From 8dfbcf02e424ba1fdef587d81c9e08a37ab8c1b6 Mon Sep 17 00:00:00 2001
From: Oleksandr Kravchuk <open.source@oleksandr-kravchuk.com>
Date: Tue, 2 Jul 2019 20:10:42 +0200
Subject: [PATCH] Define FNM_EXTMATCH for musl

Fixes the following compilation errors with musl that does not have
FNM_EXTMATCH defined:

| main.c: In function 'expand_matches':
| main.c:700:40: error: 'FNM_EXTMATCH' undeclared (first use in this
function); did you mean 'FNM_NOMATCH'?
|   700 |     if(fnmatch(pattern, ifa->ifa_name, FNM_EXTMATCH))
|       |                                        ^~~~~~~~~~~~
|       |                                        FNM_NOMATCH

and

| archlinux.c:40:28: error: 'FNM_EXTMATCH' undeclared (first use in this
function); did you mean 'FNM_NOMATCH'?
|    40 |   if(fnmatch(pattern, buf, FNM_EXTMATCH) == 0) {
|       |                            ^~~~~~~~~~~~
|       |                            FNM_NOMATCH

Upstream-Status: Submitted [https://salsa.debian.org/debian/ifupdown/merge_requests/5]

Signed-off-by: Oleksandr Kravchuk <open.source@oleksandr-kravchuk.com>

---
 archcommon.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/archcommon.h b/archcommon.h
index 818b0b6..ad9cd1a 100644
--- a/archcommon.h
+++ b/archcommon.h
@@ -1,5 +1,9 @@
 #include "header.h"
 
+#if !defined(FNM_EXTMATCH)
+#define FNM_EXTMATCH 0
+#endif
+
 bool execable(const char *);
 
 #define iface_is_link() (!_iface_has(ifd->real_iface, ":."))
