问题

我已成功在Mac OS Monterey上使用Homebrew安装了mariadb和mariadb-connector-c，但无法弄清如何使用`gcc`编译一个简单的C源文件。如果我尝试：

gcc -o test main.c

main.c:1:10: fatal error: 'mysql.h'文件未找到

尝试一些不同的方法，如果我根据MySQL的使用自己的连接器-c的指令[这里](https://dev.mysql.com/doc/c-api/8.0/en/c-api-building-clients.html)，我尝试了：

gcc -o main main.c /usr/local/bin/mariadb_config

ld: 无法为架构x86_64链接到主可执行文件'/usr/local/bin/mariadb_config'

我尝试的另一件事是根据这里的答案[这里](https://stackoverflow.com/a/17265849/19847712)来适应mariadb：

gcc -o test main.c $(mariadb_config --libs)

main.c:1:10: fatal error: 'mysql.h'文件未找到

如何在Mac上编译使用mariadb-connector-c的C程序？

FYI，这是`main.c`：
```c
#include <mysql.h>
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv)
{
  MYSQL *con = mysql_init(NULL);

  if (con == NULL)
  {
    fprintf(stderr, "%s\n", mysql_error(con));
    exit(1);
  }

  if (mysql_real_connect(con, "localhost", "(...)", "(...)", NULL, 0, NULL, 0) == NULL)
  {
    fprintf(stderr, "%s\n", mysql_error(con));
    mysql_close(con);
    exit(1);
  }

  if (mysql_query(con, "CREATE DATABASE testdb"))
  {
    fprintf(stderr, "%s\n", mysql_error(con));
    mysql_close(con);
    exit(1);
  }

  mysql_close(con);

  printf("MySQL客户端版本：%s\n", mysql_get_client_info());

  exit(0);
}

<details>
<summary>英文:</summary>

I have successfully installed mariadb and mariadb-connector-c on Mac OS Monterey using Homebrew but cannot figure out how to compile a simple c source file with `gcc`. If I try:

gcc -o test main.c

main.c:1:10: fatal error: 'mysql.h' file not found

Trying something different, if I adapt the MySQL instructions for using its own connector-c [here](https://dev.mysql.com/doc/c-api/8.0/en/c-api-building-clients.html), I've tried:

gcc -o main main.c /usr/local/bin/mariadb_config

ld: can't link with a main executable file '/usr/local/bin/mariadb_config' for architecture x86_64

Another thing I've tried is adapting the answer [here](https://stackoverflow.com/a/17265849/19847712) for mariadb:

gcc -o test main.c $(mariadb_config --libs)

main.c:1:10: fatal error: 'mysql.h' file not found

How can I compile a c program that uses mariadb-connector-c on Mac?

FYI, here is `main.c`:

#include <mysql.h>
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv)
{
MYSQL *con = mysql_init(NULL);

if (con == NULL)
{
fprintf(stderr, "%s\n", mysql_error(con));
exit(1);
}

if (mysql_real_connect(con, "localhost", "(...)", "(...)", NULL, 0, NULL, 0) == NULL)
{
fprintf(stderr, "%s\n", mysql_error(con));
mysql_close(con);
exit(1);
}

if (mysql_query(con, "CREATE DATABASE testdb"))
{
fprintf(stderr, "%s\n", mysql_error(con));
mysql_close(con);
exit(1);
}

mysql_close(con);

printf("MySQL client version: %s\n", mysql_get_client_info());

exit(0);
}

</details>


# 答案1
**得分**: 1

gcc需要知道在哪里找到MariaDB Connector/C的包含文件（在大多数情况下是mysql.h）以及MariaDB C/C库的位置和名称。

您可以使用`-I/include_path` `-L/library_path` `-lmariadb`来指定它们，或者您可以使用mariadb_config：

```bash
gcc -o test main.c $(mariadb_config --include --libs)

来源：https://mariadb.com/docs/skysql-previous-release/connect/programming-languages/c/development/

gcc -o test main.c $(mariadb_config --include --libs)