From 17bc58e018d21456aa8dc2d25619ca1fda6848d5 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Fri, 16 Jun 2023 11:52:10 +0200
Subject: [PATCH] meson: check for _NL_TIME_WEEK_1STDAY in langinfo.h

... which is required for `cal`.

Fixes GH-2316
---
 meson.build | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/meson.build b/meson.build
index a0c5457c58..37141e7db8 100644
--- a/meson.build
+++ b/meson.build
@@ -484,6 +484,18 @@ have = cc.compiles('''
   name : 'langinfo.h defines _NL_ABALTMON_x constants')
 conf.set('HAVE_LANGINFO_NL_ABALTMON', have ? 1 : false)
 
+have = cc.compiles('''
+   #define _GNU_SOURCE 1
+   #include <langinfo.h>
+   int main(void) {
+        char *str;
+        str = nl_langinfo (_NL_TIME_WEEK_1STDAY);
+        return 0;
+   }
+   ''',
+  name : 'langinfo.h defines _NL_TIME_WEEK_1STDAY constant')
+conf.set('HAVE_DECL__NL_TIME_WEEK_1STDAY', have ? 1 : false)
+
 funcs = '''
         clearenv
         close_range
-- 
2.47.2