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-rw-r--r--scripts/kconfig/zconf.l7
1 files changed, 6 insertions, 1 deletions
diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index 6c62d93b4ffb..16741396d264 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -141,7 +141,12 @@ n [A-Za-z0-9_]
}
#.* /* comment */
\\\n current_file->lineno++;
- .
+ [[:blank:]]+
+ . {
+ fprintf(stderr,
+ "%s:%d:warning: ignoring unsupported character '%c'\n",
+ zconf_curname(), zconf_lineno(), *yytext);
+ }
<<EOF>> {
BEGIN(INITIAL);
}