sarg-2.3.8 was released 2014-02-07
log.c: In function ‘main’: log.c:1506:4: error: format ‘%li’ expects argument of type ‘long int’, but argument 7 has type ‘long long int’ [-Werror=format] log.c:1513:5: error: format ‘%li’ expects argument of type ‘long int’, but argument 8 has type ‘long long int’ [-Werror=format] log.c:1564:5: error: format ‘%li’ expects argument of type ‘long int’, but argument 2 has type ‘long long int’ [-Werror=format] Looks like it needs some work.
It's in the tree. Thanks for the report.