MariaDB .debs should link with system libz/libssl/libreadline/libevent, not bundled versions

[Kristian Nielsen]

Arkadiusz Miśkiewicz discovered that our .debs are linked statically with bundled libz, libssl, libevent, and libreadline.

We should fix this to use the system libraries from the distro.

For libevent, there is a related bug #509521 that this cannot even be specified on ./configure so would need fix for this or small patch included in bug.

knielsen@odin:~$ ldd /usr/sbin/mysqld
 linux-vdso.so.1 => (0x00007ffff43fe000)
 libnsl.so.1 => /lib/libnsl.so.1 (0x00007ffeeb59f000)
 libpthread.so.0 => /lib/libpthread.so.0 (0x00007ffeeb383000)
 libwrap.so.0 => /lib/libwrap.so.0 (0x00007ffeeb17a000)
 libdl.so.2 => /lib/libdl.so.2 (0x00007ffeeaf76000)
 librt.so.1 => /lib/librt.so.1 (0x00007ffeead6d000)
 libresolv.so.2 => /lib/libresolv.so.2 (0x00007ffeeab57000)
 libcrypt.so.1 => /lib/libcrypt.so.1 (0x00007ffeea91f000)
 libm.so.6 => /lib/libm.so.6 (0x00007ffeea69e000)
 libc.so.6 => /lib/libc.so.6 (0x00007ffeea33c000)
 /lib64/ld-linux-x86-64.so.2 (0x00007ffeeb7b8000)
knielsen@odin:~$ ldd /usr/bin/mysql
 linux-vdso.so.1 => (0x00007fff2fdff000)
 libncurses.so.5 => /lib/libncurses.so.5 (0x00007ff32777c000)
 libpthread.so.0 => /lib/libpthread.so.0 (0x00007ff327560000)
 libmysqlclient.so.16 => /usr/lib/libmysqlclient.so.16 (0x00007ff327133000)
 libnsl.so.1 => /lib/libnsl.so.1 (0x00007ff326f1a000)
 librt.so.1 => /lib/librt.so.1 (0x00007ff326d11000)
 libresolv.so.2 => /lib/libresolv.so.2 (0x00007ff326afb000)
 libcrypt.so.1 => /lib/libcrypt.so.1 (0x00007ff3268c3000)
 libm.so.6 => /lib/libm.so.6 (0x00007ff326642000)
 libc.so.6 => /lib/libc.so.6 (0x00007ff3262e0000)
 libdl.so.2 => /lib/libdl.so.2 (0x00007ff3260dc000)
 /lib64/ld-linux-x86-64.so.2 (0x00007ff3279b7000)
knielsen@odin:~$ /usr/sbin/mysqld --version
/usr/sbin/mysqld Ver 5.1.39-maria-beta-ourdelta67-log for debian-linux-gnu on x86_64 ((OurDelta - http://ourdelta.org/))

[Kristian Nielsen (knielsen)]

For libevent, it turns out that MariaDB needs libevent 1.4 to work. But Debian 4+5 and Ubuntu <= 9.04 have only 1.3.

So for .deb on older distros, it seems we have to use bundled libevent (./configure will do this automatically in MariaDB 5.1.43+).

[Sergei Golubchik (sergii)]

see also https://bugs.launchpad.net/maria/+bug/587850

[Kristian Nielsen (knielsen)]

Fix should be in MariaDB 5.1.52 and 5.2.4.

Note that on Debian 5 lenny and earlier, and on Ubuntu 9.04 jaunty and earlier, system libevent is too old, so on these platforms we still use bundled libevent. On newer releases, system libevent is used.

[Kristian Nielsen (knielsen)]

Fixed in MariaDB 5.2.4 and 5.1.53