diff --git a/Makefile.am b/Makefile.am
index ed3b54b..c0093d0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -14,7 +14,7 @@ lmtcpsrv_la_SOURCES = \
 	tcps_sess.h \
 	tcpsrv.c \
 	tcpsrv.h
-lmtcpsrv_la_CPPFLAGS = $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+lmtcpsrv_la_CPPFLAGS = $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 lmtcpsrv_la_LDFLAGS = -module -avoid-version
 lmtcpsrv_la_LIBADD = 
 
diff --git a/action.c b/action.c
index 259fb66..6b52d70 100644
--- a/action.c
+++ b/action.c
@@ -98,7 +98,7 @@
 #include <strings.h>
 #include <time.h>
 #include <errno.h>
-#include <json/json.h>
+#include <json.h>
 
 #include "dirty.h"
 #include "template.h"
diff --git a/config.h.in b/config.h.in
index 3682381..8c504b5 100644
--- a/config.h.in
+++ b/config.h.in
@@ -349,9 +349,6 @@
 /* Defined if debug mode is disabled. */
 #undef NDEBUG
 
-/* Define to 1 if your C compiler doesn't accept -c and -o together. */
-#undef NO_MINUS_C_MINUS_O
-
 /* Indicator for a BSD OS */
 #undef OS_BSD
 
diff --git a/configure.ac b/configure.ac
index bb0de0c..acf2cbe 100644
--- a/configure.ac
+++ b/configure.ac
@@ -33,7 +33,7 @@ PKG_PROG_PKG_CONFIG
 
 # modules we require
 PKG_CHECK_MODULES(LIBESTR, libestr >= 0.1.5)
-PKG_CHECK_MODULES([JSON_C], [json])
+PKG_CHECK_MODULES([JSON_C], [json-c])
 
 case "${host}" in
   *-*-linux*)
diff --git a/grammar/Makefile.am b/grammar/Makefile.am
index d231bb4..b5476e7 100644
--- a/grammar/Makefile.am
+++ b/grammar/Makefile.am
@@ -11,7 +11,7 @@ libgrammar_la_SOURCES = \
 	rainerscript.h \
 	parserif.h \
 	grammar.h
-libgrammar_la_CPPFLAGS =  $(RSRT_CFLAGS)
+libgrammar_la_CPPFLAGS =  $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 
 #testdriver_SOURCES = testdriver.c libgrammar.la
 #testdriver_CPPFLAGS =  $(RSRT_CFLAGS)
diff --git a/plugins/imdiag/Makefile.am b/plugins/imdiag/Makefile.am
index 33e86e9..b8d21ae 100644
--- a/plugins/imdiag/Makefile.am
+++ b/plugins/imdiag/Makefile.am
@@ -1,6 +1,6 @@
 pkglib_LTLIBRARIES = imdiag.la
 
 imdiag_la_SOURCES = imdiag.c
-imdiag_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+imdiag_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 imdiag_la_LDFLAGS = -module -avoid-version
 imdiag_la_LIBADD = 
diff --git a/plugins/imfile/Makefile.am b/plugins/imfile/Makefile.am
index 551639b..3c70868 100644
--- a/plugins/imfile/Makefile.am
+++ b/plugins/imfile/Makefile.am
@@ -1,6 +1,6 @@
 pkglib_LTLIBRARIES = imfile.la
 
 imfile_la_SOURCES = imfile.c
-imfile_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+imfile_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 imfile_la_LDFLAGS = -module -avoid-version
 imfile_la_LIBADD = 
diff --git a/plugins/imklog/Makefile.am b/plugins/imklog/Makefile.am
index 7d0d37c..ae84737 100644
--- a/plugins/imklog/Makefile.am
+++ b/plugins/imklog/Makefile.am
@@ -10,6 +10,6 @@ if ENABLE_IMKLOG_LINUX
 imklog_la_SOURCES += bsd.c
 endif
 
