fix ubuntu 16.10

Gabriele Contini

2020-02-10 70e546037a91cf729dc2838247b8aa989858533a

 src/library/base/logger.h

@@ -1,8 +1,9 @@
#ifndef logger_INCLUDED
#define logger_INCLUDED

#ifndef LOG_ENABLED
#ifndef LOG_DISABLED
#include <errno.h>
#include <string.h>
#ifdef __cplusplus
extern "C" {
#endif