diff --git a/.gitignore b/.gitignore
index c22c93b..cddc3a5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@
 /Alien-Build-1.39.tar.gz
 /Alien-Build-1.41.tar.gz
 /Alien-Build-1.42.tar.gz
+/Alien-Build-1.43.tar.gz
diff --git a/Alien-Build-1.42-Remove-redundant-pkgconfig-implementations.patch b/Alien-Build-1.42-Remove-redundant-pkgconfig-implementations.patch
deleted file mode 100644
index f977b80..0000000
--- a/Alien-Build-1.42-Remove-redundant-pkgconfig-implementations.patch
+++ /dev/null
@@ -1,340 +0,0 @@
-From ac42c9893901afa59daa23361485f3131678f9ee Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
-Date: Fri, 8 Sep 2017 11:31:02 +0200
-Subject: [PATCH] Remove redundant pkgconfig implementations
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Only one implementation is required, we selected
-Alien::Build::Plugin::PkgConfig::LibPkgConf. This patch removes other
-ones to decrease number of dependencies.
-
-Signed-off-by: Petr Písař <ppisar@redhat.com>
----
- MANIFEST                                         |   4 -
- Makefile.PL                                      |   4 +-
- lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm    |  19 +--
- t/01_use.t                                       |   4 -
- t/alien_build_plugin_pkgconfig_negotiate.t       |   2 +-
- t/alien_build_plugin_pkgconfig_negotiate__pick.t | 153 ++---------------------
- 6 files changed, 11 insertions(+), 175 deletions(-)
-
-diff --git a/MANIFEST b/MANIFEST
-index 559f19f..0e0a343 100644
---- a/MANIFEST
-+++ b/MANIFEST
-@@ -166,11 +166,9 @@ lib/Alien/Build/Plugin/Fetch/LocalDir.pm
- lib/Alien/Build/Plugin/Fetch/NetFTP.pm
- lib/Alien/Build/Plugin/Fetch/Wget.pm
- lib/Alien/Build/Plugin/Gather/IsolateDynamic.pm
--lib/Alien/Build/Plugin/PkgConfig/CommandLine.pm
- lib/Alien/Build/Plugin/PkgConfig/LibPkgConf.pm
- lib/Alien/Build/Plugin/PkgConfig/MakeStatic.pm
- lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm
--lib/Alien/Build/Plugin/PkgConfig/PP.pm
- lib/Alien/Build/Plugin/Prefer.pod
- lib/Alien/Build/Plugin/Prefer/BadVersion.pm
- lib/Alien/Build/Plugin/Prefer/SortVersions.pm
-@@ -239,12 +237,10 @@ t/alien_build_plugin_fetch_netftp.t
- t/alien_build_plugin_fetch_wget.t
- t/alien_build_plugin_gather_isolatedynamic.t
- t/alien_build_plugin_meta.t
--t/alien_build_plugin_pkgconfig_commandline.t
- t/alien_build_plugin_pkgconfig_libpkgconf.t
- t/alien_build_plugin_pkgconfig_makestatic.t
- t/alien_build_plugin_pkgconfig_negotiate.t
- t/alien_build_plugin_pkgconfig_negotiate__pick.t
--t/alien_build_plugin_pkgconfig_pp.t
- t/alien_build_plugin_prefer_badversion.t
- t/alien_build_plugin_prefer_sortversions.t
- t/alien_build_plugin_probe_cbuilder.t
-diff --git a/Makefile.PL b/Makefile.PL
-index 2bd520b..bbfd7e8 100644
---- a/Makefile.PL
-+++ b/Makefile.PL
-@@ -74,11 +74,9 @@ my %WriteMakefileArgs = (
-     "lib/Alien/Build/Plugin/Fetch/NetFTP.pm"             => "\$(INST_LIB)/Alien/Build/Plugin/Fetch/NetFTP.pm",
-     "lib/Alien/Build/Plugin/Fetch/Wget.pm"               => "\$(INST_LIB)/Alien/Build/Plugin/Fetch/Wget.pm",
-     "lib/Alien/Build/Plugin/Gather/IsolateDynamic.pm"    => "\$(INST_LIB)/Alien/Build/Plugin/Gather/IsolateDynamic.pm",
--    "lib/Alien/Build/Plugin/PkgConfig/CommandLine.pm"    => "\$(INST_LIB)/Alien/Build/Plugin/PkgConfig/CommandLine.pm",
-     "lib/Alien/Build/Plugin/PkgConfig/LibPkgConf.pm"     => "\$(INST_LIB)/Alien/Build/Plugin/PkgConfig/LibPkgConf.pm",
