Hi Daniel
Rebuild trigered by issue on opensuse infrastructure.
But last rebuild I also tried build `jansson` module on `CentOS 6` and get this
error
```
[ 246s] make[3]: `libkamailio_ims.so.0.1' is up to date.
[ 246s] LD (gcc) [M ims_ipsec_pcscf.so] ims_ipsec_pcscf.so
[ 246s] CC (gcc) [M jansson.so] jansson_funcs.o
[ 246s] CC (gcc) [M jansson.so] jansson_mod.o
[ 246s] CC (gcc) [M jansson.so] jansson_path.o
[ 246s] CC (gcc) [M jansson.so] jansson_utils.o
[ 246s] LD (gcc) [M jansson.so] jansson.so
[ 246s] CC (gcc) [M acc_json.so] acc_json_mod.o
[ 246s] LD (gcc) [M acc_json.so] acc_json.so
[ 247s] Package libevent was not found in the pkg-config search path.
[ 247s] Perhaps you should add the directory containing `libevent.pc'
[ 247s] to the PKG_CONFIG_PATH environment variable
[ 247s] No package 'libevent' found
[ 247s] Package libevent was not found in the pkg-config search path.
[ 247s] Perhaps you should add the directory containing `libevent.pc'
[ 247s] to the PKG_CONFIG_PATH environment variable
[ 247s] No package 'libevent' found
[ 247s] Package libevent was not found in the pkg-config search path.
[ 247s] Perhaps you should add the directory containing `libevent.pc'
[ 247s] to the PKG_CONFIG_PATH environment variable
[ 247s] No package 'libevent' found
[ 247s] Package libevent was not found in the pkg-config search path.
[ 247s] Perhaps you should add the directory containing `libevent.pc'
[ 247s] to the PKG_CONFIG_PATH environment variable
[ 247s] No package 'libevent' found
[ 247s] Package libevent was not found in the pkg-config search path.
[ 247s] Perhaps you should add the directory containing `libevent.pc'
[ 247s] to the PKG_CONFIG_PATH environment variable
[ 247s] No package 'libevent' found
[ 247s] Package libevent was not found in the pkg-config search path.
[ 247s] Perhaps you should add the directory containing `libevent.pc'
[ 247s] to the PKG_CONFIG_PATH environment variable
[ 247s] No package 'libevent' found
[ 247s] CC (gcc) [M janssonrpcc.so] janssonrpc_connect.o
[ 247s] In file included from janssonrpc_connect.c:40:
[ 247s] netstring.h:27:32: warning: event2/bufferevent.h: No such file or
directory
[ 247s] In file included from janssonrpc_io.h:31,
[ 247s] from janssonrpc_request.h:26,
[ 247s] from janssonrpc_connect.c:42:
[ 247s] janssonrpc_server.h:29:27: warning: event2/buffer.h: No such file or
directory
[ 247s] janssonrpc_connect.c: In function 'bev_disconnect':
[ 247s] janssonrpc_connect.c:59: warning: implicit declaration of function
'bufferevent_get_enabled'
[ 247s] janssonrpc_connect.c: In function 'server_backoff_cb':
[ 247s] janssonrpc_connect.c:143: warning: implicit declaration of function
'event_free'
[ 247s] janssonrpc_connect.c: In function 'wait_server_backoff':
[ 247s] janssonrpc_connect.c:175: warning: implicit declaration of function
'evtimer_new'
[ 247s] janssonrpc_connect.c:175: warning: assignment makes pointer from
integer without a cast
[ 247s] janssonrpc_connect.c: In function 'bev_connect_cb':
[ 247s] janssonrpc_connect.c:273: error: 'BEV_EVENT_ERROR' undeclared (first
use in this function)
[ 247s] janssonrpc_connect.c:273: error: (Each undeclared identifier is
reported only once
[ 247s] janssonrpc_connect.c:273: error: for each function it appears in.)
[ 247s] janssonrpc_connect.c:273: error: 'BEV_EVENT_EOF' undeclared (first use
in this function)
[ 247s] janssonrpc_connect.c:276: warning: implicit declaration of function
'bufferevent_socket_get_dns_error'
[ 247s] janssonrpc_connect.c:278: warning: implicit declaration of function
'evutil_gai_strerror'
[ 247s] janssonrpc_connect.c:278: warning: format '%s' expects type 'char *',
but argument 12 has type 'int'
[ 247s] janssonrpc_connect.c:278: warning: format '%s' expects type 'char *',
but argument 10 has type 'int'
[ 247s] janssonrpc_connect.c:283: error: 'BEV_EVENT_CONNECTED' undeclared
(first use in this function)
[ 247s] janssonrpc_connect.c: In function 'bev_connect':
[ 247s] janssonrpc_connect.c:362: warning: implicit declaration of function
'bufferevent_socket_new'
[ 247s] janssonrpc_connect.c:365: error: 'BEV_OPT_CLOSE_ON_FREE' undeclared
(first use in this function)
[ 247s] janssonrpc_connect.c:379: warning: implicit declaration of function
'bufferevent_socket_connect_hostname'
[ 247s] make[2]: *** [janssonrpc_connect.o] Error 1
[ 247s] make[1]: *** [modules] Error 1
[ 247s] make[1]: Leaving directory
`/home/abuild/rpmbuild/BUILD/kamailio-5.3.0-dev5/src'
[ 247s] make: *** [every-module] Error 2
[ 247s] error: Bad exit status from /var/tmp/rpm-tmp.02K8aC (%build)
[ 247s]
```
I checked presence of `libevent.pc` and not found on CentOS 6. `libevent-devel`
package is installed on system.
```sh
[root@628f362463dd /]# rpm -qa | grep libevent-devel
libevent-devel-1.4.13-4.el6.x86_64
[root@628f362463dd /]# find / -name libevent.pc
[root@628f362463dd /]#
```
Also looked for `bufferevent.h`. This file also not exist on system.
```sh
[root@628f362463dd /]# find / -name bufferevent.h
[root@628f362463dd /]#
```
Then i checked `libevent-devel` version on CentOS 7. Here is used 2.0.21.
```
[root@027c165a1484 /]# rpm -qa | grep libevent-devel
libevent-devel-2.0.21-4.el7.x86_64
```
Think we cannot build jansson module on CentOS 6 with
`libevent-devel-1.4.13-4`.
If you not want add support of `libevent-devel-1.4.13-4` into kamailio, then
please close ticket.
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