Trouble Building MySQL Driver
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I encountered similar issue before. I solved it by downloading mysql dll for C from mysql website, I then proceed to move my libmysql.dll into the same folder as my executable.
Hi and welcome to devnet,
Please search the form a bit, that question has been asked many times already. You need to install Qt's sources and build the MySQL plugin. The sources can be installed through e.g. the Online Installer
Sorry for delayed response. I made some progress, I think. I finally found the Qt source code and now I'm trying to build the plugin from source. I'm now getting an error when I call make. Here's the console output:
rofln@ubuntu:~/Desktop/qt-everywhere-opensource-src-5.5.1/qtbase/src/plugins/sqldrivers/mysql$ /opt/Qt/5.5/gcc_64/bin/qmake "INCLUDEPATH+=/usr/include/mysql" "LIBS+=-L/usr/lib/mysql -ldl -lmysqlclient_r" mysql.pro rofln@ubuntu:~/Desktop/qt-everywhere-opensource-src-5.5.1/qtbase/src/plugins/sqldrivers/mysql$ make ****compiler stuff***** /usr/lib64/mysql/libmysqlclient_r.a(client_plugin.c.o): In function `do_add_plugin': /export/home/pb2/build/sb_0-14542007-1424899317.1/rpm/BUILD/mysql-connector-c-6.1.6-src/mysql-connector-c-6.1.6- src/sql-common/client_plugin.c:245: undefined reference to `dlclose' /usr/lib64/mysql/libmysqlclient_r.a(client_plugin.c.o): In function `mysql_client_plugin_deinit': /export/home/pb2/build/sb_0-14542007-1424899317.1/rpm/BUILD/mysql-connector-c-6.1.6-src/mysql-connector-c-6.1.6-src/sql-common/client_plugin.c:381: undefined reference to `dlclose' /usr/lib64/mysql/libmysqlclient_r.a(client_plugin.c.o): In function `mysql_load_plugin_v': /export/home/pb2/build/sb_0-14542007-1424899317.1/rpm/BUILD/mysql-connector-c-6.1.6-src/mysql-connector-c-6.1.6-src/sql-common/client_plugin.c:469: undefined reference to `dlopen' /export/home/pb2/build/sb_0-14542007-1424899317.1/rpm/BUILD/mysql-connector-c-6.1.6-src/mysql-connector-c-6.1.6-src/sql-common/client_plugin.c:497: undefined reference to `dlsym' /export/home/pb2/build/sb_0-14542007-1424899317.1/rpm/BUILD/mysql-connector-c-6.1.6-src/mysql-connector-c-6.1.6-src/sql-common/client_plugin.c:488: undefined reference to `dlerror' /export/home/pb2/build/sb_0-14542007-1424899317.1/rpm/BUILD/mysql-connector-c-6.1.6-src/mysql-connector-c-6.1.6-src/sql-common/client_plugin.c:500: undefined reference to `dlclose'
I looked online to find that I had to add the -ldl linker flag. I've tried it before and after the -lmysqlclient_r flag but get the same output. Any ideas?
Finally fixed it. I had the wrong file path to my shared library files.