[openwrt/openwrt] dropbear: fix compilation for uClibc

[LEDE Commits]

dedeckeh pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/751e6ab8e625b7b29d1184c8f28ecd6b2df81fa0

commit 751e6ab8e625b7b29d1184c8f28ecd6b2df81fa0
Author: Hans Dedecker <dedeckeh at gmail.com>
AuthorDate: Wed Jun 24 22:30:58 2020 +0200

    dropbear: fix compilation for uClibc
    
    Backport patches which fix compile issue for uClibc-ng :
    
    dbrandom.c:174:8: warning: implicit declaration of function 'getrandom'; did you mean 'genrandom'? [-Wimplicit-function-declaration]
      ret = getrandom(buf, sizeof(buf), GRND_NONBLOCK);
            ^~~~~~~~~
            genrandom
    dbrandom.c:174:36: error: 'GRND_NONBLOCK' undeclared (first use in this function); did you mean 'SOCK_NONBLOCK'?
      ret = getrandom(buf, sizeof(buf), GRND_NONBLOCK);
                                        ^~~~~~~~~~~~~
                                        SOCK_NONBLOCK
    
    Signed-off-by: Hans Dedecker <dedeckeh at gmail.com>
---
 .../001-backport_GNU_SOURCE-for-random.patch       | 25 ++++++++++++++++
 .../002-backport-move-GNU_SOURCE-earlier.patch     | 34 ++++++++++++++++++++++
 2 files changed, 59 insertions(+)

diff --git a/package/network/services/dropbear/patches/001-backport_GNU_SOURCE-for-random.patch b/package/network/services/dropbear/patches/001-backport_GNU_SOURCE-for-random.patch
new file mode 100644
index 0000000000..d9b13d77dd
--- /dev/null
+++ b/package/network/services/dropbear/patches/001-backport_GNU_SOURCE-for-random.patch
@@ -0,0 +1,25 @@
+From 3f5c106a880a02b21739f2022746e6aa7672474c Mon Sep 17 00:00:00 2001
+From: Matt Johnston <matt at ucc.asn.au>
+Date: Tue, 23 Jun 2020 21:38:46 +0800
+Subject: [PATCH] _GNU_SOURCE for random
+
+---
+ includes.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/includes.h b/includes.h
+index e8c3e18..2789f23 100644
+--- a/includes.h
++++ b/includes.h
+@@ -125,6 +125,8 @@
+ #endif
+ 
+ #ifdef HAVE_SYS_RANDOM_H
++/* uclibc needs _GNU_SOURCE */
++#define _GNU_SOURCE
+ #include <sys/random.h>
+ #endif
+ 
+-- 
+2.25.1
+
diff --git a/package/network/services/dropbear/patches/002-backport-move-GNU_SOURCE-earlier.patch b/package/network/services/dropbear/patches/002-backport-move-GNU_SOURCE-earlier.patch
new file mode 100644
index 0000000000..26454c2829
--- /dev/null
+++ b/package/network/services/dropbear/patches/002-backport-move-GNU_SOURCE-earlier.patch
@@ -0,0 +1,34 @@
+From a7a67585cbc3fe5df85c641618b347a51a943356 Mon Sep 17 00:00:00 2001
+From: Matt Johnston <matt at ucc.asn.au>
+Date: Tue, 23 Jun 2020 22:24:58 +0800
+Subject: [PATCH] move GNU_SOURCE earlier
+
+---
+ includes.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/includes.h b/includes.h
+index 2789f23..884ebf7 100644
+--- a/includes.h
++++ b/includes.h
+@@ -25,6 +25,8 @@
+ #ifndef DROPBEAR_INCLUDES_H_
+ #define DROPBEAR_INCLUDES_H_
+ 
++/* uclibc needs _GNU_SOURCE, maybe other things? */
++#define _GNU_SOURCE
+ 
+ #include "options.h"
+ #include "debug.h"
+@@ -125,8 +127,6 @@
+ #endif
+ 
+ #ifdef HAVE_SYS_RANDOM_H
+-/* uclibc needs _GNU_SOURCE */
+-#define _GNU_SOURCE
+ #include <sys/random.h>
+ #endif
+ 
+-- 
+2.25.1
+