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package/json-c: fix build with gcc 5

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Fix the following build failure with gcc 5 raised since bump to version
0.17 in commit 725580a26e:

/home/thomas/autobuild/instance-2/output-1/build/json-c-0.17/json_pointer.c: In function 'json_pointer_result_get_recursive':
/home/thomas/autobuild/instance-2/output-1/build/json-c-0.17/json_pointer.c:193:25: error: 'idx' may be used uninitialized in this function [-Werror=maybe-uninitialized]
    res->index_in_parent = idx;
                         ^

Fixes:
 - http://autobuild.buildroot.org/results/523b35a979d59121fe4e18c38171792b06233940

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Fabrice Fontaine 2023-11-08 22:52:03 +01:00 committed by Peter Korsgaard
parent 8ed9e2b055
commit b692b285d9
1 changed files with 37 additions and 0 deletions
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37
package/json-c/0001-json_pointer.c-initialize-idx.patch Normal file
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@ -0,0 +1,37 @@
From 7ff7eab603611c65b3110dcb1b0caf5cc68b07a3 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Wed, 8 Nov 2023 22:42:48 +0100
Subject: [PATCH] json_pointer.c: initialize idx
Fix the following build failure with gcc 5:
/home/thomas/autobuild/instance-2/output-1/build/json-c-0.17/json_pointer.c: In function 'json_pointer_result_get_recursive':
/home/thomas/autobuild/instance-2/output-1/build/json-c-0.17/json_pointer.c:193:25: error: 'idx' may be used uninitialized in this function [-Werror=maybe-uninitialized]
res->index_in_parent = idx;
^
Fixes:
- http://autobuild.buildroot.org/results/523b35a979d59121fe4e18c38171792b06233940/
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Upstream: https://github.com/json-c/json-c/pull/839
---
json_pointer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/json_pointer.c b/json_pointer.c
index 89e9e21..0ac8aaa 100644
--- a/json_pointer.c
+++ b/json_pointer.c
@@ -158,7 +158,7 @@ static int json_pointer_result_get_recursive(struct json_object *obj, char *path
struct json_pointer_get_result *res)
{
struct json_object *parent_obj = obj;
- size_t idx;
+ size_t idx = 0;
char *endp;
int rc;
--
2.42.0