Bug #79262 ERROR 1126 (HY000): Can't open shared library 'Enc.so'

Description:
I am trying to create a function via 
'CREATE FUNCTION Enc RETURNS STRING SONAME "Enc.so";'

and I am getting the following error 

ERROR 1126 (HY000): Can't open shared library 'Enc.so' (errno: 0 /usr/lib/mysql/plugin/Enc.so: undefined symbol: __gmpz_tdiv_q)

I am using gmp library in my code but can't get why this problem happening !
The next command is what I use when I compile my c file.

gcc $(mysql_config --cflags)  -shared -lgmp -fPIC -o Enc.so Enc.c

How to repeat:
The bug seems to happen to matter what command I used in compiling though it seems a linking problem but nothing is changed for example when I use 

gcc $(mysql_config --cflags) -I/usr/local/mysql/include -L/usr/local/mysql/lib -lmysqlclient -lz  -shared -lgmp -fPIC -o Enc.so Enc.c

Please provide a complete test case and checked against latest release. Thanks.