-imklog_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+imklog_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 imklog_la_LDFLAGS = -module -avoid-version
 imklog_la_LIBADD = 
diff --git a/plugins/immark/Makefile.am b/plugins/immark/Makefile.am
index 6d8ed24..782dacc 100644
--- a/plugins/immark/Makefile.am
+++ b/plugins/immark/Makefile.am
@@ -1,6 +1,6 @@
 pkglib_LTLIBRARIES = immark.la
 
 immark_la_SOURCES = immark.c immark.h
-immark_la_CPPFLAGS = $(RSRT_CFLAGS) -I$(top_srcdir) $(PTHREADS_CFLAGS)
+immark_la_CPPFLAGS = $(RSRT_CFLAGS) -I$(top_srcdir) $(PTHREADS_CFLAGS) $(JSON_C_CFLAGS)
 immark_la_LDFLAGS = -module -avoid-version
 immark_la_LIBADD = 
diff --git a/plugins/imtcp/Makefile.am b/plugins/imtcp/Makefile.am
index 2665353..24ec856 100644
--- a/plugins/imtcp/Makefile.am
+++ b/plugins/imtcp/Makefile.am
@@ -1,6 +1,6 @@
 pkglib_LTLIBRARIES = imtcp.la
 
 imtcp_la_SOURCES = imtcp.c
-imtcp_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+imtcp_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 imtcp_la_LDFLAGS = -module -avoid-version
 imtcp_la_LIBADD = 
diff --git a/plugins/imudp/Makefile.am b/plugins/imudp/Makefile.am
index bc64b8c..8409f86 100644
--- a/plugins/imudp/Makefile.am
+++ b/plugins/imudp/Makefile.am
@@ -1,6 +1,6 @@
 pkglib_LTLIBRARIES = imudp.la
 
 imudp_la_SOURCES = imudp.c
-imudp_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+imudp_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 imudp_la_LDFLAGS = -module -avoid-version
 imudp_la_LIBADD = $(IMUDP_LIBS)
diff --git a/plugins/imuxsock/Makefile.am b/plugins/imuxsock/Makefile.am
index 28f9f9e..3db3a58 100644
--- a/plugins/imuxsock/Makefile.am
+++ b/plugins/imuxsock/Makefile.am
@@ -1,6 +1,6 @@
 pkglib_LTLIBRARIES = imuxsock.la
 
 imuxsock_la_SOURCES = imuxsock.c
-imuxsock_la_CPPFLAGS = -DSD_EXPORT_SYMBOLS -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+imuxsock_la_CPPFLAGS = -DSD_EXPORT_SYMBOLS -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 imuxsock_la_LDFLAGS = -module -avoid-version
 imuxsock_la_LIBADD = $(RSRT_LIBS)
diff --git a/plugins/ommail/Makefile.am b/plugins/ommail/Makefile.am
index 97c9296..6a178e0 100644
--- a/plugins/ommail/Makefile.am
+++ b/plugins/ommail/Makefile.am
@@ -1,6 +1,6 @@
 pkglib_LTLIBRARIES = ommail.la
 
 ommail_la_SOURCES = ommail.c
-ommail_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+ommail_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 ommail_la_LDFLAGS = -module -avoid-version
 ommail_la_LIBADD = 
diff --git a/plugins/ommysql/Makefile.am b/plugins/ommysql/Makefile.am
index e253b9d..f2336d0 100644
--- a/plugins/ommysql/Makefile.am
+++ b/plugins/ommysql/Makefile.am
@@ -1,7 +1,7 @@
 pkglib_LTLIBRARIES = ommysql.la
 
 ommysql_la_SOURCES = ommysql.c ommysql.h
-ommysql_la_CPPFLAGS =  $(RSRT_CFLAGS) $(MYSQL_CFLAGS) $(PTHREADS_CFLAGS)
+ommysql_la_CPPFLAGS =  $(RSRT_CFLAGS) $(MYSQL_CFLAGS) $(PTHREADS_CFLAGS) $(JSON_C_CFLAGS)
 ommysql_la_LDFLAGS = -module -avoid-version
 ommysql_la_LIBADD = $(MYSQL_LIBS)
 
