Bump buidlroot version to 2018.02.6

bsp/buildroot/package/tmux/0001-compat-don-t-re-define-program_invocation_short_name.patch

@@ -1,42 +0,0 @@
-From 9b18a98614a9f201b0883c2b15e7c7bde0aa0ff2 Mon Sep 17 00:00:00 2001
-From: "Yann E. MORIN" <yann.morin.1998@free.fr>
-Date: Sun, 5 Feb 2017 17:12:00 +0100
-Subject: [PATCH] compat: don't re-define program_invocation_short_name
-
-program_invocation_short_name is defined in errno.h, and its definition
-can differ between the various C libraries: glibc defines it as:
-    extern char *program_invocation_short_name;
-
-while uClibc defines it as:
-    extern const char *program_invocation_short_name;
-
-So there is not simple solution to know the prototype.
-
-But since it is defined in errno.h, there is no reason to try and define
-it ourselves; let's just trust what the header provides.
-
-Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
----
- compat/getprogname.c | 3 +--
- 1 file changed, 1 insertion(+), 2 deletions(-)
-
-diff --git a/compat/getprogname.c b/compat/getprogname.c
-index 80a496d..ad619fc 100644
---- a/compat/getprogname.c
-+++ b/compat/getprogname.c
-@@ -19,11 +19,10 @@
- #include "compat.h"
- 
- #if defined(HAVE_PROGRAM_INVOCATION_SHORT_NAME)
-+#include <errno.h>
- const char *
- getprogname(void)
- {
--	extern char	*program_invocation_short_name;
--
- 	return (program_invocation_short_name);
- }
- #elif defined(HAVE___PROGNAME)
--- 
-2.7.4
-

bsp/buildroot/package/tmux/tmux.hash

@@ -1,2 +1,3 @@
 # Locally computed:
-sha256 55313e132f0f42de7e020bf6323a1939ee02ab79c48634aa07475db41573852b  tmux-2.3.tar.gz
+sha256 b17cd170a94d7b58c0698752e1f4f263ab6dc47425230df7e53a6435cc7cd7e8  tmux-2.6.tar.gz
+sha256 94e2b1feb1202d3308cc7ab7ec42278d24f10562394bdf269f44649327c8198f  README

bsp/buildroot/package/tmux/tmux.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-TMUX_VERSION = 2.3
+TMUX_VERSION = 2.6
 TMUX_SITE = https://github.com/tmux/tmux/releases/download/$(TMUX_VERSION)
 TMUX_LICENSE = ISC
 TMUX_LICENSE_FILES = README