Hi everyone, I'm new user of MariaDB, and I install it on Centos 6.8 64bit. I install it using yum utility , according instruction on MariaDB site: https://mariadb.com/kb/en/mariadb/yum/. yum install MariaDB-server MariaDB-client finished without any problem. I can use mysql client to connect to databases without any problems. Then I try to compile some of my applications. To find out what library to use and where include files are I use mysql_config and mariadb_config. mysql_config output: [root@xms tests]# mysql_config Usage: /usr/bin/mysql_config [OPTIONS] Options: --cflags [-I/usr/include/mysql ] --include [-I/usr/include/mysql] --libs [-L/usr/lib64 -lmariadb] --libs_r [-L/usr/lib64 -lmariadb] --plugindir [/usr/lib64/mysql/plugin] --socket [/var/lib/mysql/mysql.sock] --port [0] --version [10.2.6] --libmysqld-libs [-L/usr/lib64 -lmysqld -lpthread -lz -lm -lrt -ldl -lssl -lcrypto -lcrypt -laio] --variable=VAR VAR is one of: pkgincludedir [/usr/include/mysql] pkglibdir [/usr/lib64] plugindir [/usr/lib64/mysql/plugin] [root@xms tests]# And mariadb_config returns: [root@xms tests]# mariadb_config Copyright 2011-2015 MariaDB Corporation AB Get compiler flags for using the MariaDB Connector/C. Usage: mariadb_config [OPTIONS] --cflags [-I/usr/include/mysql -I/usr/include/mysql/mysql] --include [-I/usr/include/mysql -I/usr/include/mysql/mysql] --libs [-L/usr/lib64/ -lmariadb -lpthread -ldl -lm -lssl -lcrypto] --libs_r [-L/usr/lib64/ -lmariadb -lpthread -ldl -lm -lssl -lcrypto] --libs_sys [-lpthread -ldl -lm -lssl -lcrypto] --version [10.2.5] --socket [/var/lib/mysql/mysql.sock] --port [3306] --plugindir [/usr/lib64/mysql/plugin] --tlsinfo [OpenSSL 1.0.1e] [root@xms tests]# First question is why these two outputs are different? I wrote Makefile and use -I and -L like this in mysql_config. gcc compiler finish with error that there is no mariadb library. What I have missed? Where is libmariadb located? Best Regards, Romeo <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>