jose: fix build with old compilers

This commit adds two patches to the jose package that fix the build
with old compilers such as gcc 4.7.

Fixes:

  http://autobuild.buildroot.net/results/00d5a4b809922f8fa42c0de9d461c9754d2f8098

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

1 files changed, 71 insertions, 0 deletions

diff --git a/package/jose/0001-lib-hsh.c-rename-hsh-local-variable.patch b/package/jose/0001-lib-hsh.c-rename-hsh-local-variable.patch
new file mode 100644
index 0000000000..0bd259ad8b
--- /dev/null
+++ b/package/jose/0001-lib-hsh.c-rename-hsh-local-variable.patch
@@ -0,0 +1,71 @@
+From 591fc6da944ffc29936e0019b2bc225ddc81dbba Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Mon, 20 Nov 2017 22:48:33 +0100
+Subject: [PATCH] lib/hsh.c: rename hsh local variable
+
+The hsh local variable name conflicts with the function prototype of
+hsh() in hsh.h, causing the following build issues with old compilers
+(gcc 4.7):
+
+hsh.c: In function 'hsh':
+hsh.c:28:21: error: declaration of 'hsh' shadows a global declaration [-Werror=shadow]
+hsh.c:26:1: error: shadowed declaration is here [-Werror=shadow]
+hsh.c: In function 'hsh_buf':
+hsh.c:60:21: error: declaration of 'hsh' shadows a global declaration [-Werror=shadow]
+hsh.c:26:1: error: shadowed declaration is here [-Werror=shadow]
+
+Therefore, we rename this local variable to _hsh.
+
+Submitted-upstream: https://github.com/latchset/jose/pull/51
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ lib/hsh.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/lib/hsh.c b/lib/hsh.c
+index c59a95f..a2a891b 100644
+--- a/lib/hsh.c
++++ b/lib/hsh.c
+@@ -25,7 +25,7 @@
+ json_t *
+ hsh(jose_cfg_t *cfg, const char *alg, const void *data, size_t dlen)
+ {
+-    jose_io_auto_t *hsh = NULL;
++    jose_io_auto_t *_hsh = NULL;
+     jose_io_auto_t *enc = NULL;
+     jose_io_auto_t *buf = NULL;
+     char b[1024] = {};
+@@ -33,8 +33,8 @@ hsh(jose_cfg_t *cfg, const char *alg, const void *data, size_t dlen)
+ 
+     buf = jose_io_buffer(cfg, b, &l);
+     enc = jose_b64_enc_io(buf);
+-    hsh = hsh_io(cfg, alg, enc);
+-    if (!buf || !enc || !hsh || !hsh->feed(hsh, data, dlen) || !hsh->done(hsh))
++    _hsh = hsh_io(cfg, alg, enc);
++    if (!buf || !enc || !_hsh || !_hsh->feed(_hsh, data, dlen) || !_hsh->done(_hsh))
+         return NULL;
+ 
+     return json_stringn(b, l);
+@@ -57,7 +57,7 @@ hsh_buf(jose_cfg_t *cfg, const char *alg,
+         const void *data, size_t dlen, void *hash, size_t hlen)
+ {
+     const jose_hook_alg_t *a = NULL;
+-    jose_io_auto_t *hsh = NULL;
++    jose_io_auto_t *_hsh = NULL;
+     jose_io_auto_t *buf = NULL;
+ 
+     a = jose_hook_alg_find(JOSE_HOOK_ALG_KIND_HASH, alg);
+@@ -71,8 +71,8 @@ hsh_buf(jose_cfg_t *cfg, const char *alg,
+         return SIZE_MAX;
+ 
+     buf = jose_io_buffer(cfg, hash, &hlen);
+-    hsh = a->hash.hsh(a, cfg, buf);
+-    if (!buf || !hsh || !hsh->feed(hsh, data, dlen) || !hsh->done(hsh))
++    _hsh = a->hash.hsh(a, cfg, buf);
++    if (!buf || !_hsh || !_hsh->feed(_hsh, data, dlen) || !_hsh->done(_hsh))
+         return SIZE_MAX;
+ 
+     return hlen;
+-- 
+2.13.6
+