--- a/Make.spec	Thu Jun 28 11:49:35 2018 +0200
+++ b/Make.spec	Thu Jun 28 11:51:52 2018 +0200
@@ -432,6 +432,7 @@
 	Win32OperatingSystem \
 
 UNIX_CLASSES= \
+	UnixSyslogInterface \
 	UnixFileDescriptorHandle \
 	UnixFileHandle \
 	UnixOperatingSystem \
@@ -827,6 +828,7 @@
     $(OUTDIR)Win32OperatingSystem.$(O) \
 
 UNIX_OBJS= \
+    $(OUTDIR)UnixSyslogInterface.$(O) \
     $(OUTDIR)UnixFileDescriptorHandle.$(O) \
     $(OUTDIR)UnixFileHandle.$(O) \
     $(OUTDIR)UnixOperatingSystem.$(O) \