* sysdep.c (str_collate): Do not look at errno after towlower_l.

errno's value is not specified after towlower_l.  Instead, assume
that towlower_l returns its argument on failure, which is portable
in practice.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 181a43d058f..81381168c0c 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2014-08-29  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * sysdep.c (str_collate): Do not look at errno after towlower_l.
+        errno's value is not specified after towlower_l.  Instead, assume
+        that towlower_l returns its argument on failure, which is portable
+        in practice.
+
 2014-08-29  Eli Zaretskii  <eliz@gnu.org>
 
         * fns.c (Fstring_collate_lessp, Fstring_collate_equalp): Doc fix.