-     "lib/Alien/Build/Plugin/PkgConfig/MakeStatic.pm"     => "\$(INST_LIB)/Alien/Build/Plugin/PkgConfig/MakeStatic.pm",
-     "lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm"      => "\$(INST_LIB)/Alien/Build/Plugin/PkgConfig/Negotiate.pm",
--    "lib/Alien/Build/Plugin/PkgConfig/PP.pm"             => "\$(INST_LIB)/Alien/Build/Plugin/PkgConfig/PP.pm",
-     "lib/Alien/Build/Plugin/Prefer.pod"                  => "\$(INST_LIB)/Alien/Build/Plugin/Prefer.pod",
-     "lib/Alien/Build/Plugin/Prefer/BadVersion.pm"        => "\$(INST_LIB)/Alien/Build/Plugin/Prefer/BadVersion.pm",
-     "lib/Alien/Build/Plugin/Prefer/SortVersions.pm"      => "\$(INST_LIB)/Alien/Build/Plugin/Prefer/SortVersions.pm",
-@@ -180,4 +178,4 @@ sub requires { goto &runtime_requires }
- sub runtime_requires {
-   my ( $module, $version_or_range ) = @_;
-   _add_prereq( PREREQ_PM => $module, $version_or_range );
--}
-\ No newline at end of file
-+}
-diff --git a/lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm b/lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm
-index 80929ec..e4dc274 100644
---- a/lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm
-+++ b/lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm
-@@ -3,9 +3,7 @@ package Alien::Build::Plugin::PkgConfig::Negotiate;
- use strict;
- use warnings;
- use Alien::Build::Plugin;
--use Alien::Build::Plugin::PkgConfig::PP;
- use Alien::Build::Plugin::PkgConfig::LibPkgConf;
--use Alien::Build::Plugin::PkgConfig::CommandLine;
- use Alien::Build::Util qw( _perl_config );
- use Carp ();
- 
-@@ -31,21 +29,6 @@ sub pick
-   {
-     return 'PkgConfig::LibPkgConf';
-   }
--  
--  if(Alien::Build::Plugin::PkgConfig::CommandLine->available)
--  {
--    # TODO: determine environment or flags necessary for using pkg-config
--    # on solaris 64 bit.
--    if(! (_perl_config('osname') eq 'solaris' && _perl_config('ptrsize') == 8))
--    {
--      return 'PkgConfig::CommandLine';
--    }
--  }
--  
--  if(Alien::Build::Plugin::PkgConfig::PP->available)
--  {
--    return 'PkgConfig::PP';
--  }
-   else
-   {
-     # this is a fata error.  because we check for a pkg-config implementation
-@@ -53,7 +36,7 @@ sub pick
-     # fallback on installing PkgConfig.pm as a prereq if nothing else is avail).
-     # we therefore expect at least one of these to work, if not, then the configuration
-     # of the system has shifted from underneath us.
--    Carp::croak("Could not find an appropriate pkg-config or pkgconf implementation, please install PkgConfig.pm, PkgConfig::LibPkgConf, pkg-config or pkgconf");
-+    Carp::croak("Could not find an appropriate pkg-config or pkgconf implementation, please install PkgConfig::LibPkgConf");
-   }
- }
- 
-diff --git a/t/01_use.t b/t/01_use.t
-index a8cff2e..cb8d9bd 100644
---- a/t/01_use.t
-+++ b/t/01_use.t
-@@ -40,11 +40,9 @@ require_ok 'Alien::Build::Plugin::Fetch::LocalDir';
- require_ok 'Alien::Build::Plugin::Fetch::NetFTP';
- require_ok 'Alien::Build::Plugin::Fetch::Wget';
- require_ok 'Alien::Build::Plugin::Gather::IsolateDynamic';
--require_ok 'Alien::Build::Plugin::PkgConfig::CommandLine';
- require_ok 'Alien::Build::Plugin::PkgConfig::LibPkgConf';
- require_ok 'Alien::Build::Plugin::PkgConfig::MakeStatic';
- require_ok 'Alien::Build::Plugin::PkgConfig::Negotiate';
--require_ok 'Alien::Build::Plugin::PkgConfig::PP';
- require_ok 'Alien::Build::Plugin::Prefer::BadVersion';
- require_ok 'Alien::Build::Plugin::Prefer::SortVersions';
