Diff below fixes sysutils/syslog-ng build with json-c 0.13. Build tested OK with both json-c 0.12 and json-c 0.13.
Maintainer responded with "That looks fine, but I did not test it." OK? Index: Makefile =================================================================== RCS file: /cvs/ports/sysutils/syslog-ng/Makefile,v retrieving revision 1.62 diff -u -p -r1.62 Makefile --- Makefile 11 Jan 2018 19:27:11 -0000 1.62 +++ Makefile 12 Feb 2018 06:32:00 -0000 @@ -6,7 +6,7 @@ V = 3.12.1 REL = 3.12 DISTNAME = syslog-ng-$V CATEGORIES = sysutils -REVISION = 3 +REVISION = 4 MAINTAINER = Steven Mestdagh <ste...@openbsd.org> Index: patches/patch-modules_json_json-parser_c =================================================================== RCS file: patches/patch-modules_json_json-parser_c diff -N patches/patch-modules_json_json-parser_c --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ patches/patch-modules_json_json-parser_c 12 Feb 2018 06:32:00 -0000 @@ -0,0 +1,28 @@ +$OpenBSD$ + +Fix build with json-c 0.13. +https://github.com/balabit/syslog-ng/pull/1810 + +Index: modules/json/json-parser.c +--- modules/json/json-parser.c.orig ++++ modules/json/json-parser.c +@@ -20,6 +20,8 @@ + * COPYING for details. + */ + ++#define JSON_C_VER_013 (13 << 8) ++ + #include "json-parser.h" + #include "dot-notation.h" + #include "scratch-buffers.h" +@@ -28,7 +30,10 @@ + #include <ctype.h> + + #include <json.h> ++ ++#if (!defined(JSON_C_VERSION_NUM)) || (JSON_C_VERSION_NUM < JSON_C_VER_013) + #include <json_object_private.h> ++#endif + + typedef struct _JSONParser + {
