
>
>
>
> Date: 
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> Sun, 26 Nov 2023 21:42:52 -0800
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>
>
>
> User-agent: 
>
> Mozilla Thunderbird
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>
>
>
> POSIX Make allows the syntax $(@D) and $(@F) to be used to retrieve the
> directory and filename parts of the $@ internal macro. It also allows
> this syntax for the other four internal macros ($%, $?, $<, and $*).
>
> Automake seems to be aware of $(@D) and $(@F), but not the others.
>
> Here is an example:
>
>       $ nl configure.ac
>            1  AC_INIT([example], [1])
>            2  AM_INIT_AUTOMAKE([-Wall foreign])
>            3  AC_CONFIG_FILES([Makefile])
>            4  AC_OUTPUT
>
>       $ nl Makefile.am
>            1  foo.a(foo.o): foo.o
>            2          echo $(@D) # no warning
>            3          echo $(@F) # no warning
>            4          echo $(%D) # warning
>            5          echo $(%F) # warning
>            6          echo $(?D) # warning
>            7          echo $(?F) # warning
>            8          echo $(<D) # warning
>            9          echo $(<F) # warning
>           10          echo $(*D) # warning
>           11          echo $(*F) # warning
>
>       $ autoreconf -i
>       Makefile.am:4: warning: %D: non-POSIX variable name
>       Makefile.am:5: warning: %F: non-POSIX variable name
>       Makefile.am:6: warning: ?D: non-POSIX variable name
>       Makefile.am:7: warning: ?F: non-POSIX variable name
>       Makefile.am:8: warning: <D: non-POSIX variable name
>       Makefile.am:9: warning: <F: non-POSIX variable name
>       Makefile.am:10: warning: *D: non-POSIX variable name
>       Makefile.am:11: warning: *F: non-POSIX variable name
>
>       $ autoconf --version | head -n 1
>       autoconf (GNU Autoconf) 2.71
>
>       $ automake --version | head -n 1
>       automake (GNU automake) 1.16.5
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#67477: Automake warns that $(?D) is a non-POSIX variable name
>
>
>
>
> Date: 
>
> Mon, 27 Nov 2023 15:47:31 -0700
>
>
>
>
> Hi Quinn,
>
> > Automake seems to be aware of $(@D) and $(@F), but not the others.
>
> Thanks for the report. This was fixed not long ago, and will be in the
> next release. The prior report, for the record:
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=9587
>
> All the best,
> Karl
>
>
> --- End Message ---