- require_ok 'Alien::Build::Plugin::Probe::CBuilder';
-@@ -97,11 +95,9 @@ ok -f 't/alien_build_plugin_fetch_localdir.t',           'test for Alien::Build:
- ok -f 't/alien_build_plugin_fetch_netftp.t',                  'test for Alien::Build::Plugin::Fetch::NetFTP';
- ok -f 't/alien_build_plugin_fetch_wget.t',                    'test for Alien::Build::Plugin::Fetch::Wget';
- ok -f 't/alien_build_plugin_gather_isolatedynamic.t',         'test for Alien::Build::Plugin::Gather::IsolateDynamic';
--ok -f 't/alien_build_plugin_pkgconfig_commandline.t',         'test for Alien::Build::Plugin::PkgConfig::CommandLine';
- ok -f 't/alien_build_plugin_pkgconfig_libpkgconf.t',          'test for Alien::Build::Plugin::PkgConfig::LibPkgConf';
- ok -f 't/alien_build_plugin_pkgconfig_makestatic.t',          'test for Alien::Build::Plugin::PkgConfig::MakeStatic';
- ok -f 't/alien_build_plugin_pkgconfig_negotiate.t',           'test for Alien::Build::Plugin::PkgConfig::Negotiate';
--ok -f 't/alien_build_plugin_pkgconfig_pp.t',                  'test for Alien::Build::Plugin::PkgConfig::PP';
- ok -f 't/alien_build_plugin_prefer_badversion.t',             'test for Alien::Build::Plugin::Prefer::BadVersion';
- ok -f 't/alien_build_plugin_prefer_sortversions.t',           'test for Alien::Build::Plugin::Prefer::SortVersions';
- ok -f 't/alien_build_plugin_probe_cbuilder.t',                'test for Alien::Build::Plugin::Probe::CBuilder';
-diff --git a/t/alien_build_plugin_pkgconfig_negotiate.t b/t/alien_build_plugin_pkgconfig_negotiate.t
-index 1233b9a..9492ea1 100644
---- a/t/alien_build_plugin_pkgconfig_negotiate.t
-+++ b/t/alien_build_plugin_pkgconfig_negotiate.t
-@@ -16,7 +16,7 @@ subtest 'pick' => sub {
- 
- subtest 'override' => sub {
- 
--  foreach my $name (qw( PP LibPkgConf CommandLine ))
-+  foreach my $name (qw( LibPkgConf ))
-   {
-     local $ENV{ALIEN_BUILD_PKG_CONFIG} = "PkgConfig::$name";
-     subtest $ENV{ALIEN_BUILD_PKG_CONFIG} => sub {
-diff --git a/t/alien_build_plugin_pkgconfig_negotiate__pick.t b/t/alien_build_plugin_pkgconfig_negotiate__pick.t
-index 105c6b6..db886f8 100644
---- a/t/alien_build_plugin_pkgconfig_negotiate__pick.t
-+++ b/t/alien_build_plugin_pkgconfig_negotiate__pick.t
-@@ -25,9 +25,10 @@ subtest 'LibPkgConf' => sub {
-   
-       local $PkgConfig::LibPkgConf::VERSION = '0.01';
- 
--      isnt(
--        Alien::Build::Plugin::PkgConfig::Negotiate->pick,
--        'PkgConfig::LibPkgConf',
-+      eval { Alien::Build::Plugin::PkgConfig::Negotiate->pick };
-+      ok(
-+        $@,
-+        'PkgConfig::LibPkgConf "0.1" is too old',
-       );
- 
-     };
-@@ -40,9 +41,10 @@ subtest 'LibPkgConf' => sub {
-     # cannot be loaded for the rest of this .t file
-     note scalar capture_merged { Devel::Hide->import(qw( PkgConfig::LibPkgConf )) };
-   
--    isnt(
--      Alien::Build::Plugin::PkgConfig::Negotiate->pick,
--      'PkgConfig::LibPkgConf',
-+    eval { Alien::Build::Plugin::PkgConfig::Negotiate->pick };
-+    ok(
-+      $@,
-+      'Missing PkgConfig::LibPkgConf triggers an exception',
-     );
- 
-   };
-@@ -56,144 +58,5 @@ my $make_pkgconfig_libpkgconf_unavailable = Test2::Mock->new(
-   ],
- );
- 
--subtest 'CommandLine' => sub {
--
--  local $INC{'PkgConfig.pm'} = __FILE__;
--  local $PkgConfig::VERSION = '0.14026';
--
--  my %which;
--
--  my $mock = Test2::Mock->new(
--    class => 'File::Which',
--    override => [
--      which => sub {
--        my($prog) = @_;