diff --git a/plugins/ompgsql/Makefile.am b/plugins/ompgsql/Makefile.am
index 607239c..664d3d1 100644
--- a/plugins/ompgsql/Makefile.am
+++ b/plugins/ompgsql/Makefile.am
@@ -1,7 +1,7 @@
 pkglib_LTLIBRARIES = ompgsql.la
 
 ompgsql_la_SOURCES = ompgsql.c ompgsql.h
-ompgsql_la_CPPFLAGS = -I$(top_srcdir) $(PGSQL_CFLAGS) $(RSRT_CFLAGS)
+ompgsql_la_CPPFLAGS = -I$(top_srcdir) $(PGSQL_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 ompgsql_la_LDFLAGS = -module -avoid-version
 ompgsql_la_LIBADD = $(PGSQL_LIBS)
 
diff --git a/plugins/omprog/Makefile.am b/plugins/omprog/Makefile.am
index 63fe09b..2d7e89b 100644
--- a/plugins/omprog/Makefile.am
+++ b/plugins/omprog/Makefile.am
@@ -1,7 +1,7 @@
 pkglib_LTLIBRARIES = omprog.la
 
 omprog_la_SOURCES = omprog.c
-omprog_la_CPPFLAGS =  $(RSRT_CFLAGS) $(PTHREADS_CFLAGS)
+omprog_la_CPPFLAGS =  $(RSRT_CFLAGS) $(PTHREADS_CFLAGS) $(JSON_C_CFLAGS)
 omprog_la_LDFLAGS = -module -avoid-version
 omprog_la_LIBADD = 
 
diff --git a/plugins/omruleset/Makefile.am b/plugins/omruleset/Makefile.am
index fdd91a6..c927dca 100644
--- a/plugins/omruleset/Makefile.am
+++ b/plugins/omruleset/Makefile.am
@@ -1,7 +1,7 @@
 pkglib_LTLIBRARIES = omruleset.la
 
 omruleset_la_SOURCES = omruleset.c
-omruleset_la_CPPFLAGS =  $(RSRT_CFLAGS) $(PTHREADS_CFLAGS)
+omruleset_la_CPPFLAGS =  $(RSRT_CFLAGS) $(PTHREADS_CFLAGS) $(JSON_C_CFLAGS)
 omruleset_la_LDFLAGS = -module -avoid-version
 omruleset_la_LIBADD = 
 
diff --git a/plugins/omsnmp/Makefile.am b/plugins/omsnmp/Makefile.am
index f75fb09..12c3083 100644
--- a/plugins/omsnmp/Makefile.am
+++ b/plugins/omsnmp/Makefile.am
@@ -1,6 +1,6 @@
 pkglib_LTLIBRARIES = omsnmp.la
 
 omsnmp_la_SOURCES = omsnmp.c omsnmp.h
-omsnmp_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+omsnmp_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 omsnmp_la_LDFLAGS = -module -avoid-version
 omsnmp_la_LIBADD =  $(SNMP_LIBS)
diff --git a/plugins/omstdout/Makefile.am b/plugins/omstdout/Makefile.am
index 9f5d497..c4d9bcb 100644
--- a/plugins/omstdout/Makefile.am
+++ b/plugins/omstdout/Makefile.am
@@ -1,7 +1,7 @@
 pkglib_LTLIBRARIES = omstdout.la
 
 omstdout_la_SOURCES = omstdout.c
-omstdout_la_CPPFLAGS =  $(RSRT_CFLAGS) $(PTHREADS_CFLAGS)
+omstdout_la_CPPFLAGS =  $(RSRT_CFLAGS) $(PTHREADS_CFLAGS) $(JSON_C_CFLAGS)
 omstdout_la_LDFLAGS = -module -avoid-version
 omstdout_la_LIBADD = 
 
