Bug#882978: error including xlocale.h with glibc 2.26

[Petr Cech]

Package: perl
Version: 5.26.1-2
Severity: normal

Hi,
after upgrading to libc6 2.26 from experimental, I started seeing following error messages from cron/sa-compile

                             |In file included from body_0.xs:2:0:
                             |/usr/lib/x86_64-linux-gnu/perl/5.26/CORE/perl.h:738:13: fatal error: xlocale.h: No such file or directory
                             | #   include <xlocale.h>
                             |             ^~~~~~~~~~~
                             |compilation terminated.
                             |make: *** [body_0.o] Error 1
                             |command 'make >>/tmp/.spamassassin19158ehbB3utmp/log' failed: exit 2

As stated in the relese notes of glibc, the header file xlocale.h was removed with the 2.26 release.

I saw, that the inclusion of this header is protected by a I_XLOCALE define, so it should be possible to reconfigure perl to not need/use this
header with older glibc versions, which do still provide this header.

regards

Petr

-- System Information:
Debian Release: buster/sid
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.14.0-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages perl depends on:
ii  dpkg               1.19.0.4
ii  libperl5.26        5.26.1-2
ii  perl-base          5.26.1-2
ii  perl-modules-5.26  5.26.1-2

ii  libc6              2.26-0experimental1


Versions of packages perl recommends:
ii  netbase  5.4

Versions of packages perl suggests:
ii  libterm-readline-gnu-perl   1.35-2
ii  libterm-readline-perl-perl  1.0303-1
ii  make                        4.1-9.1
ii  perl-doc                    5.26.1-2

-- no debconf information