--        if(defined $prog)
--        {
--          if($which{$prog})
--          {
--            note "which: $prog => $which{$prog}";
--            return $which{$prog};
--          }
--          else
--          {
--            note "which: $prog N/A";
--          }
--        }
--        else
--        {
--          note "which: undef";
--        }
--      },
--    ],
--  );
--  
--  my $mock2 = Test2::Mock->new(
--    class => 'Alien::Build::Plugin::PkgConfig::Negotiate',
--  );
--  
--  if($^O eq 'solaris') {
--    $mock2->override(
--      _perl_config => sub {
--        my($key) = @_;
--        if($key eq 'osname')
--        { return 'linux' }
--        else
--        { return $Config{$key} }
--      },
--    );
--  }
--
--  subtest 'no command line' => sub {
--
--    %which = ();
--
--    is(
--      Alien::Build::Plugin::PkgConfig::Negotiate->pick,
--      'PkgConfig::PP',
--    );
--  
--  };
--
--  subtest 'pkg-config' => sub {
--  
--    %which = ( 'pkg-config' => '/usr/bin/pkg-config' );
--  
--    is(
--      Alien::Build::Plugin::PkgConfig::Negotiate->pick,
--      'PkgConfig::CommandLine',
--    );
--
--  };
--
--  subtest 'pkgconf' => sub {
--  
--    %which = ( 'pkgconf' => '/usr/bin/pkgconf' );
--  
--    is(
--      Alien::Build::Plugin::PkgConfig::Negotiate->pick,
--      'PkgConfig::CommandLine',
--    );
--
--  };
--
--  subtest 'PKG_CONFIG' => sub {
--  
--    local $ENV{PKG_CONFIG} = 'foo-pkg-config';
--    %which = ( 'foo-pkg-config' => '/usr/bin/foo-pkg-config' );
--    
--    is(
--      Alien::Build::Plugin::PkgConfig::Negotiate->pick,
--      'PkgConfig::CommandLine',
--    );    
--  
--  };
--
--  subtest 'PP' => sub {
--
--    subtest '64 bit solaris' => sub {
--  
--      %which = ( 'pkg-config' => '/usr/bin/pkg-config' );
--
--      # From the old AB::MB days we prefer PkgConfig.pm
--      # for 64 bit solaris over the command line pkg-config
--      
--      my $mock2 = Test2::Mock->new(
--        class => 'Alien::Build::Plugin::PkgConfig::Negotiate',
--        override => [
--          _perl_config => sub {
--            my($key) = @_;
--            if($key eq 'ptrsize')
--            { return 8 }
--            elsif($key eq 'osname')
--            { return 'solaris' }
--            else
--            { return $Config{$key} }
--          },
--        ],
--      );
--      
--      is(
--        Alien::Build::Plugin::PkgConfig::Negotiate->pick,
--        'PkgConfig::PP',
--      );
--
--    };
--    
--    subtest 'PP is fallback' => sub {
--
--      %which = ();
--
--      is(
--        Alien::Build::Plugin::PkgConfig::Negotiate->pick,
--        'PkgConfig::PP',
--      );
--
--    };
--
--  };
--
--};
--
- done_testing;
- 
--- 
-2.14.3
-
diff --git a/Alien-Build-1.43-Remove-redundant-pkgconfig-implementations.patch b/Alien-Build-1.43-Remove-redundant-pkgconfig-implementations.patch
new file mode 100644
index 0000000..3368e53
--- /dev/null
+++ b/Alien-Build-1.43-Remove-redundant-pkgconfig-implementations.patch
@@ -0,0 +1,341 @@
+From f4102aafec479748c15e28c844f257595175ef38 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
+Date: Fri, 8 Sep 2017 11:31:02 +0200
+Subject: [PATCH] Remove redundant pkgconfig implementations
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Only one implementation is required, we selected
+Alien::Build::Plugin::PkgConfig::LibPkgConf. This patch removes other
+ones to decrease number of dependencies.
