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Why I can't create a database using Berkeley DB
- From: Manuel Tejada <mantemu at yahoo dot com dot mx>
- To: cygwin at cygwin dot com
- Date: Wed, 20 Jul 2005 21:27:52 -0500 (CDT)
- Subject: Why I can't create a database using Berkeley DB
Recently I installed Berkeley DB version 4.3.
I copied The following example source from a tutorial
somewhere which I saved as prueba_berkeley.c:
---------------------------------
#include <sys/types.h>
#include <stdio.h>
#include <db.h>
#define DATABASE "access.db"
int
main()
{
DB *dbp;
DBT key, data;
int ret, t_ret;
if ((ret = db_create(&dbp, NULL, 0)) != 0) {
fprintf(stderr, "db_create: %s\n",
db_strerror(ret));
exit (1);
}
if ((ret = dbp->open(dbp,
NULL, DATABASE, NULL, DB_BTREE, DB_CREATE, 0664))
!= 0) {
dbp->err(dbp, ret, "%s", DATABASE);
goto err;
}
memset(&key, 0, sizeof(key));
memset(&data, 0, sizeof(data));
key.data = "fruit";
key.size = sizeof("fruit");
data.data = "apple";
data.size = sizeof("apple");
if ((ret = dbp->put(dbp, NULL, &key, &data, 0)) == 0)
printf("db: %s: key stored.\n", (char *)key.data);
else {
dbp->err(dbp, ret, "DB->put");
goto err;
}
if ((ret = dbp->get(dbp, NULL, &key, &data, 0)) == 0)
printf("db: %s: key retrieved: data was %s.\n",
(char *)key.data, (char *)data.data);
else {
dbp->err(dbp, ret, "DB->get");
goto err;
}
if ((ret = dbp->del(dbp, NULL, &key, 0)) == 0)
printf("db: %s: key was deleted.\n", (char
*)key.data);
else {
dbp->err(dbp, ret, "DB->del");
goto err;
}
if ((ret = dbp->get(dbp, NULL, &key, &data, 0)) == 0)
printf("db: %s: key retrieved: data was %s.\n",
(char *)key.data, (char *)data.data);
else
dbp->err(dbp, ret, "DB->get");
err: if ((t_ret = dbp->close(dbp, 0)) != 0 && ret ==
0)
ret = t_ret;
exit(ret);
}
----------------------------------
When I tried to compile prueba_berkeley.c I get the
following:
$ gcc -o prueba_berkeley prueba_berkeley.c
/cygdrive/c/WINDOWS/TEMP/ccRirmsy.o:prueba_berkeley.c:(.text+0x45):
undefined reference to `_db_create'
/cygdrive/c/WINDOWS/TEMP/ccRirmsy.o:prueba_berkeley.c:(.text+0x59):
undefined reference to `_db_strerror'
collect2: ld returned 1 exit status
As you see, it tells the db_create() anf db_strerror()
are not defined. Somebody can tell me how to define
them?
I will appreciate any help.
Manuel TEJADA M.
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