[gnomemm-website] meson.build: Add "check: false" to run_command()

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 140cdc80e1d7cbc1baeed70f1cc26abfe070dc32
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Fri Feb 4 17:05:25 2022 +0100

    meson.build: Add "check: false" to run_command()
    
    Don't depend on the default value. It will be changed in future
    Meson releases.

 docs/meson.build            | 2 ++
 meson.build                 | 1 +
 tools/website-custom-cmd.py | 2 ++
 3 files changed, 5 insertions(+)
---
diff --git a/docs/meson.build b/docs/meson.build
index ae6899c..efcc3cf 100644
--- a/docs/meson.build
+++ b/docs/meson.build
@@ -23,6 +23,7 @@ if xmllint.found()
     relax_ng_schema_file,
     meson.current_source_dir() / 'can_use_xmllint.xml',
     meson.current_build_dir() / 'can_use_xmllint.stamp',
+    check: false,
   ).returncode() == 0
   if not can_parse_and_validate
     # The DocBook V5.0 package is called docbook5-xml in Ubuntu,
@@ -63,6 +64,7 @@ if can_build_translations and build_translations_by_default
   language_obj = run_command(
     python3, website_custom_cmd, 'get_languages',
     meson.current_source_dir(),
+    check: false,
   )
   if language_obj.stderr() != ''
     warning(language_obj.stderr())
diff --git a/meson.build b/meson.build
index 3257624..2afdc92 100644
--- a/meson.build
+++ b/meson.build
@@ -34,6 +34,7 @@ copy_obj = run_command(
   '.htaccess',
   'images',
   'style',
+  check: false,
 )
 if copy_obj.stdout() != ''
   warning(copy_obj.stdout())
diff --git a/tools/website-custom-cmd.py b/tools/website-custom-cmd.py
index 531c4db..65afb24 100755
--- a/tools/website-custom-cmd.py
+++ b/tools/website-custom-cmd.py
@@ -58,6 +58,8 @@ def get_languages():
           print(line, end=' ')
   except (FileNotFoundError, PermissionError):
     print('Could not find file LINGUAS in', input_dir, file=sys.stderr)
+    return 1
+  return 0
 
 # Called from custom_target()
 def xmllint():