+
+Signed-off-by: Petr Písař <ppisar@redhat.com>
+---
+ MANIFEST                                         |   4 -
+ Makefile.PL                                      |   4 +-
+ lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm    |  20 +--
+ t/01_use.t                                       |   4 -
+ t/alien_build_plugin_pkgconfig_negotiate.t       |   2 +-
+ t/alien_build_plugin_pkgconfig_negotiate__pick.t | 153 ++---------------------
+ 6 files changed, 11 insertions(+), 176 deletions(-)
+
+diff --git a/MANIFEST b/MANIFEST
+index 359958f..11b9703 100644
+--- a/MANIFEST
++++ b/MANIFEST
+@@ -166,11 +166,9 @@ lib/Alien/Build/Plugin/Fetch/LocalDir.pm
+ lib/Alien/Build/Plugin/Fetch/NetFTP.pm
+ lib/Alien/Build/Plugin/Fetch/Wget.pm
+ lib/Alien/Build/Plugin/Gather/IsolateDynamic.pm
+-lib/Alien/Build/Plugin/PkgConfig/CommandLine.pm
+ lib/Alien/Build/Plugin/PkgConfig/LibPkgConf.pm
+ lib/Alien/Build/Plugin/PkgConfig/MakeStatic.pm
+ lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm
+-lib/Alien/Build/Plugin/PkgConfig/PP.pm
+ lib/Alien/Build/Plugin/Prefer.pod
+ lib/Alien/Build/Plugin/Prefer/BadVersion.pm
+ lib/Alien/Build/Plugin/Prefer/SortVersions.pm
+@@ -239,12 +237,10 @@ t/alien_build_plugin_fetch_netftp.t
+ t/alien_build_plugin_fetch_wget.t
+ t/alien_build_plugin_gather_isolatedynamic.t
+ t/alien_build_plugin_meta.t
+-t/alien_build_plugin_pkgconfig_commandline.t
+ t/alien_build_plugin_pkgconfig_libpkgconf.t
+ t/alien_build_plugin_pkgconfig_makestatic.t
+ t/alien_build_plugin_pkgconfig_negotiate.t
+ t/alien_build_plugin_pkgconfig_negotiate__pick.t
+-t/alien_build_plugin_pkgconfig_pp.t
+ t/alien_build_plugin_prefer_badversion.t
+ t/alien_build_plugin_prefer_sortversions.t
+ t/alien_build_plugin_probe_cbuilder.t
+diff --git a/Makefile.PL b/Makefile.PL
+index 86d3484..b86b991 100644
+--- a/Makefile.PL
++++ b/Makefile.PL
+@@ -74,11 +74,9 @@ my %WriteMakefileArgs = (
+     "lib/Alien/Build/Plugin/Fetch/NetFTP.pm"             => "\$(INST_LIB)/Alien/Build/Plugin/Fetch/NetFTP.pm",
+     "lib/Alien/Build/Plugin/Fetch/Wget.pm"               => "\$(INST_LIB)/Alien/Build/Plugin/Fetch/Wget.pm",
+     "lib/Alien/Build/Plugin/Gather/IsolateDynamic.pm"    => "\$(INST_LIB)/Alien/Build/Plugin/Gather/IsolateDynamic.pm",
+-    "lib/Alien/Build/Plugin/PkgConfig/CommandLine.pm"    => "\$(INST_LIB)/Alien/Build/Plugin/PkgConfig/CommandLine.pm",
+     "lib/Alien/Build/Plugin/PkgConfig/LibPkgConf.pm"     => "\$(INST_LIB)/Alien/Build/Plugin/PkgConfig/LibPkgConf.pm",
+     "lib/Alien/Build/Plugin/PkgConfig/MakeStatic.pm"     => "\$(INST_LIB)/Alien/Build/Plugin/PkgConfig/MakeStatic.pm",
+     "lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm"      => "\$(INST_LIB)/Alien/Build/Plugin/PkgConfig/Negotiate.pm",
+-    "lib/Alien/Build/Plugin/PkgConfig/PP.pm"             => "\$(INST_LIB)/Alien/Build/Plugin/PkgConfig/PP.pm",
+     "lib/Alien/Build/Plugin/Prefer.pod"                  => "\$(INST_LIB)/Alien/Build/Plugin/Prefer.pod",
+     "lib/Alien/Build/Plugin/Prefer/BadVersion.pm"        => "\$(INST_LIB)/Alien/Build/Plugin/Prefer/BadVersion.pm",
+     "lib/Alien/Build/Plugin/Prefer/SortVersions.pm"      => "\$(INST_LIB)/Alien/Build/Plugin/Prefer/SortVersions.pm",
+@@ -180,4 +178,4 @@ sub requires { goto &runtime_requires }
+ sub runtime_requires {
+   my ( $module, $version_or_range ) = @_;
+   _add_prereq( PREREQ_PM => $module, $version_or_range );
+-}
+\ No newline at end of file
++}
+diff --git a/lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm b/lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm
+index 2d65bfc..cad800d 100644
+--- a/lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm
++++ b/lib/Alien/Build/Plugin/PkgConfig/Negotiate.pm
+@@ -3,9 +3,7 @@ package Alien::Build::Plugin::PkgConfig::Negotiate;
+ use strict;
+ use warnings;
+ use Alien::Build::Plugin;
+-use Alien::Build::Plugin::PkgConfig::PP;
+ use Alien::Build::Plugin::PkgConfig::LibPkgConf;
+-use Alien::Build::Plugin::PkgConfig::CommandLine;
+ use Alien::Build::Util qw( _perl_config );
+ use Carp ();
+ 
+@@ -32,22 +30,6 @@ sub pick
+     return 'PkgConfig::LibPkgConf';
+   }
+   
+-  if(Alien::Build::Plugin::PkgConfig::CommandLine->available)
+-  {
+-    # TODO: determine environment or flags necessary for using pkg-config
+-    # on solaris 64 bit.
