cmake: Print supported stds when warning
This was helpful while debugging CI failure on the 0.54 branch due to
a difference in the structure of self.env.coredata.compiler_options:
@@ -290,10 +290,12 @@ class ConverterTarget:
m = ConverterTarget.std_regex.match(j)
if m:
std = m.group(2)
- if std not in self._all_lang_stds(i):
+ supported = self._all_lang_stds(i)
+ if std not in supported:
mlog.warning(
'Unknown {0}_std "{1}" -> Ignoring. Try setting the project-'
- 'level {0}_std if build errors occur.'.format(i, std),
+ 'level {0}_std if build errors occur. Known '
+ '{0}_stds are: {2}'.format(i, std, ' '.join(supported)),
once=True
)
continue
