mariadb: add dependency libevent

mariadb failed to build:
| make[2]: *** No rule to make target
  '/.../bitbake_build/tmp/sysroots/qemux86-64/usr/lib64/libevent.so',
  needed by 'tests/async_queries'.  Stop.
| make[2]: Leaving directory
  '/.../bitbake_build/tmp/work/core2-64-wrs-linux/mariadb/5.5.40-r0/build'
  CMakeFiles/Makefile2:6742: recipe for target 'tests/CMakeFiles/async_queries.dir/all' failed
| make[1]: *** [tests/CMakeFiles/async_queries.dir/all] Error 2

It is an rare case that when configure mariadb, libevent exists in
sysroot. But when do compile for mariadb, libevent is gone somehow. That
causes build fails. Run follow commands could reproduce this error:

$ bitbake libevent
$ bitbake mariadb -c cleansstate
$ bitbake mariadb -c configure
$ bitbake libevent -c clean
$ bitbake mariadb

Add if without libevent, test case tests/async_queries.c will not be built.
The case is helpful to do unit test. So add libevent as a dependency to fix the
error and make sure async_queries.c will be built.

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta-oe/recipes-support/mysql/mariadb_5.5.40.bb b/meta-oe/recipes-support/mysql/mariadb_5.5.40.bb
index f24cb4346..8f998a3a5 100644
--- a/meta-oe/recipes-support/mysql/mariadb_5.5.40.bb
+++ b/meta-oe/recipes-support/mysql/mariadb_5.5.40.bb
@@ -2,7 +2,7 @@ require mariadb.inc
 
 EXTRA_OECMAKE += "-DSTACK_DIRECTION=-1"
 
-DEPENDS += "mariadb-native ncurses zlib readline libaio"
+DEPENDS += "mariadb-native ncurses zlib readline libaio libevent"
 
 PROVIDES += "mysql5"