vpnc: add patches to fix build with the musl C library

This commit adds three patches that are needed to fix build issues on
musl:

 - <error.h> not available on musl
 - structure redefinitions due to direct inclusion of kernel headers
 - missing <sys/ttydefaults.h> inclusion

Patches have been submitted upstream:
http://lists.unix-ag.uni-kl.de/pipermail/vpnc-devel/2016-June/004186.html

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/package/vpnc/0009-config.c-add-missing-sys-ttydefaults.h-include.patch b/package/vpnc/0009-config.c-add-missing-sys-ttydefaults.h-include.patch
new file mode 100644
index 0000000000..bce552e55e
--- /dev/null
+++ b/package/vpnc/0009-config.c-add-missing-sys-ttydefaults.h-include.patch
@@ -0,0 +1,36 @@
+From 17277915af703a4767de791916621d8f59aef516 Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Wed, 10 Feb 2016 23:21:26 +0100
+Subject: [PATCH] config.c: add missing <sys/ttydefaults.h> include
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This include is needed to get the definition of CEOT, otherwise the
+build fails with:
+
+config.c: In function ‘vpnc_getline’:
+config.c:145:25: error: ‘CEOT’ undeclared (first use in this function)
+   if (llen == 0 && c == CEOT)
+                         ^
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ config.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/config.c b/config.c
+index 11b363b..f47a534 100644
+--- a/config.c
++++ b/config.c
+@@ -31,6 +31,7 @@
+ #include <sys/types.h>
+ #include <sys/utsname.h>
+ #include <sys/wait.h>
++#include <sys/ttydefaults.h>
+ 
+ #include <gcrypt.h>
+ 
+-- 
+2.6.4
+