+-    # Some advice on pkg-config and 64 bit Solaris
+-    # https://docs.oracle.com/cd/E53394_01/html/E61689/gplhi.html
+-    if(! (_perl_config('osname') eq 'solaris' && _perl_config('ptrsize') == 8))
+-    {
+-      return 'PkgConfig::CommandLine';
+-    }
+-  }
+-  
+-  if(Alien::Build::Plugin::PkgConfig::PP->available)
+-  {
+-    return 'PkgConfig::PP';
+-  }
+   else
+   {
+     # this is a fata error.  because we check for a pkg-config implementation
+@@ -55,7 +37,7 @@ sub pick
+     # fallback on installing PkgConfig.pm as a prereq if nothing else is avail).
+     # we therefore expect at least one of these to work, if not, then the configuration
+     # of the system has shifted from underneath us.
+-    Carp::croak("Could not find an appropriate pkg-config or pkgconf implementation, please install PkgConfig.pm, PkgConfig::LibPkgConf, pkg-config or pkgconf");
++    Carp::croak("Could not find an appropriate pkg-config or pkgconf implementation, please install PkgConfig::LibPkgConf");
+   }
+ }
+ 
+diff --git a/t/01_use.t b/t/01_use.t
+index ecc8243..8e7daf2 100644
+--- a/t/01_use.t
++++ b/t/01_use.t
+@@ -40,11 +40,9 @@ require_ok 'Alien::Build::Plugin::Fetch::LocalDir';
+ require_ok 'Alien::Build::Plugin::Fetch::NetFTP';
+ require_ok 'Alien::Build::Plugin::Fetch::Wget';
+ require_ok 'Alien::Build::Plugin::Gather::IsolateDynamic';
+-require_ok 'Alien::Build::Plugin::PkgConfig::CommandLine';
+ require_ok 'Alien::Build::Plugin::PkgConfig::LibPkgConf';
+ require_ok 'Alien::Build::Plugin::PkgConfig::MakeStatic';
+ require_ok 'Alien::Build::Plugin::PkgConfig::Negotiate';
+-require_ok 'Alien::Build::Plugin::PkgConfig::PP';
+ require_ok 'Alien::Build::Plugin::Prefer::BadVersion';
+ require_ok 'Alien::Build::Plugin::Prefer::SortVersions';
+ require_ok 'Alien::Build::Plugin::Probe::CBuilder';
+@@ -97,11 +95,9 @@ ok -f 't/alien_build_plugin_fetch_localdir.t',                'test for Alien::B
+ ok -f 't/alien_build_plugin_fetch_netftp.t',                  'test for Alien::Build::Plugin::Fetch::NetFTP';
+ ok -f 't/alien_build_plugin_fetch_wget.t',                    'test for Alien::Build::Plugin::Fetch::Wget';
+ ok -f 't/alien_build_plugin_gather_isolatedynamic.t',         'test for Alien::Build::Plugin::Gather::IsolateDynamic';
+-ok -f 't/alien_build_plugin_pkgconfig_commandline.t',         'test for Alien::Build::Plugin::PkgConfig::CommandLine';
+ ok -f 't/alien_build_plugin_pkgconfig_libpkgconf.t',          'test for Alien::Build::Plugin::PkgConfig::LibPkgConf';
+ ok -f 't/alien_build_plugin_pkgconfig_makestatic.t',          'test for Alien::Build::Plugin::PkgConfig::MakeStatic';
+ ok -f 't/alien_build_plugin_pkgconfig_negotiate.t',           'test for Alien::Build::Plugin::PkgConfig::Negotiate';
+-ok -f 't/alien_build_plugin_pkgconfig_pp.t',                  'test for Alien::Build::Plugin::PkgConfig::PP';
+ ok -f 't/alien_build_plugin_prefer_badversion.t',             'test for Alien::Build::Plugin::Prefer::BadVersion';
+ ok -f 't/alien_build_plugin_prefer_sortversions.t',           'test for Alien::Build::Plugin::Prefer::SortVersions';
+ ok -f 't/alien_build_plugin_probe_cbuilder.t',                'test for Alien::Build::Plugin::Probe::CBuilder';
