GNU bug report logs - #52844
missing perl not recognized properly by configure

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Serge Belyshev <belyshev <at> depni.sinp.msu.ru>
Subject: bug#52844: closed (Re: bug#52844: missing perl not recognized
 properly by configure)
Date: Tue, 28 Dec 2021 10:09:03 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#52844: missing perl not recognized properly by configure

which was filed against the coreutils package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 52844 <at> debbugs.gnu.org.

-- 
52844: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=52844
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Serge Belyshev <belyshev <at> depni.sinp.msu.ru>
Cc: 52844-done <at> debbugs.gnu.org
Subject: Re: bug#52844: missing perl not recognized properly by configure
Date: Tue, 28 Dec 2021 02:08:22 -0800

[Message part 3 (text/plain, inline)]

On 12/27/21 23:07, Serge Belyshev wrote:

> -case $PERL in *"/missing "*) cu_have_perl=no;; esac
> +case $PERL in */missing*) cu_have_perl=no;; esac

Thanks for the bug report and suggested fix. On the whole I think it'd 
be better to address the nearby FIXME instead, so I did that by 
installing this into Gnulib:

https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=8220e0f0b5f46ff61e1d19f8a1614508fa162abd

and the attached into Coreutils. Please give it a try. In the meantime 
I'll assume this will fix the bug for you and so am boldly closing the 
bug report; if that's wrong we can reopen it.

[0001-build-update-gnulib-submodule-to-latest.patch (text/x-patch, attachment)]

[0002-build-be-more-careful-about-Perl.patch (text/x-patch, attachment)]

[Message part 6 (message/rfc822, inline)]

From: Serge Belyshev <belyshev <at> depni.sinp.msu.ru>
To: bug-coreutils <at> gnu.org
Subject: missing perl not recognized properly by configure
Date: Tue, 28 Dec 2021 10:07:51 +0300

On my systems without perl,  PERL is set to something like

  ${SHELL} '/usr/src/coreutils-9.0/build-aux/missing'  perl

which causes condition at line 70 in configure.ac to fail, resulting in
incorrect detection of perl and subsequent build failure. Suggested fix:

diff --git a/configure.ac b/configure.ac
index 9b8ea0dde..f6a7a6917 100644
--- a/configure.ac
+++ b/configure.ac
@@ -67,7 +67,7 @@ coreutils_MACROS
 # FIXME: this is suboptimal.  Ideally, we would be able to call gl_PERL
 # with an ACTION-IF-NOT-FOUND argument ...
 cu_have_perl=yes
-case $PERL in *"/missing "*) cu_have_perl=no;; esac
+case $PERL in */missing*) cu_have_perl=no;; esac
 AM_CONDITIONAL([HAVE_PERL], [test $cu_have_perl = yes])
 
 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])

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