Backported from upstream commit aab792578b4f081af6ed7b993475bcb2dbca8912 Signed-off-by: Adam Duskett <[email protected]> --- ...rs-when-building-with-a-cpp-compiler.patch | 50 +++++++++++++++++++ meta/recipes-devtools/json-c/json-c_0.19.bb | 1 + 2 files changed, 51 insertions(+) create mode 100644 meta/recipes-devtools/json-c/json-c/0001-fix-defined-but-not-used-errors-when-building-with-a-cpp-compiler.patch
diff --git a/meta/recipes-devtools/json-c/json-c/0001-fix-defined-but-not-used-errors-when-building-with-a-cpp-compiler.patch b/meta/recipes-devtools/json-c/json-c/0001-fix-defined-but-not-used-errors-when-building-with-a-cpp-compiler.patch new file mode 100644 index 0000000000..08e086f8a6 --- /dev/null +++ b/meta/recipes-devtools/json-c/json-c/0001-fix-defined-but-not-used-errors-when-building-with-a-cpp-compiler.patch @@ -0,0 +1,50 @@ +From aab792578b4f081af6ed7b993475bcb2dbca8912 Mon Sep 17 00:00:00 2001 +From: Eric Hawicz <[email protected]> +Date: Sat, 11 Jul 2026 09:28:49 -0400 +Subject: [PATCH] Issue #941: fix "defined but not used" errors when building + with a c++ compiler. + + +Upstream-Status: Backport [https://github.com/json-c/json-c/commit/aab792578b4f081af6ed7b993475bcb2dbca8912] +Signed-off-by: Eric Hawicz <[email protected]> +Signed-off-by: Adam Duskett <[email protected]> +--- + json_object.h | 4 ++-- + linkhash.h | 2 +- + 2 files changed, 3 insertions(+), 3 deletions(-) + +diff --git a/json_object.h b/json_object.h +index 7edb63d4f8..2cd94906e7 100644 +--- a/json_object.h ++++ b/json_object.h +@@ -488,7 +488,7 @@ JSON_EXPORT void json_object_object_del(struct json_object *obj, const char *key + * @param val the local name for the json_object* object variable defined in + * the body + */ +-#if defined(__GNUC__) && !defined(__STRICT_ANSI__) && (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) ++#if defined(__GNUC__) && !defined(__STRICT_ANSI__) && (defined(__cplusplus) || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)) + + #define json_object_object_foreach(obj, key, val) \ + char *key = NULL; \ +@@ -520,7 +520,7 @@ JSON_EXPORT void json_object_object_del(struct json_object *obj, const char *key + : 0); \ + entry##key = entry_next##key) + +-#endif /* defined(__GNUC__) && !defined(__STRICT_ANSI__) && (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) */ ++#endif + + /** Iterate through all keys and values of an object (ANSI C Safe) + * @param obj the json_object instance +diff --git a/linkhash.h b/linkhash.h +index 5ad17cf2d2..48fb7c0b0a 100644 +--- a/linkhash.h ++++ b/linkhash.h +@@ -345,7 +345,7 @@ int lh_table_resize(struct lh_table *t, int new_size); + /** + * @deprecated Don't use this outside of linkhash.h: + */ +-#if !defined (__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) ++#if !defined(__cplusplus) && (!defined (__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)) + /* C89 compilers like VS2010 can't handle inline funcs, so skip it there, + note: this also applies to -std=c89 in GCC! */ + #define _LH_INLINE diff --git a/meta/recipes-devtools/json-c/json-c_0.19.bb b/meta/recipes-devtools/json-c/json-c_0.19.bb index e42d4f6f56..9271d56326 100644 --- a/meta/recipes-devtools/json-c/json-c_0.19.bb +++ b/meta/recipes-devtools/json-c/json-c_0.19.bb @@ -7,6 +7,7 @@ LICENSE = "MIT" LIC_FILES_CHKSUM = "file://COPYING;md5=de54b60fbbc35123ba193fea8ee216f2" SRC_URI = "https://s3.amazonaws.com/json-c_releases/releases/${BP}.tar.gz \ + file://0001-fix-defined-but-not-used-errors-when-building-with-a-cpp-compiler.patch \ file://run-ptest \ " SRC_URI[sha256sum] = "37ad0249902e301bd9052bf712e511fcc6acff4ecaad4b5900aad9ce564e26de" -- 2.55.0
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