C++ 致命错误 mysql.h: 编译过程中没有这样的文件或目录
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fatal error mysql.h:No such file or directory during compilation
提问by user2883880
I have the following code
我有以下代码
#include <my_global.h>
#include <mysql.h>
int main(int argc, char **argv)
{
printf("MySQL client version: %s\n", mysql_get_client_info());
exit(0);
}
when i try to compile it using
当我尝试使用编译它时
gcc mysqldb.c -o mysql -I/usr/include/mysql -lmysqlclient
i get an error saying fatal error mysql.h:No such file or directory. how can i successfully compile and run the code
我收到一条错误消息，说是致命错误 mysql.h：没有这样的文件或目录。我怎样才能成功编译和运行代码
回答by
I do not know if there is some variation in your operation system. Mine is Arch Linux, and I have installed mariaDB. Within the package, there is a program called 'mysql_config' which can provide the right way of compile your program. By runnig
我不知道你的操作系统是否有一些变化。我的是 Arch Linux，我已经安装了mariaDB。在包中，有一个名为“mysql_config”的程序，它可以提供编译程序的正确方法。由 runnig
$ mysql_config --help
Usage: /usr/bin/mysql_config [OPTIONS]
Options:
--cflags [-I/usr/include/mysql]
--include [-I/usr/include/mysql]
--libs [-L/usr/lib -lmysqlclient -lpthread -lz -lm -lssl -lcrypto -ldl]
--libs_r [-L/usr/lib -lmysqlclient_r -lpthread -lz -lm -lssl -lcrypto -ldl]
--plugindir [/usr/lib/mysql/plugin]
--socket [/run/mysqld/mysqld.sock]
--port [0]
--version [10.0.17]
--libmysqld-libs [-L/usr/lib -lmysqld]
--variable=VAR VAR is one of:
pkgincludedir [/usr/include/mysql]
pkglibdir [/usr/lib]
plugindir [/usr/lib/mysql/plugin]
you can see the control flags of the program. With your program, i used the following:
你可以看到程序的控制标志。在你的程序中，我使用了以下内容：
$gcc main.c -o main $(mysql_config --libs --cflags)
and then, by runnig the the new program 'main'
然后，通过运行新程序“main”
$./main
MySQL client version: 10.0.17-MariaDB
which clearly worked out!
这显然解决了！
So, i'm sure that there a few others ways of doing this, but now this is fine for me.
所以，我确信还有其他一些方法可以做到这一点，但现在这对我来说很好。
Tip
提示
Run the command
运行命令
$mysql_config --libs --cflags
to see the exacly flags that mysql_config produces. Enjoy!
查看 mysql_config 产生的确切标志。享受！
回答by 3bu1
Check that /usr/include/mysql/mysql.hexists. If you have installed the header filessomewhere else (say /opt/mysql/include), add that location with -I/opt/mysql/include.
检查是否/usr/include/mysql/mysql.h存在。如果您已经在其他地方安装了头文件（比如/opt/mysql/include），请添加该位置-I/opt/mysql/include.
回答by fengqi
I come across the same error today, turn out that I forget to install package libmysqlclient-dev. After I install it with
我今天遇到了同样的错误，结果是我忘记安装 package libmysqlclient-dev。在我安装它之后
sudo apt install libmysqlclient-dev
the error went away.
错误消失了。
回答by Mahamadou Kone
I had the same problem, but fortunately the command
sudo apt install libmysqlclient-devas specified by
user4713908 fixed it.
我遇到了同样的问题，但幸运的sudo apt install libmysqlclient-dev是 user4713908 指定的命令
修复了它。
I juat had to specify the path in my makefile as
我必须在我的 makefile 中指定路径为
gcc -o database1 chapter5_1.c -I/usr/include/mysql
I'm using Kali Linux
我正在使用Kali Linux
