Bug#902306: FTBFS: xml2-config is gone from libxml2-dev from version 2.9.7+dfsg-1

[Gerardo Esteban Malazdrewicz]

Package: libxml-libxml-perl
Version: 2.0132+dfsg-1+b0.01
Severity: grave
Tags: patch upstream

When running debian/rules build:

---------------------------------------------------------------------
gerardo at alienware:~/apt-src/libxml-libxml-perl-2.0132+dfsg$ ./debian/rules
build
dh build
   dh_update_autotools_config
   dh_autoreconf
   debian/rules override_dh_auto_configure
make[1]: se entra en el directorio '/home/gerardo/apt-src/libxml-libxml-
perl-2.0132+dfsg'
SKIP_SAX_INSTALL=1 dh_auto_configure
        perl -I. Makefile.PL INSTALLDIRS=vendor "OPTIMIZE=-g -O2 -fdebug-
prefix-map=/home/gerardo/apt-src/libxml-libxml-perl-2.0132+dfsg=. -fstack-
protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2" "LD=x86_64-linux-gnu-gcc -g -O2 -fdebug-prefix-
map=/home/gerardo/apt-src/libxml-libxml-perl-2.0132+dfsg=. -fstack-protector-
strong -Wformat -Werror=format-security -Wl,-z,relro -Wl,-z,now"
enable native perl UTF8
running xml2-config...didn't manage to get libxml2 config, guessing
options:
  LIBS='-L/usr/local/lib -L/usr/lib -lxml2 -lm'
  INC='-I/usr/local/include -I/usr/include'
If this is wrong, Re-run as:
  $ /usr/bin/perl Makefile.PL LIBS='-L/path/to/lib' INC='-I/path/to/include'

Checking for ability to link against xml2...no
Checking for ability to link against libxml2...libxml2, zlib, and/or the Math
library (-lm) have not been found.
Try setting LIBS and INC values on the command line
Or get libxml2 from
  http://xmlsoft.org/
If you install via RPMs, make sure you also install the -devel
RPMs, as this is where the headers (.h files) are.

Also, you may try to run perl Makefile.PL with the DEBUG=1 parameter
to see the exact reason why the detection of libxml2 installation
failed or why Makefile.PL was not able to compile a test program.
---------------------------------------------------------------------

The guesses are wrong.

The alternative using pkg-config is available since at least wheezy, so the
attached patch would work in all recent Debian versions.


This patch will be needed until upstream switches to use pkg-config instead of
(now gone) xml2-config.

Thanks,
    Gerardo



-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.16.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=es_AR.UTF-8, LC_CTYPE=es_AR.UTF-8 (charmap=UTF-8), LANGUAGE=es_AR:es (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libxml-libxml-perl depends on:
ii  libc6                         2.27-3
ii  libxml-namespacesupport-perl  1.12-1
ii  libxml-sax-perl               1.00+dfsg-1+b0.01
ii  libxml2                       2.9.7+dfsg-1
ii  perl                          5.28.0~rc2-1
ii  perl-base [perlapi-5.28.0]    5.28.0~rc2-1
ii  zlib1g                        1:1.2.11.dfsg-1

libxml-libxml-perl recommends no packages.

libxml-libxml-perl suggests no packages.

-- no debconf information
-------------- next part --------------
diff -ruN libxml-libxml-perl-2.0132+dfsg/debian/rules libxml-libxml-perl-2.0132+dfsg.good/debian/rules
--- libxml-libxml-perl-2.0132+dfsg/debian/rules	2018-06-23 16:57:04.000000000 -0300
+++ libxml-libxml-perl-2.0132+dfsg.good/debian/rules	2018-06-24 15:38:12.931247836 -0300
@@ -10,7 +10,9 @@
 	dh $@
 
 override_dh_auto_configure:
-	SKIP_SAX_INSTALL=1 dh_auto_configure
+	SKIP_SAX_INSTALL=1 dh_auto_configure -- \
+                INC=$(shell pkg-config --cflags libxml-2.0) \
+                LIBS=$(shell pkg-config --libs libxml-2.0)
 
 override_dh_auto_test:
 	dh_auto_test -- TEST_FILES="$(TEST_FILES)"