From: Patrick Steinhardt <ps@pks.im>
Date: Tue, 10 Apr 2018 12:36:31 +0000 (+0100)
Subject: cfdisk: fix missing prototype for `get_wch`
X-Git-Tag: v2.33-rc1~315
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cc6ab5efb13453cc8b5660ab268992e4861c73a7;p=thirdparty%2Futil-linux.git

cfdisk: fix missing prototype for `get_wch`

The header <ncursesw/ncurses.h> defines the get_wch(3) function only
when `NCURSES_WIDECHAR` is defined. This define is actually getting set
in the same header file, but only in case `_XOPEN_SOURCE` is defined and
has a value of 500 or higher. As we already have the precedence of
defining `_XOPEN_SOURCE` to a value of 600 in some other files, simply
define it to the minimum required value of 500 in "cfdisk.c". This
silences a warning for `get_wch` being unknown.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
---

diff --git a/disk-utils/cfdisk.c b/disk-utils/cfdisk.c
index 806bff8370..8f590387fd 100644
--- a/disk-utils/cfdisk.c
+++ b/disk-utils/cfdisk.c
@@ -33,6 +33,10 @@
 # include <slang/slang.h>
 #endif
 
+#ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE 500 /* for inclusion of get_wch */
+#endif
+
 #ifdef HAVE_SLCURSES_H
 # include <slcurses.h>
 #elif defined(HAVE_SLANG_SLCURSES_H)