in command line encoding test don't presume extant UTF-8 locale

* test-suite/standalone/test-command-line-encoding: abort if
    locale is not UTF-8

diff --git a/test-suite/standalone/test-command-line-encoding b/test-suite/standalone/test-command-line-encoding
index 525c0aeed022e64ebf6abbe89dc82b942a8bbc91..401011debb9d8f79fec0e9339db1b1077f643126 100755 (executable)
--- a/test-suite/standalone/test-command-line-encoding
+++ b/test-suite/standalone/test-command-line-encoding
@@ -16,7 +16,10 @@ exec guile -q -s "$0" "λ"
 ;; according to the locale settings; see
 ;; <http://lists.gnu.org/archive/html/guile-devel/2011-11/msg00026.html> for
 ;; details.
-(exit (string=? (cadr (program-arguments)) "λ"))
+(if (string-contains-ci (setlocale LC_ALL) "utf")
+    (exit (string=? (cadr (program-arguments)) "λ"))
+    ;; If we can't install a UTF-8 locale, skip the test
+    (exit 77))
 
 ;; Local Variables:
 ;; mode: scheme