diff --git a/plugins/omtesting/Makefile.am b/plugins/omtesting/Makefile.am
index 4700e1e..2ee9017 100644
--- a/plugins/omtesting/Makefile.am
+++ b/plugins/omtesting/Makefile.am
@@ -1,6 +1,6 @@
 pkglib_LTLIBRARIES = omtesting.la
 
 omtesting_la_SOURCES = omtesting.c
-omtesting_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+omtesting_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 omtesting_la_LDFLAGS = -module -avoid-version
 omtesting_la_LIBADD = 
diff --git a/plugins/omudpspoof/Makefile.am b/plugins/omudpspoof/Makefile.am
index 79c495a..ff3c213 100644
--- a/plugins/omudpspoof/Makefile.am
+++ b/plugins/omudpspoof/Makefile.am
@@ -1,7 +1,7 @@
 pkglib_LTLIBRARIES = omudpspoof.la
 
 omudpspoof_la_SOURCES = omudpspoof.c
-omudpspoof_la_CPPFLAGS =  $(RSRT_CFLAGS) $(PTHREADS_CFLAGS) $(UDPSPOOF_CFLAGS)
+omudpspoof_la_CPPFLAGS =  $(RSRT_CFLAGS) $(PTHREADS_CFLAGS) $(UDPSPOOF_CFLAGS) $(JSON_C_CFLAGS)
 omudpspoof_la_LDFLAGS = -module -avoid-version
 omudpspoof_la_LIBADD = $(UDPSPOOF_LIBS)
 
diff --git a/runtime/Makefile.am b/runtime/Makefile.am
index dea06fe..99b0022 100644
--- a/runtime/Makefile.am
+++ b/runtime/Makefile.am
@@ -97,9 +97,9 @@ librsyslog_la_SOURCES = \
 #
 
 if WITH_MODDIRS
-librsyslog_la_CPPFLAGS = -DSD_EXPORT_SYMBOLS -D_PATH_MODDIR=\"$(pkglibdir)/:$(moddirs)\" $(PTHREADS_CFLAGS) -I\$(top_srcdir)/tools
+librsyslog_la_CPPFLAGS = -DSD_EXPORT_SYMBOLS -D_PATH_MODDIR=\"$(pkglibdir)/:$(moddirs)\" $(PTHREADS_CFLAGS) $(JSON_C_CFLAGS) -I\$(top_srcdir)/tools
 else
-librsyslog_la_CPPFLAGS = -DSD_EXPORT_SYMBOLS -D_PATH_MODDIR=\"$(pkglibdir)/\" -I$(top_srcdir) $(PTHREADS_CFLAGS) -I\$(top_srcdir)/tools -I\$(top_srcdir)/grammar
+librsyslog_la_CPPFLAGS = -DSD_EXPORT_SYMBOLS -D_PATH_MODDIR=\"$(pkglibdir)/\" -I$(top_srcdir) $(PTHREADS_CFLAGS) $(JSON_C_CFLAGS) -I\$(top_srcdir)/tools -I\$(top_srcdir)/grammar
 endif
 #librsyslog_la_LDFLAGS = -module -avoid-version
 librsyslog_la_LIBADD =  $(DL_LIBS) $(RT_LIBS)
@@ -148,7 +148,7 @@ lmnetstrms_la_LIBADD =
 # generic stream server framework
 pkglib_LTLIBRARIES += lmstrmsrv.la
 lmstrmsrv_la_SOURCES = strmsrv.c strmsrv.h strms_sess.c strms_sess.h
-lmstrmsrv_la_CPPFLAGS = $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+lmstrmsrv_la_CPPFLAGS = $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 lmstrmsrv_la_LDFLAGS = -module -avoid-version
 lmstrmsrv_la_LIBADD =
 
