mysql

[Daniel Eischen]

On Sun, 8 Jun 2003, Michael Edenfield wrote:

> * Petri Helenius <pete at he.iki.fi> [030608 14:11]:
> > Is there a preferred way / patchset to the Makefiles to build mysql with libkse?
> 
> Since libkse should be a drop-in replacement for libc_r, the easiest 
> thing to do is to rebuild your rtld with libmap support.  Then you can 
> build the mysql ports to link to libc_r as normal, and reroute the 
> linker to libkse at load time.  To do this:
> 
> * Add 'WITH_LIBMAP=yes' to /etc/make.conf
> * Rebuild world (1)
> * Create /etc/libmap.conf that looks like (2):
> 
> [mysqld]
> libc_r.so.5             libkse.so.1     
> libc_r.so               libkse.so
> 
> [/usr/local/bin/mysqld]
> libc_r.so.5             libkse.so.1     
> libc_r.so               libkse.so
> 
> * Repeat for any other apps you want to use libkse (3).
> * Retart mysql.
> 
> 
> Things to note:
> 
> (1) You only really need to rebuild rtld-elf, so a simple:
> 
> cd /usr/src/libexec/rtld-elf ; make install
> 
> should work.  I never assume my source is in sync w/ my installed 
> world, though, so I just rebuild the whole thing to be safe.
> 
> (2) man libmap.conf shows the (rather simple) syntax for the file.  
> The only catch is that you need to specify the full pathname to the 
> binary being run through the runtime loader (thus the reason for [bin] 
> and [/path/to/bin] sections).  I find it easier to follow the premise 
> of the example in the man page: globally replace libc_r -> libkse (or 
> libthr) and only exclude those programs that absolutely need it.
> 
> (3) Obviously, when libkse gets renamed to libpthead you'll need to 
> fix the config file :)

This is all good advice.

The other way is to set PTHREAD_LIBS=-lkse when building
the port.  At least that _should_ work if the port is
set up correctly (sometimes, autoconf or libtool can
detect a threads library on its own and can override
whatever PTHREAD_LIBS is set to).

-- 
Dan Eischen