--- /dev/null
+From 3163c49f9f4ad473a00d8a345ee334a028376011 Mon Sep 17 00:00:00 2001
+From: Heiko Becker <heirecka@exherbo.org>
+Date: Fri, 23 Jul 2021 16:32:46 +0200
+Subject: [PATCH] meson: Make tests optional
+
+Now can be disabled with -DSKIP_TESTS=true.
+
+It allows to avoid meson error during build when ip isn't installed.
+
+Closes: #359
+
+Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
+Signed-off-by: Heiko Becker <heirecka@exherbo.org>
+[ pvorel: Rename variable TEST => SKIP_TESTS, default false, adjust
+the description ]
+Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
+
+[Retrieved from:
+https://github.com/iputils/iputils/commit/3163c49f9f4ad473a00d8a345ee334a028376011]
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ meson_options.txt | 3 ++
+ ping/meson.build | 84 ++-----------------------------------------
+ ping/test/meson.build | 81 +++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 86 insertions(+), 82 deletions(-)
+ create mode 100644 ping/test/meson.build
+
+diff --git a/meson_options.txt b/meson_options.txt
+index ac5f5d98..517667f4 100644
+--- a/meson_options.txt
++++ b/meson_options.txt
+@@ -72,3 +72,6 @@ option('INSTALL_SYSTEMD_UNITS', type: 'boolean', value: false,
+
+ option('USE_GETTEXT', type: 'boolean', value: true,
+ description: 'Enable I18N')
++
++option('SKIP_TESTS', type: 'boolean', value: false,
++ description: 'Skip tests during build')
+diff --git a/ping/meson.build b/ping/meson.build
+index 1e678ec8..83ea353c 100644
+--- a/ping/meson.build
++++ b/ping/meson.build
+@@ -27,86 +27,6 @@ if (setcap_ping)
+ )
+ endif
+
+-##### TESTS #####
+-
+-# TODO: ::1 generates DEPRECATION: ":" is not allowed in test name "ping -c1 ::1", it has been replaced with "_"
+-
+-# GitHub CI does not have working IPv6
+-# https://github.com/actions/virtual-environments/issues/668
+-ipv6_dst = []
+-ipv6_switch = []
+-r = run_command('ip', '-6', 'a')
+-if r.stdout().strip().contains('::1')
+- message('IPv6 enabled')
+- ipv6_dst = [ '::1' ]
+- ipv6_switch = [ '-6' ]
+-else
+- message('WARNING: IPv6 disabled')
++if not get_option('SKIP_TESTS')
++ subdir('test')
+ endif
+-
+-run_as_root = false
+-r = run_command('id', '-u')
+-if r.stdout().strip().to_int() == 0
+- message('running as root')
+- run_as_root = true
+-else
+- message('running as normal user')
+-endif
+-
+-foreach dst : [ 'localhost', '127.0.0.1' ] + ipv6_dst
+- foreach switch : [ '', '-4' ] + ipv6_switch
+- args = [ '-c1', dst ]
+- should_fail = false
+-
+- if switch != ''
+- args = [switch] + args
+- if (switch == '-4' and dst == '::1') or (switch == '-6' and dst == '127.0.0.1')
+- should_fail = true
+- endif
+- endif
+-
+- name = 'ping ' + ' '.join(args)
+- test(name, ping, args : args, should_fail : should_fail)
+- endforeach
+-endforeach
+-
+-ping_tests_opt = [
+- [ '-c1' ],
+- [ '-c5', '-i0.1' ],
+- [ '-c1', '-I', 'lo' ],
+- [ '-c1', '-w1' ],
+- [ '-c1', '-W1' ],
+- [ '-c1', '-W1.1' ],
+-]
+-foreach dst : [ '127.0.0.1' ] + ipv6_dst
+- foreach args : ping_tests_opt
+- args += [ dst ]
