mysql_real_connect() and options files

[Sebastien FLAESCH]

Hello,

My OS is Debian Squeeze, and I have just upgraded MySQL 5.5.1 to 5.5.19 (in a development environment - not installed with regular Debian package manager)...

I have a C program doing mysql_real_connect() with "no value" parameters for the host/port/socket, and it seems that the function does not read the default [client] settings in the different my.cnf options files..

Package mysql binaries (mysql, mysqladmin) read from the configuration files.

In fact I get the typical localhost connect error:

Can't connect to local MySQL server through socket '/tmp/mysql.sock'

No matter what I put in the [client] section of my ~/.my.cnf, /etc/my.cnf or $MYSQL_HOME/my.cnf files, it's just ignored.

Has something changed since 5.5.1 ?!?!

My code did NOT change, just mysql_init() and then mysql_real_connect() ...

I do NOT use the mysql_options(MYSQL_READ_DEFAULT_FILE,"xxx") way.

Thanks for your help!
Seb