--- /dev/null
+#include <locale.h>
+#include <string.h>
+#include <langinfo.h>
+#include "test.h"
+
+int t_setutf8()
+{
+ (void)(
+ setlocale(LC_CTYPE, "C.UTF-8") ||
+ setlocale(LC_CTYPE, "POSIX.UTF-8") ||
+ setlocale(LC_CTYPE, "en_US.UTF-8") ||
+ setlocale(LC_CTYPE, "en_GB.UTF-8") ||
+ setlocale(LC_CTYPE, "en.UTF-8") ||
+ setlocale(LC_CTYPE, "UTF-8") ||
+ setlocale(LC_CTYPE, "") );
+
+ if (strcmp(nl_langinfo(CODESET), "UTF-8"))
+ return t_error("cannot set UTF-8 locale for test (codeset=%s)\n", nl_langinfo(CODESET));
+
+ return 0;
+}