bug#74453: closed (running make failed when perl is installed in the very long path)

[GNU bug Tracking System]

Your message dated Sat, 23 Nov 2024 18:58:28 -0700
with message-id <202411240158.4AO1wS8o362868@freefriends.org>
and subject line Re: bug#74453: running make failed when perl is installed in 
the very long path
has caused the debbugs.gnu.org bug report #74453,
regarding running make failed when perl is installed in the very long path
to be marked as done.

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-- 
74453: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=74453
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--- Begin Message --- Subject: running make failed when perl is installed in the very long path Date: Thu, 21 Nov 2024 02:56:29 +0000

Hi,  Dear Maintainers

I met an  issue when try to compile automake with the perl installed in a very long path which larger then max length of shebang ,  here is the reproduce steps

1. git clone git@github.com:autotools-mirror/automake.git; cd automake
2. ./bootstrap
3. ./configure
4. make
   Failed with error:
   ...
   GEN      doc/aclocal-1.17.1
   help2man: can't get `--help' info from bin/aclocal
   Try `--no-discard-stderr' if option outputs to stderr
   make: *** [Makefile:3818: doc/aclocal-1.17.1] Error 2

The failure is caused by the long path of the perl in aclocal.in,  the shebang  is cutted.  Could we change it like following diff?  

diff --git a/bin/aclocal.in b/bin/aclocal.in

index 4d01f3a4d..73d5ee47f 100644

--- a/bin/aclocal.in

+++ b/bin/aclocal.in

@@ -1,4 +1,4 @@

-#!@PERL@

+#!/usr/bin/env perl

 # aclocal - create aclocal.m4 by scanning configure.ac      -*- perl -*-

 # @configure_input@

 # Copyright (C) 1996-2024 Free Software Foundation, Inc.

diff --git a/bin/automake.in b/bin/automake.in

index 479125505..55985ea34 100644

--- a/bin/automake.in

+++ b/bin/automake.in

@@ -1,4 +1,4 @@

-#!@PERL@

+#!/usr/bin/env perl

 # automake - create Makefile.in from Makefile.am            -*- perl -*-

 # @configure_input@

 # Copyright (C) 1994-2024 Free Software Foundation, Inc.

Thank you,

Changqing

--- End Message ---

> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#74453: running make failed when perl is installed in the very long path
>
>
>
>
> Date: 
>
> Sat, 23 Nov 2024 18:58:28 -0700
>
>
>
>
>     >    ./configure PERL='/usr/bin/env perl'
>     >
>     > and it will substitute that into the scripts for you, but the configure
>     > script in Automake 1.17 exits with a fatal error if it determines that
>     > $PERL contains spaces.  We should probably make this non fatal since the
>     > check is clearly too broad.
>
> I changed this to a warning. Thanks. -k
>
> -----------------------------------------------------------------------------
> configure: make perl path with whitespace a warning, not error.
>
> For https://bugs.gnu.org/74453.
> See also https://bugs.gnu.org/62896.
>
> * configure.ac (PERL): use AC_MSG_WARN.
> diff --git a/configure.ac b/configure.ac
> index e4c7a126c..fb2b37076 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -73,9 +73,11 @@ case $PERL in
>     AC_MSG_ERROR([perl not found])
>     ;;
>   *' '* | *'    '*)
> -  AC_MSG_ERROR([The path to your Perl contains spaces or tabs.
> -This would cause build failures later or unusable programs.
> -Please use a path without spaces and try again.])
> +  AC_MSG_WARN([The path to your Perl contains spaces or tabs.
> +This will likely cause build failures later or unusable programs.
> +Unless you're specifying a full string for a #! line,
> +as in "/usr/bin/env perl",
> +please use a path without spaces and try again.])
>    ;;
>  esac
>
>
>
> --- End Message ---