I had syslog-ng 3.5.3 operational without an issue. I wanted to implement the smtp driver so installed libesmtp and then re-compiled both enventlog and syslog-ng. The only difference was my configure arguments for syslog-ng, which was configure --with-libesmtp=/usr/local/lib. Everything looked good afterwards.
syslog-ng Open Source Edition 3.5.3 configured
Compiler options:
compiler : gcc -std=gnu99
compiler options : -g -O2 -Wall -pthread -pthread -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include -I/usr/local/include/eventlog -I$(top_srcdir)/lib/ivykis/src/include -I$(top_builddir)/lib/ivykis/src/include -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
linker flags :
prefix : /usr/local
linking mode : dynamic
embedded crypto : no
__thread keyword : yes
Submodules:
ivykis : internal
libmongo-client : internal
librabbitmq : internal
Features:
Debug symbols : no
GCC profiling : no
Memtrace : no
IPV6 support : yes
spoof-source support : no
tcp-wrapper support : no
Linux capability support : no
PCRE support : yes
Env wrapper support : no
systemd support : no (unit dir: none)
Modules:
Module search path : /usr/local/lib/syslog-ng
Sun STREAMS support (module): no
SSL support (module) : yes
SQL support (module) : no
PACCT module (EXPERIMENTAL) : no
MongoDB destination (module): yes
JSON support (module) : no
SMTP support (module) : yes
AMQP destination (module) : yes
STOMP destination (module) : yes
GEOIP support (module) : no
Redis support (module) : no
Yet, now when I attempt to start syslog-ng I receive the following error.
However, the file looks good also.