mutt doesn't find db4 though it is present

[Mayuresh <mayuresh%acm.org@localhost>]

# uname -a
NetBSD localhost 8.0 NetBSD 8.0 (GENERIC) #0: Tue Jul 17 14:59:51 UTC 2018
mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64

In pkgsrc-current I get this though DB4 is installed and is up to date.

configure: error: You need Tokyo Cabinet, Kyoto Cabinet, QDBM, GDBM, LMDB
or Berkeley DB4 for hcache

config.log has errors of this kind:

configure:11717: gcc -o conftest -Wall -pedantic -Wno-long-long -O2
-D_FORTIFY_SOURCE=2 -I/usr/pkg/include/krb5 -I/usr/include
-I/usr/pkg/include -I/usr/pkg/include/krb5 -I/usr/include
-I/usr/pkg/include -I/usr/pkg/include/krb5  -I/usr/pkg/include
-I/usr/pkg/include -I/usr/pkg/include/db4 -s -L/usr/pkg/lib
-Wl,-R/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib -L/usr/pkg/lib -L/usr/pkg/lib
conftest.c -lcurses  -L/usr/pkg/lib -ldb4 >&5
conftest.c: In function 'main': 
conftest.c:117:35: error: 'DB {aka struct __db}' has no member named
'open'
                                 db->open(db,NULL,NULL,NULL,0,0,0);


Any idea there?

Mayuresh