[vala/0.40] posix: Add to_string to NLItem and add NLTime

[Rico Tzschichholz <ricotz src gnome org>]

commit 7801b47d090f8bec9f4b132354a375abffa995c1
Author: Dr. Michael Lauer <mickey vanille-media de>
Date:   Sat Mar 24 11:38:17 2018 +0100

    posix: Add to_string to NLItem and add NLTime
    
    Patch based on https://github.com/elementary/calendar/blob/master/vapi/posix-extension.vapi
    
    Note: NLTime is actually a glibc'ism, but in the absence of a glibc.vapi, posix.vapi
    is an acceptable place. See also bug #793443.

 vapi/posix.vapi |   17 ++++++++++++++++-
 1 files changed, 16 insertions(+), 1 deletions(-)
---
diff --git a/vapi/posix.vapi b/vapi/posix.vapi
index 13a6c5d..3ab41d9 100644
--- a/vapi/posix.vapi
+++ b/vapi/posix.vapi
@@ -3072,7 +3072,22 @@ namespace Posix {
                RADIXCHAR,
                THOUSEP,
                YESEXPR,
-               NOEXPR
+               NOEXPR;
+               [CCode (cheader_filename = "langinfo.h", cname = "nl_langinfo")]
+               public unowned string to_string ();
+       }
+
+       [CCode (cheader_filename = "langinfo.h", cname = "nl_item", cprefix = "_NL_TIME_", has_type_id = 
false)]
+       public enum NLTime {
+               WEEK_NDAYS,
+               WEEK_1STDAY,
+               WEEK_1STWEEK,
+               FIRST_WEEKDAY,
+               FIRST_WORKDAY,
+               CAL_DIRECTION,
+               TIMEZONE;
+               [CCode (cheader_filename = "langinfo.h", cname = "nl_langinfo")]
+               public unowned string to_string ();
        }
 
        [CCode (cheader_filename = "langinfo.h")]