--- dcc-1.3.140/configure       2011-01-21 21:21:12.000000000 -0500
+++ dcc-1.3.140-KAM/configure   2011-11-17 08:55:13.107273139 -0500
@@ -3147,6 +3147,14 @@
            SENDMAIL_OBJ_EVAL=$SENDMAIL_OBJ
            SENDMAIL_LIB=$SENDMAIL_OBJ/libmilter.so
        fi
+        # Some 64-bit distributions use /usr/lib64 for their libraries on 64-bit installs.
+        if test -f /usr/lib64/libmilter.so; then
+            SENDMAIL=/usr/include
+            SENDMAIL_EVAL=$SENDMAIL
+            SENDMAIL_OBJ=/usr/lib64
+            SENDMAIL_OBJ_EVAL=$SENDMAIL_OBJ
+            SENDMAIL_LIB=$SENDMAIL_OBJ/libmilter.so
+        fi
        if test ! -d $SENDMAIL_EVAL                                     \
                -a -f /usr/lib/libmilter.a; then
            SENDMAIL=/usr/include