[Buildroot] [git commit branch/next] package/libuhttpd: fix build with wolfssl

[Yann E. MORIN]

commit: https://git.buildroot.net/buildroot/commit/?id=03889590606e4a5aa3adf990e5b31c82c49ccf12
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/next

Fix the following build failure with wolfssl raised since bump to
version 3.12.1 in commit 4d85defa7103aadc74223868fb83ed0bed144f4d:

/tmp/instance-4/output-1/build/libuhttpd-3.12.1/src/ssl/openssl.c: In function 'ssl_context_new':
/tmp/instance-4/output-1/build/libuhttpd-3.12.1/src/ssl/openssl.c:174:33: error: 'tls13_ciphersuites' undeclared (first use in this function)
  174 |     SSL_CTX_set_ciphersuites(c, tls13_ciphersuites);
      |                                 ^~~~~~~~~~~~~~~~~~

Fixes:
 - http://autobuild.buildroot.org/results/25db1e999950bbee069ba7364a228184a6a77808

Note: we have a reference to a pull request on the 'ssl' repository,
because it is a git submodule of libuhttpd.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
[yann.morin.1998 at free.fr: explain the reference to ssl/pull/1]
Signed-off-by: Yann E. MORIN <yann.morin.1998 at free.fr>
---
 .../0001-openssl.c-fix-build-with-wolfssl.patch    | 47 ++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/package/libuhttpd/0001-openssl.c-fix-build-with-wolfssl.patch b/package/libuhttpd/0001-openssl.c-fix-build-with-wolfssl.patch
new file mode 100644
index 0000000000..deb1a0f93b
--- /dev/null
+++ b/package/libuhttpd/0001-openssl.c-fix-build-with-wolfssl.patch
@@ -0,0 +1,47 @@
+From e5c5ed1c64cfc715729c9bfbfdcc4be225f344ff Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice at gmail.com>
+Date: Wed, 4 Aug 2021 11:32:39 +0200
+Subject: [PATCH] openssl.c: fix build with wolfssl
+
+Fix the following build failure with wolfssl:
+
+/tmp/instance-4/output-1/build/libuhttpd-3.12.1/src/ssl/openssl.c: In function 'ssl_context_new':
+/tmp/instance-4/output-1/build/libuhttpd-3.12.1/src/ssl/openssl.c:174:33: error: 'tls13_ciphersuites' undeclared (first use in this function)
+  174 |     SSL_CTX_set_ciphersuites(c, tls13_ciphersuites);
+      |                                 ^~~~~~~~~~~~~~~~~~
+
+Fixes:
+ - http://autobuild.buildroot.org/results/d0fb629b40b05ad828775894fabed878692bb222
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
+[Upstream status: https://github.com/zhaojh329/ssl/pull/1]
+---
+ openssl.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/openssl.c b/openssl.c
+index 8f3d8b7..c42638c 100644
+--- a/src/ssl/openssl.c
++++ b/src/ssl/openssl.c
+@@ -71,14 +71,14 @@
+                 "TLS13-AES256-GCM-SHA384:"		\
+                 ecdhe_aead_ciphers
+ #else
+-# define tls13_ciphersuites	"TLS_CHACHA20_POLY1305_SHA256:"		\
+-                "TLS_AES_128_GCM_SHA256:"		\
+-                "TLS_AES_256_GCM_SHA384"
+-
+ # define top_ciphers							\
+                 ecdhe_aead_ciphers
+ #endif
+ 
++# define tls13_ciphersuites	"TLS_CHACHA20_POLY1305_SHA256:"		\
++                "TLS_AES_128_GCM_SHA256:"		\
++                "TLS_AES_256_GCM_SHA384"
++
+ #define ecdhe_aead_ciphers						\
+                 "ECDHE-ECDSA-CHACHA20-POLY1305:"	\
+                 "ECDHE-ECDSA-AES128-GCM-SHA256:"	\
+-- 
+2.30.2
+