Added snmp.h.

include/Makefile.in

diff --git a/include/Makefile.in b/include/Makefile.in
index 5e7bf92..849a668 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -220,6 +220,7 @@
 	shlobj.h \
 	shlwapi.h \
 	sipbase.h \
+	snmp.h \
 	sql.h \
 	sqlext.h \
 	sqltypes.h \