Add MariaDB Connector/C as a built-in alternative (v3.2.3).

vendor/MDBC/man/mariadb_connection.3

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+.\" Automatically generated by Pandoc 2.5
+.\"
+.TH "mariadb_connection" "3" "" "Version 3.2.2" "MariaDB Connector/C"
+.hy
+.SS Name
+.PP
+mariadb_connection \- checks if the client is connected to a MariaDB
+database server
+.SS Synopsis
+.IP
+.nf
+\f[C]
+#include <mysql.h>
+
+my_bool mariadb_connection(MYSQL * mysql);
+\f[R]
+.fi
+.SS Description
+.PP
+Checks if the client is connected to a MariaDB or MySQL database server.
+.SS Parameter
+.PP
+\f[C]mysql\f[R] \- mysql handle, which was previously allocated by
+\f[B]mysql_init(3)\f[R] and connected by
+\f[B]mysql_real_connect(3)\f[R].
+.SS Return value
+.PP
+Returns a non zero value if connected to a MariaDB database server,
+otherwise zero.