could not find suitable LDBM backend

[Keith Mastin <kmastin@beechtree.ca>]

I searched the archives, I read the FAQ regarding this error, and I tried 
everything there with no results. (Most of the issues regarding this error 
appear to be solaris -based. The one Redhat message is from years ago, 
redhat 5.1 and db-2.x)

I installed berkely db-4 in /usr/local/db-4:
cd /usr/local/db-4/build_unix
../dist/configure
make

This went well, with no errors.


When installing openldap in /usr/local/openldap, configure ends with:

...<snip>
checking for db.h... no
checking for MDBM library... checking for mdbm_set_chain... no
checking for mdbm_set_chain in -lmdbm... no
no
checking for mdbm.h... no
checking for db... no
checking for GDBM library... checking for gdbm_open... no
checking for gdbm_open in -lgdbm... no
no
checking for gdbm.h... no
checking for db... no
configure: warning: could not find suitable LDBM backend
configure: error: select appropriate LDBM options or disable


So after searching the archives and the FAQ, I did:

LD_LIBRARY_PATH=/usr/local/lib
export LD_LIBRARY_PATH
export CPPFLAGS="-I/usr/local/include"
./configure

I also tried this, suggested in the FAQ to force ./configure to use db-4:
./configure --with-ldbm-api=berkeley

.... nope. No joy. Next:
export CPPFLAGS="-I/usr/local/db-4/include"
LD_LIBRARY_PATH=/usr/local/db-4/lib
export LD_LIBRARY_PATH
./configure

Arrghh!! I still get the same error. After about 4 hours fighting this, 
I'm stumped. Here is the end of the make output of db-4:

cc -o .libs/db_upgrade db_upgrade.o util_sig.o  ./.libs/libdb-4.1.so  
-Wl,--rpath -Wl,/usr/local/BerkeleyDB.4.1/lib
creating db_upgrade
/bin/sh ./libtool --mode=execute true db_upgrade
/bin/sh ./libtool --mode=compile cc -c -I. -I../dist/.. -I../dist/../dbinc 
-I/usr/local/include -D_GNU_SOURCE -D_REENTRANT -O 
../dist/../db_verify/db_verify.c
rm -f .libs/db_verify.lo
cc -c -I. -I../dist/.. -I../dist/../dbinc -I/usr/local/include 
-D_GNU_SOURCE -D_REENTRANT -O ../dist/../db_verify/db_verify.c  -fPIC 
-DPIC -o .libs/db_verify.lo
cc -c -I. -I../dist/.. -I../dist/../dbinc -I/usr/local/include 
-D_GNU_SOURCE -D_REENTRANT -O ../dist/../db_verify/db_verify.c -o 
db_verify.o >/dev/null 2>&1
mv -f .libs/db_verify.lo db_verify.lo
/bin/sh ./libtool --mode=link cc -o db_verify  \
    db_verify.lo util_cache.lo util_sig.lo libdb-4.1.la 
cc -o .libs/db_verify db_verify.o util_cache.o util_sig.o  
./.libs/libdb-4.1.so  -Wl,--rpath -Wl,/usr/local/BerkeleyDB.4.1/lib
creating db_verify
/bin/sh ./libtool --mode=execute true db_verify

I tried to check the db version to verify:
grep DB_VERSION_STRING /usr/include/db.h
grep: /usr/include/db.h: No such file or directory

Hmmmm... locate db.h:

/usr/share/doc/pwdb-0.61.1/html/pwdb.html
/usr/share/doc/rpm-devel-4.0.4/apidocs/html/classrpmdb.html
/usr/share/doc/rpm-devel-4.0.4/apidocs/html/group__rpmdb.html
/usr/share/doc/rpm-devel-4.0.4/apidocs/man/man3/rpmdb.h.3.gz
/usr/include/linux/adb.h
/usr/include/bits/netdb.h
/usr/include/netdb.h
/usr/include/rpc/netdb.h
/usr/include/rpm/rpmdb.h
/usr/include/thread_db.h
/usr/local/ssl/include/openssl/txt_db.h
/usr/local/pam/modules/pam_userdb/pam_userdb.h
/usr/local/openssl/crypto/txt_db/txt_db.h
/usr/local/openssl/include/openssl/txt_db.h
/usr/local/apache/htdocs/manual/mod/mod_auth_db.html
/usr/local/db-4/build_unix/db.h
/usr/local/db-4/build_vxworks/db.h
/usr/local/db-4/build_win32/db.h
/usr/local/db-4/dbinc/tcl_db.h
/usr/local/db-4/tcl/docs/db.html
/usr/local/db-4/docs/ref/lock/nondb.html
/usr/local/db-4/docs/ref/upgrade.3.0/db.html


WTF? Looks to me like db-4 isn't properly included...

What file should I specifically be trying to locate, and how do I properly 
set the LD_LIBRARY_PATH and CPPFLAGS to point to it?


Alternatively, do I really need ldbm? The purpose of ldap on this machine 
is to use the qmail_ldap patch for qmail authentication and to get all 
qmail user account information from an LDAP database. 

Please let me know if any other information is needed.

Thanks in advance.
-- 
Keith Mastin       BeechTree Information Technology Services Inc.
137 Laird Drive    Toronto    M4G 3V5     http://www.beechtree.ca
  (416)696-6070      Fax(416)696-6072      kmastin@beechtree.ca