+diff --git a/t/alien_build_plugin_pkgconfig_negotiate.t b/t/alien_build_plugin_pkgconfig_negotiate.t
+index 1233b9a..9492ea1 100644
+--- a/t/alien_build_plugin_pkgconfig_negotiate.t
++++ b/t/alien_build_plugin_pkgconfig_negotiate.t
+@@ -16,7 +16,7 @@ subtest 'pick' => sub {
+ 
+ subtest 'override' => sub {
+ 
+-  foreach my $name (qw( PP LibPkgConf CommandLine ))
++  foreach my $name (qw( LibPkgConf ))
+   {
+     local $ENV{ALIEN_BUILD_PKG_CONFIG} = "PkgConfig::$name";
+     subtest $ENV{ALIEN_BUILD_PKG_CONFIG} => sub {
+diff --git a/t/alien_build_plugin_pkgconfig_negotiate__pick.t b/t/alien_build_plugin_pkgconfig_negotiate__pick.t
+index 105c6b6..db886f8 100644
+--- a/t/alien_build_plugin_pkgconfig_negotiate__pick.t
++++ b/t/alien_build_plugin_pkgconfig_negotiate__pick.t
+@@ -25,9 +25,10 @@ subtest 'LibPkgConf' => sub {
+   
+       local $PkgConfig::LibPkgConf::VERSION = '0.01';
+ 
+-      isnt(
+-        Alien::Build::Plugin::PkgConfig::Negotiate->pick,
+-        'PkgConfig::LibPkgConf',
++      eval { Alien::Build::Plugin::PkgConfig::Negotiate->pick };
++      ok(
++        $@,
++        'PkgConfig::LibPkgConf "0.1" is too old',
+       );
+ 
+     };
+@@ -40,9 +41,10 @@ subtest 'LibPkgConf' => sub {
+     # cannot be loaded for the rest of this .t file
+     note scalar capture_merged { Devel::Hide->import(qw( PkgConfig::LibPkgConf )) };
+   
+-    isnt(
+-      Alien::Build::Plugin::PkgConfig::Negotiate->pick,
+-      'PkgConfig::LibPkgConf',
++    eval { Alien::Build::Plugin::PkgConfig::Negotiate->pick };
++    ok(
++      $@,
++      'Missing PkgConfig::LibPkgConf triggers an exception',
+     );
+ 
+   };
+@@ -56,144 +58,5 @@ my $make_pkgconfig_libpkgconf_unavailable = Test2::Mock->new(
+   ],
+ );
+ 
+-subtest 'CommandLine' => sub {
+-
+-  local $INC{'PkgConfig.pm'} = __FILE__;
+-  local $PkgConfig::VERSION = '0.14026';
+-
+-  my %which;
+-
+-  my $mock = Test2::Mock->new(
+-    class => 'File::Which',
+-    override => [
+-      which => sub {
+-        my($prog) = @_;
+-        if(defined $prog)
+-        {
+-          if($which{$prog})
+-          {
+-            note "which: $prog => $which{$prog}";
+-            return $which{$prog};
+-          }
+-          else
+-          {
+-            note "which: $prog N/A";
+-          }
+-        }
+-        else
+-        {
+-          note "which: undef";
+-        }
+-      },
+-    ],
+-  );
+-  
+-  my $mock2 = Test2::Mock->new(
+-    class => 'Alien::Build::Plugin::PkgConfig::Negotiate',
+-  );
+-  
+-  if($^O eq 'solaris') {
+-    $mock2->override(
+-      _perl_config => sub {
+-        my($key) = @_;
+-        if($key eq 'osname')
+-        { return 'linux' }
+-        else
+-        { return $Config{$key} }
+-      },
+-    );
+-  }
+-
+-  subtest 'no command line' => sub {
+-
+-    %which = ();
+-
+-    is(
+-      Alien::Build::Plugin::PkgConfig::Negotiate->pick,
+-      'PkgConfig::PP',
+-    );
+-  
+-  };
+-
+-  subtest 'pkg-config' => sub {
+-  
+-    %which = ( 'pkg-config' => '/usr/bin/pkg-config' );
+-  
+-    is(
+-      Alien::Build::Plugin::PkgConfig::Negotiate->pick,
+-      'PkgConfig::CommandLine',
+-    );
+-
+-  };
+-
+-  subtest 'pkgconf' => sub {
+-  
+-    %which = ( 'pkgconf' => '/usr/bin/pkgconf' );
