hello Sergei the modification was made in some replication specific files rpl_gtid.h & rpl_gtid.cc *rohit@ubuntu:/work/mariadb/mariadb/mariadb10$ bzr st * *modified:* * sql/rpl_gtid.cc* * sql/rpl_gtid.h* *unknown:* * mysql-test/suite/rpl/t/rpl_x.test* There are a lot of targets being rebuild. 1. stroage* perfschema aria xtradb 2. handlers 3. sql core item* and many others. I have attached the build output here. Also tokud fails to build since its not -werror safe, so i had to build without it. here is the cmake command *cmake -DWITHOUT_TOKUDB=1* Hope it helps. Rohit. On Mon, Mar 17, 2014 at 1:17 AM, Sergei Golubchik wrote:

Hi, Rohit!

On Mar 16, Rohit Kalhans wrote:

...

hello all,

I am trying to fix a few bugs but ever after small modifications in specific files, make command build all targets irrespective of whether or not they are dependent on the modified source. I am no expert in build commands but this seem off since it keeps taking exceptionally long time to build.

Is there a trick/workaround that can prevent all targets from being built. Or am I missing something.

Please explain in details what you have changed and what is being built that you think shouldn't be.

cmake is usually pretty good in tracking dependencies.

Regards, Sergei

-- Cheerio! *Rohit*

Rohit Kalhans writes:

Also if it is relevant in some way the bug i was trying to fix is MDEV-5873. i have changed some function signatures in the header and ~5 lines of change in the cc file.

Oh, you're looking into that? I do hope you will share any findings :-) I was rather annoyed that I ended up releasing with this bug/limitation, I *think* it should be possible to do it correctly in a reasonable way, but I haven't had time to think it through yet. I'd be fantastic to get this one fixed. Unfortunately, I do not know how to solve the problem with excessive rebuild. I know that when I change most any .h file it ends up rebuilding a _lot_ of stuff, I always assumed it was just everything including most everything else recursively. But that does not help explain the second rebuild with no file changes. - Kristian.

Hi, Rohit! On Mar 17, Rohit Kalhans wrote:

hello Sergei

the modification was made in some replication specific files rpl_gtid.h & rpl_gtid.cc

*rohit@ubuntu:/work/mariadb/mariadb/mariadb10$ bzr st * *modified:* * sql/rpl_gtid.cc* * sql/rpl_gtid.h* *unknown:* * mysql-test/suite/rpl/t/rpl_x.test*

There are a lot of targets being rebuild. 1. stroage* perfschema aria xtradb 2. handlers 3. sql core item*

This is correct. It happens because sql_class.h includes rpl_gtid.h. And almost every storage engine, items, everything needs THD that is declared in sql_class.h You can easily verify that yourself, put #error into rpl_gtid.h and you'll see that lots of files will not compile - which means all these files include rpl_gtid.h and they have to be rebuilt when rpl_gtid.h changes. Regards, Sergei