Try and find a utf8 locale to use

In other locales we get some test failures for some ghci unicode tests

1 files changed, 16 insertions, 0 deletions

diff --git a/testsuite/driver/runtests.py b/testsuite/driver/runtests.py
index 8f93bb8b3d..2e7e9d88da 100644
--- a/testsuite/driver/runtests.py
+++ b/testsuite/driver/runtests.py
@@ -22,6 +22,22 @@ from testglobals import *
 # value.
 os.environ['TERM'] = 'vt100'
 
+# Try and find a utf8 locale to use
+# First see if 'locale -a' works
+h = os.popen('locale -a', 'r')
+v = h.read()
+h.close()
+if v != '':
+    # If it does then use the first utf8 locale that is available
+    h = os.popen('locale -a | grep -i utf8 | head', 'r')
+    v = h.read()
+    h.close()
+    if v != '':
+        os.environ['LC_ALL'] = v
+    else:
+        print 'WARNING: No UTF8 locale found.'
+        print 'You may get some spurious test failures.'
+
 global config
 config = getConfig() # get it from testglobals