From Panu Matilainen: update the code to work with rpm-4.9
I've applied this patch also upstream.

diff -up net-snmp-5.6.1/configure.rpm49 net-snmp-5.6.1/configure
--- net-snmp-5.6.1/configure.rpm49	2011-01-14 15:42:47.000000000 +0200
+++ net-snmp-5.6.1/configure	2011-01-14 15:43:09.000000000 +0200
@@ -27418,9 +27418,9 @@ $as_echo "$netsnmp_cv_func_rpmdbOpen__rp
 
   # now check for rpm using the appropriate libraries.
 
- { $as_echo "$as_me:$LINENO: checking for library containing rpmGetFilesystemList" >&5
-$as_echo_n "checking for library containing rpmGetFilesystemList... " >&6; }
-if test "${netsnmp_cv_func_rpmGetFilesystemList__rpmlibs+set}" = set; then
+ { $as_echo "$as_me:$LINENO: checking for library containing rpmReadConfigFiles" >&5
+$as_echo_n "checking for library containing rpmReadConfigFiles... " >&6; }
+if test "${netsnmp_cv_func_rpmReadConfigFiles__rpmlibs+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
   netsnmp_func_search_save_LIBS="$LIBS"
@@ -27441,11 +27441,11 @@ cat >>conftest.$ac_ext <<_ACEOF
 #ifdef __cplusplus
 extern "C"
 #endif
-char rpmGetFilesystemList ();
+char rpmReadConfigFiles ();
 int
 main ()
 {
-return rpmGetFilesystemList ();
+return rpmReadConfigFiles ();
   ;
   return 0;
 }
@@ -27491,11 +27491,11 @@ cat >>conftest.$ac_ext <<_ACEOF
 #ifdef __cplusplus
 extern "C"
 #endif
-char rpmGetFilesystemList ();
+char rpmReadConfigFiles ();
 int
 main ()
 {
-return rpmGetFilesystemList ();
+return rpmReadConfigFiles ();
   ;
   return 0;
 }
@@ -27540,12 +27540,12 @@ rm -rf conftest.dSYM
 rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
       conftest$ac_exeext conftest.$ac_ext
      LIBS="${netsnmp_func_search_save_LIBS}"
-     netsnmp_cv_func_rpmGetFilesystemList__rpmlibs="${netsnmp_result}"
+     netsnmp_cv_func_rpmReadConfigFiles__rpmlibs="${netsnmp_result}"
 fi
-{ $as_echo "$as_me:$LINENO: result: $netsnmp_cv_func_rpmGetFilesystemList__rpmlibs" >&5
-$as_echo "$netsnmp_cv_func_rpmGetFilesystemList__rpmlibs" >&6; }
- if test "${netsnmp_cv_func_rpmGetFilesystemList__rpmlibs}" != "no" ; then
-    if test "${netsnmp_cv_func_rpmGetFilesystemList__rpmlibs}" != "none required" ; then
+{ $as_echo "$as_me:$LINENO: result: $netsnmp_cv_func_rpmReadConfigFiles__rpmlibs" >&5
+$as_echo "$netsnmp_cv_func_rpmReadConfigFiles__rpmlibs" >&6; }
+ if test "${netsnmp_cv_func_rpmReadConfigFiles__rpmlibs}" != "no" ; then
+    if test "${netsnmp_cv_func_rpmReadConfigFiles__rpmlibs}" != "none required" ; then
        _rpmlibs="${netsnmp_result} ${netsnmp_target_val}"
     fi