@@ -159,7 +159,7 @@ pkglib_LTLIBRARIES += lmnsd_ptcp.la
 lmnsd_ptcp_la_SOURCES = nsd_ptcp.c nsd_ptcp.h \
 		  	nsdsel_ptcp.c nsdsel_ptcp.h \
 			nsdpoll_ptcp.c nsdpoll_ptcp.h
-lmnsd_ptcp_la_CPPFLAGS = $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+lmnsd_ptcp_la_CPPFLAGS = $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 lmnsd_ptcp_la_LDFLAGS = -module -avoid-version
 lmnsd_ptcp_la_LIBADD =
 endif # if ENABLE_INET
@@ -181,10 +181,10 @@ endif
 if ENABLE_LIBGCRYPT
    noinst_LTLIBRARIES += libgcry.la
    libgcry_la_SOURCES = libgcry.c libgcry_common.c libgcry.h
-   libgcry_la_CPPFLAGS = $(RSRT_CFLAGS) $(LIBGCRYPT_CFLAGS)
+   libgcry_la_CPPFLAGS = $(RSRT_CFLAGS) $(LIBGCRYPT_CFLAGS) $(JSON_C_CFLAGS)
    pkglib_LTLIBRARIES += lmcry_gcry.la
    lmcry_gcry_la_SOURCES = lmcry_gcry.c lmcry_gcry.h
-   lmcry_gcry_la_CPPFLAGS = $(RSRT_CFLAGS) $(LIBGCRYPT_CFLAGS)
+   lmcry_gcry_la_CPPFLAGS = $(RSRT_CFLAGS) $(LIBGCRYPT_CFLAGS) $(JSON_C_CFLAGS)
    lmcry_gcry_la_LDFLAGS = -module -avoid-version
    lmcry_gcry_la_LIBADD = libgcry.la $(LIBGCRYPT_LIBS)
 endif
diff --git a/runtime/msg.c b/runtime/msg.c
index a5c5281..4ca104e 100644
--- a/runtime/msg.c
+++ b/runtime/msg.c
@@ -41,9 +41,7 @@
 #endif
 #include <netdb.h>
 #include <libestr.h>
-#include <json/json.h>
-/* For struct json_object_iter, should not be necessary in future versions */
-#include <json/json_object_private.h>
+#include <json.h>
 #if HAVE_MALLOC_H
 #  include <malloc.h>
 #endif
diff --git a/runtime/msg.h b/runtime/msg.h
index 6faf066..ac220b6 100644
--- a/runtime/msg.h
+++ b/runtime/msg.h
@@ -30,7 +30,7 @@
 
 #include <pthread.h>
 #include <libestr.h>
-#include <json/json.h>
+#include <json.h>
 #include "obj.h"
 #include "syslogd-types.h"
 #include "template.h"
diff --git a/template.c b/template.c
index b675255..9cefa05 100644
--- a/template.c
+++ b/template.c
@@ -34,7 +34,7 @@
 #include <string.h>
 #include <ctype.h>
 #include <assert.h>
-#include <json/json.h>
+#include <json.h>
 #include "stringbuf.h"
 #include "syslogd-types.h"
 #include "template.h"
diff --git a/template.h b/template.h
index 318db6f..87a1c77 100644
--- a/template.h
+++ b/template.h
@@ -30,7 +30,7 @@
 #ifndef	TEMPLATE_H_INCLUDED
 #define	TEMPLATE_H_INCLUDED 1
 
-#include <json/json.h>
+#include <json.h>
 #include <libestr.h>
 #include "regexp.h"
 #include "stringbuf.h"
diff --git a/tools/Makefile.am b/tools/Makefile.am
index 6832494..76c13cc 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -38,7 +38,7 @@ rsyslogd_SOURCES = \
 	pidfile.h \
 	\
 	../dirty.h
-rsyslogd_CPPFLAGS =  $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
+rsyslogd_CPPFLAGS =  $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) $(JSON_C_CFLAGS)
 # note: it looks like librsyslog.la must be explicitely given on LDDADD,
 # otherwise dependencies are not properly calculated (resulting in a 
 # potentially incomplete build, a problem we had several times...)