diff --git a/make/defs.mk b/make/defs.mk
index 315081b9..f1620dfc 100644
--- a/make/defs.mk
+++ b/make/defs.mk
@@ -109,8 +109,8 @@ else
 endif
 endif
 
-CFLAGS                += -Wall -Wno-unused-value -fexceptions
-CPPFLAGS              += -Wall -Wno-unused-value
+CFLAGS                += -D_FILE_OFFSET_BITS=64 -Wall -Wno-unused-value -fexceptions
+CPPFLAGS              += -D_FILE_OFFSET_BITS=64 -Wall -Wno-unused-value
 LDFLAGS               += -Wall
 
 ifeq ($(CATCH_ONLY_YERROR),true)
@@ -816,6 +816,18 @@ INCLUDE                   += -I$(FEEDFS_FMEMFS_DIR)/include
 LIBFLAGS                  += -L$(FEEDFS_FMEMFS_DIR)/lib -lfeedfs-fmemfs
 endif
 
+ifeq ($(USE_FEEDFS_SYSLOG),true)
+FEEDFS_SYSLOG_DIR           = $(firstword $(wildcard $(CVS_PROJ_DIR)/feedfs-syslog /opt/$(FLAVOUR_PATH_PREFIX)feedfs-syslog))
+FEEDFS_SYSLOG_VERSION       = $(call version,$(FEEDFS_SYSLOG_DIR))
+RPM_REQUIRES_RUN          += $(FLAVOUR_PREFIX)feedfs-syslog-run = $(FEEDFS_SYSLOG_VERSION)
+RPM_REQUIRES_DEVEL        += $(FLAVOUR_PREFIX)feedfs-syslog-devel = $(FEEDFS_SYSLOG_VERSION)
+USE_FEEDFS                 = true
+# no build-time linkage necessary, no headers exported
+LD_LIB_PATH               += $(FEEDFS_SYSLOG_DIR)/lib
+INCLUDE                   += -I$(FEEDFS_SYSLOG_DIR)/include
+LIBFLAGS                  += -L$(FEEDFS_SYSLOG_DIR)/lib -lfeedfs-syslog
+endif
+
 ifeq ($(USE_FEEDFS_OBJECTS),true)
 FEEDFS_OBJECTS_DIR         = $(firstword $(wildcard $(CVS_PROJ_DIR)/feedfs-objects /opt/$(FLAVOUR_PATH_PREFIX)feedfs-objects))
 FEEDFS_OBJECTS_VERSION     = $(call version,$(FEEDFS_OBJECTS_DIR))