+- name = 'ping ' + ' '.join(args)
+- test(name, ping, args : args)
+- endforeach
+-endforeach
+-
+-ping_tests_opt_fail = [
+- [ '-c1.1' ],
+- [ '-I', 'nonexisting' ],
+- [ '-w0.1' ],
+- [ '-w0,1' ],
+-]
+-foreach dst : [ '127.0.0.1' ] + ipv6_dst
+- foreach args : ping_tests_opt_fail
+- args += [ dst ]
+- name = 'ping ' + ' '.join(args)
+- test(name, ping, args : args, should_fail : true)
+- endforeach
+-endforeach
+-
+-ping_tests_user_fail = [
+- [ '-c1', '-i0.001' ], # -c1 required to quit ping when running as root
+-]
+-foreach dst : [ '127.0.0.1' ] + ipv6_dst
+- foreach args : ping_tests_user_fail
+- args += [ dst ]
+- name = 'ping ' + ' '.join(args)
+- test(name, ping, args : args, should_fail : not run_as_root)
+- endforeach
+-endforeach
+diff --git a/ping/test/meson.build b/ping/test/meson.build
+new file mode 100644
+index 00000000..43aed758
+--- /dev/null
++++ b/ping/test/meson.build
+@@ -0,0 +1,81 @@
++# TODO: ::1 generates DEPRECATION: ":" is not allowed in test name "ping -c1 ::1", it has been replaced with "_"
++
++# GitHub CI does not have working IPv6
++# https://github.com/actions/virtual-environments/issues/668
++ipv6_dst = []
++ipv6_switch = []
++r = run_command('ip', '-6', 'a')
++if r.stdout().strip().contains('::1')
++ message('IPv6 enabled')
++ ipv6_dst = [ '::1' ]
++ ipv6_switch = [ '-6' ]
++else
++ message('WARNING: IPv6 disabled')
++endif
++
++run_as_root = false
++r = run_command('id', '-u')
++if r.stdout().strip().to_int() == 0
++ message('running as root')
++ run_as_root = true
++else
++ message('running as normal user')
++endif
++
++foreach dst : [ 'localhost', '127.0.0.1' ] + ipv6_dst
++ foreach switch : [ '', '-4' ] + ipv6_switch
++ args = [ '-c1', dst ]
++ should_fail = false
++
++ if switch != ''
++ args = [switch] + args
++ if (switch == '-4' and dst == '::1') or (switch == '-6' and dst == '127.0.0.1')
++ should_fail = true
++ endif
++ endif
++
++ name = 'ping ' + ' '.join(args)
++ test(name, ping, args : args, should_fail : should_fail)
++ endforeach
++endforeach
++
++ping_tests_opt = [
++ [ '-c1' ],
++ [ '-c5', '-i0.1' ],
++ [ '-c1', '-I', 'lo' ],
++ [ '-c1', '-w1' ],
++ [ '-c1', '-W1' ],
++ [ '-c1', '-W1.1' ],
++]
++foreach dst : [ '127.0.0.1' ] + ipv6_dst
++ foreach args : ping_tests_opt
++ args += [ dst ]
++ name = 'ping ' + ' '.join(args)
++ test(name, ping, args : args)
++ endforeach
++endforeach
++
++ping_tests_opt_fail = [
++ [ '-c1.1' ],
++ [ '-I', 'nonexisting' ],
++ [ '-w0.1' ],
++ [ '-w0,1' ],
++]
++foreach dst : [ '127.0.0.1' ] + ipv6_dst
++ foreach args : ping_tests_opt_fail
++ args += [ dst ]
++ name = 'ping ' + ' '.join(args)
++ test(name, ping, args : args, should_fail : true)
++ endforeach
++endforeach
++
++ping_tests_user_fail = [
++ [ '-c1', '-i0.001' ], # -c1 required to quit ping when running as root
++]
++foreach dst : [ '127.0.0.1' ] + ipv6_dst
++ foreach args : ping_tests_user_fail
++ args += [ dst ]
++ name = 'ping ' + ' '.join(args)
++ test(name, ping, args : args, should_fail : not run_as_root)
++ endforeach
++endforeach