+-  
+-    is(
+-      Alien::Build::Plugin::PkgConfig::Negotiate->pick,
+-      'PkgConfig::CommandLine',
+-    );
+-
+-  };
+-
+-  subtest 'PKG_CONFIG' => sub {
+-  
+-    local $ENV{PKG_CONFIG} = 'foo-pkg-config';
+-    %which = ( 'foo-pkg-config' => '/usr/bin/foo-pkg-config' );
+-    
+-    is(
+-      Alien::Build::Plugin::PkgConfig::Negotiate->pick,
+-      'PkgConfig::CommandLine',
+-    );    
+-  
+-  };
+-
+-  subtest 'PP' => sub {
+-
+-    subtest '64 bit solaris' => sub {
+-  
+-      %which = ( 'pkg-config' => '/usr/bin/pkg-config' );
+-
+-      # From the old AB::MB days we prefer PkgConfig.pm
+-      # for 64 bit solaris over the command line pkg-config
+-      
+-      my $mock2 = Test2::Mock->new(
+-        class => 'Alien::Build::Plugin::PkgConfig::Negotiate',
+-        override => [
+-          _perl_config => sub {
+-            my($key) = @_;
+-            if($key eq 'ptrsize')
+-            { return 8 }
+-            elsif($key eq 'osname')
+-            { return 'solaris' }
+-            else
+-            { return $Config{$key} }
+-          },
+-        ],
+-      );
+-      
+-      is(
+-        Alien::Build::Plugin::PkgConfig::Negotiate->pick,
+-        'PkgConfig::PP',
+-      );
+-
+-    };
+-    
+-    subtest 'PP is fallback' => sub {
+-
+-      %which = ();
+-
+-      is(
+-        Alien::Build::Plugin::PkgConfig::Negotiate->pick,
+-        'PkgConfig::PP',
+-      );
+-
+-    };
+-
+-  };
+-
+-};
+-
+ done_testing;
+ 
+-- 
+2.14.4
+
diff --git a/perl-Alien-Build.spec b/perl-Alien-Build.spec
index f86278c..9d7927e 100644
--- a/perl-Alien-Build.spec
+++ b/perl-Alien-Build.spec
@@ -2,15 +2,15 @@
 %{bcond_without perl_Alien_Build_enables_optional_test}
 
 Name:           perl-Alien-Build
-Version:        1.42
+Version:        1.43
 Release:        1%{?dist}
 Summary:        Build external dependencies for use in CPAN
 License:        GPL+ or Artistic
-URL:            http://search.cpan.org/dist/Alien-Build/
-Source0:        http://www.cpan.org/authors/id/P/PL/PLICEASE/Alien-Build-%{version}.tar.gz
+URL:            https://metacpan.org/release/Alien-Build
+Source0:        https://cpan.metacpan.org/authors/id/P/PL/PLICEASE/Alien-Build-%{version}.tar.gz
 # Support only the most advanced pkgconfig implementation,
 # the files are deleted in prep section
-Patch0:         Alien-Build-1.42-Remove-redundant-pkgconfig-implementations.patch
+Patch0:         Alien-Build-1.43-Remove-redundant-pkgconfig-implementations.patch
 BuildArch:      noarch
 BuildRequires:  make
 BuildRequires:  perl-generators
@@ -181,6 +181,9 @@ make test
 %{_mandir}/man3/*
 
 %changelog
+* Mon Jun 04 2018 Petr Pisar <ppisar@redhat.com> - 1.43-1
+- 1.43 bump
+
 * Thu May 10 2018 Jitka Plesnikova <jplesnik@redhat.com> - 1.42-1
 - 1.42 bump
 
diff --git a/sources b/sources
index 208a19c..bb35d6f 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (Alien-Build-1.42.tar.gz) = 3c8e15a66deefd6c7f64b88130a8f9fbc7388648607f113fc40dc45e0fb125a97c1bd7df07cee62f960e5e968c292a234388f5742880b164ffafac21df0b7bd9
+SHA512 (Alien-Build-1.43.tar.gz) = ba60413143c1dae2fa335ff350a7470b3984c61b0b07791b37aee91a95898acd6667e2b3f18828638539a5cc1fff80cbf7a349b95adb7028198df0d5f1c8dc86