AC_ARG_WITH(berkeley-db,
  [AC_HELP_STRING(--with-berkeley-db,
    [enable the dictionary plugin based on Berkeley DB IV @<:@default=check@:>@])],
  [], with_berkeley_db=check)

LIB_DBIV=""
if test "x$with_berkeley_db" != xno; then

AC_MSG_CHECKING([for Berkeley Database IV])

db_libraries=""
db_includes=""
db_name=""
ac_db_name="db"
ac_db_includes=""
ac_db_libraries=""
ac_db_include_file="db.h"

AC_ARG_WITH(db-dir,
    AC_HELP_STRING([--with-db-dir=DIR],[where the root of Berkeley DB IV is installed]),
    [  ac_db_includes=-I"$withval"/include
       ac_db_libraries=-L"$withval"/lib
    ])
AC_ARG_WITH(db-include-dir,
    AC_HELP_STRING([--with-db-include-dir=DIR],[where the includes of Berkeley DB IV are installed]),
    [  ac_db_includes=-I"$withval"
    ])
AC_ARG_WITH(db-include,
    AC_HELP_STRING([--with-db-include=FILE],[path to the Berkeley DB IV header file]),
    [  ac_db_include_file=-I"$withval"
    ])
AC_ARG_WITH(db-lib-dir,
    AC_HELP_STRING([--with-db-lib-dir=DIR],[where the libs of Berkeley DB IV are installed]),
    [  ac_db_libraries=-L"$withval"
    ])
AC_ARG_WITH(db-name,
    AC_HELP_STRING([--with-db-name=NAME],[name of the Berkeley DB IV library (default db)]),
    [  ac_db_name="$withval"
    ])

AC_DEFUN([KDE_CHECK_DB_VERSION],
[
ifelse($3,,,[LIBS="$kde_db_safe -l$3"])
AC_TRY_LINK([
#include <$2>
],
[
#if DB_VERSION_MAJOR == 4
DB *db;
#if DB_VERSION_MINOR > 0
db->open( db, NULL, "test.db", NULL, DB_BTREE, DB_CREATE, 0644 );
#else
db->open( db, "test.db", NULL, DB_BTREE, DB_CREATE, 0644 );
#endif
#else
error
#endif
],
kde_cv_berk_database=$1
)
])

AC_CACHE_VAL(kde_cv_berk_database,
[
kde_safe_LDFLAGS=$LDFLAGS
kde_db_safe_LIBS=$LIBS
LDFLAGS="$LDFLAGS $X_LDFLAGS $USER_LDFLAGS $all_libraries $ac_db_libraries $all_includes $ac_db_includes"

kde_cv_berk_database=NO
if test "xNO" = "x$kde_cv_berk_database" ; then
	KDE_CHECK_DB_VERSION($ac_db_name, $ac_db_include_file, $ac_db_name)
fi
if test "xNO" = "x$kde_cv_berk_database" ; then
	KDE_CHECK_DB_VERSION(db4, db4/db.h, db4)
fi
if test "xNO" = "x$kde_cv_berk_database" ; then
	KDE_CHECK_DB_VERSION(db4-db, db.h, db4)
fi
if test "xNO" = "x$kde_cv_berk_database" ; then
	KDE_CHECK_DB_VERSION(db, db.h, db)
fi

LIBS=$kde_db_safe_LIBS
LDFLAGS=$kde_safe_LDFLAGS

])

kde_db_header=""
DBSEARCHENGINE=dbsearchengine

case "$kde_cv_berk_database" in
 NO)
   AC_MSG_RESULT(no)
   LIB_DBIV=""
   DBSEARCHENGINE=""
   ;;
 db)
   LIB_DBIV="-l$ac_db_name"
   kde_db_header=db.h
   AC_MSG_RESULT(-l$ac_db_name)   
   AC_DEFINE_UNQUOTED(HAVE_DB_DB_H, 1, [DB 4 header location] )
   ;;
 db4-db)
   LIB_DBIV='-ldb4'
   kde_db_header=db.h
   AC_MSG_RESULT("flag is -ldb4 and header is db.h")   
   AC_DEFINE_UNQUOTED(HAVE_DB_DB_H, 1, [DB 4 header location] )
   ;;
 db4)
   LIB_DBIV='-ldb4'
   kde_db_header=db4/db.h
   AC_MSG_RESULT(-ldb4) 
   AC_DEFINE_UNQUOTED(HAVE_DB4_DB_H, 1, [DB 4 header location] )
   ;;
 $ac_db_name)
   LIB_DBIV="-l$ac_db_name"
   kde_db_header="$ac_db_include_file"
   AC_MSG_RESULT(user specified $ac_db_name)
   if test "x$ac_db_include_file" = "xdb.h" ; then
       AC_DEFINE_UNQUOTED(HAVE_DB_DB_H, 1, [DB 4 header location] )
   else
       AC_DEFINE_UNQUOTED(USE_DB_H_PATH, <$ac_db_include_file>, [DB 4 header path])
   fi

   ;;
esac

DBIV_LDFLAGS="$ac_db_libraries"
DBIV_INCLUDES="$ac_db_includes"
DBIV_NAME="$ac_db_name"

if test "x$with_berkeley_db" != xcheck && test -z "$LIB_DBIV"; then
  AC_MSG_ERROR([--with-berkeley-db was given, but test for Berkeley DB IV failed])
fi
fi

AC_SUBST(DBIV_INCLUDES)
AC_SUBST(DBIV_LDFLAGS)
AC_SUBST(DBIV_NAME)

AC_SUBST(LIB_DBIV) 

AM_CONDITIONAL(include_DBSEARCHENGINE, test -n "$DBSEARCHENGINE")