我使用此处的说明安装了 MongoDB C 驱动程序(在“从发布 tarball 构建”部分下:http://api.mongodb.com/c/current/installing.html#installing-unix),并且在尝试编译 MongoDB 的示例代码时出现以下错误:
nicholas@nicholas-CQ5715F:~$ gcc -o connect connect.c $(pkg-config --cflags --libs libmongoc-1.3.5) 在 pkg-config 搜索路径中找不到包 libmongoc-1.3.5。 也许你应该添加包含“libmongoc-1.3.5.pc”的目录 到 PKG_CONFIG_PATH 环境变量 找不到软件包“libmongoc-1.3.5” connect.c:1:18: fatal error : bson.h: 没有那个文件或目录 #包括 ^ 编译终止。
代码如下:
#include <bson.h>
#include <bcon.h>
#include <mongoc.h>
int
main (int argc,
char *argv[])
{
mongoc_client_t *client;
mongoc_database_t *database;
mongoc_collection_t *collection;
bson_t *command,
reply,
*insert;
bson_error_t error;
char *str;
bool retval;
/*
* Required to initialize libmongoc's internals
*/
mongoc_init ();
/*
* Create a new client instance
*/
client = mongoc_client_new ("mongodb://localhost:27017");
/*
* Get a handle on the database "db_name" and collection "coll_name"
*/
database = mongoc_client_get_database (client, "db_name");
collection = mongoc_client_get_collection (client, "db_name", "coll_name");
/*
* Do work. This example pings the database, prints the result as JSON and
* performs an insert
*/
command = BCON_NEW ("ping", BCON_INT32 (1));
retval = mongoc_client_command_simple (client, "admin", command, NULL, &reply, &error);
if (!retval) {
fprintf (stderr, "%s\n", error.message);
return EXIT_FAILURE;
}
str = bson_as_json (&reply, NULL);
printf ("%s\n", str);
insert = BCON_NEW ("hello", BCON_UTF8 ("world"));
if (!mongoc_collection_insert (collection, MONGOC_INSERT_NONE, insert, NULL, &error)) {
fprintf (stderr, "%s\n", error.message);
}
bson_destroy (insert);
bson_destroy (&reply);
bson_destroy (command);
bson_free (str);
/*
* Release our handles and clean up libmongoc
*/
mongoc_collection_destroy (collection);
mongoc_database_destroy (database);
mongoc_client_destroy (client);
mongoc_cleanup ();
return 0;
}
最佳答案
你必须先加载pkgconfig模块
[root@fedora20 microservice]# export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
[root@fedora20 microservice]# pkg-config --modversion libbson-1.0
1.4.2
[root@fedora20 microservice]# pkg-config --modversion libmongoc-1.0
1.4.2
[root@fedora20 microservice]# gcc -o connect connect.c $(pkg-config --cflags --libs libbson-1.0 libmongoc-1.0)
[root@fedora20 microservice]# ls
connect connect.c
关于connect.c :1:18: fatal error: bson. h: 没有那个文件或目录,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38552717/