Re: [Vala] Problem using Mysql in Vala (Fedora 21): /usr/bin/ld: cannot find -lmysqlclient

[AxP <Der_AxP t-online de>]

Thanks for the answers!

@ Steven Oliver: Am I correct when I say that this solution helps to 
find missing header files? I think that they are already correctly found 
and the problem lies with the .so file which is not found.

@ Tarnyko: I actually searched for this file before and found it in the 
//usr/lib64/mysql/ which is also shown when I use mysql_config. So this 
file is /there/ but ... How would I tell valac where the file is?

> This kind of stuff can be a pain.
Very true :D


Am 12.12.2014 um 17:29 schrieb Steven Oliver:
> This kind of stuff can be a pain. I've found that I sometimes have to 
> update my c_include_path to include the new shared libraries. 
> Something like this:
>
> export C_INCLUDE_PATH="/usr/include/libev"
>
> Steven N. Oliver
>
> On Fri, Dec 12, 2014 at 10:41 AM, Tarnyko <tarnyko tarnyko net 
> <mailto:tarnyko tarnyko net>> wrote:
>
>     Hi AxP,
>     What the message is really telling you, is that you miss the
>     "libmysqlclient.so" file.
>     This file is typically in a separate package, depending on the
>     distribution you are using ; in OpenSUSE for instance, it's in
>     "libmysqlclient-devel"
>     (http://rpmfind.net/linux/rpm2html/search.php?query=libmysqlclient-devel)
>
>     Hope this helps.
>     Regards,
>     Tarnyko
>     AxP writes:
>
>         Hello,
>         I tried to use MySQL today with Vala but ran into some
>         Problems. I searched for some solutions but couldn't fix the
>         issue. I saw a few threads on the list with a similar problem
>         but it didn't help me.
>         First I was trying to get
>         http://www.fromdual.com/mysql-vala-program-example working,
>         now it's only this short snippet:
>
>             using Mysql;
>             static int main(string[] args) {
>                 Database mysql = new Mysql.Database();
>                 return 0;
>             }
>
>
>         Problem is that I get this message in return:
>
>             valac "main.vala" --pkg mysql -X -lmysqlclient (im
>             Verzeichnis: /home/axp/Dokumente/Workspaces/10
>             Vala/MailServer/src)
>             main.vala:5.14-5.41: warning: local variable `mysql'
>             declared but never used
>                 Database mysql = new Mysql.Database();
>                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>             /usr/bin/ld: cannot find -lmysqlclient
>             collect2: Fehler: ld gab 1 als Ende-Status zurück
>             error: cc exited with status 256
>             Compilation failed: 1 error(s), 1 warning(s)
>             Kompilierung fehlgeschlagen.
>
>
>         I think that there could be problem with my setup. I've done:
>
>             yum install mysql-server
>             yum install mysql-devel
>
>         So the libraries and headers are installed and new.
>         Compilation with valac -c "%f" --pkg mysql -X -lmysqlclient is
>         working.
>         But really creating the little program with valac "%f" --pkg
>         mysql -X -lmysqlclient fails.
>         I thought this could be a nice opportunity to try the mailing
>         list. I hope the problem is not too trivial and I'm the only
>         one who doesn't know the solution :B
>         Thank you in advance!
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