#1 undefined symbol: _Znwj

[Anonymous]

$ mysqld -V
mysqld Ver 3.23.49 for pc-linux-gnu on i686

Yup. It's a box on Debian Stable (Woody).

The library compiled fine, without warning.

mysqld isn't running with --skip-grant-tables.

mysql> CREATE AGGREGATE FUNCTION median RETURNS REAL
SONAME 'udf_median.so';
ERROR 1126: Can't open shared library 'udf_median.so'
(errno: 22 /usr/lib/udf_median.so: undefined symbol: _Znwj)

[Nobody/Anonymous]

Logged In: NO

Okay. Solved my own problem.

Headers needed for compilation and successful installation
under Debian Stable (Woody) are provided by:

apt-get install libstdc++2.10 libstdc++2.10-dev
libstdc++2.10-glibc2.2 libmysqlclient10-dev