My /usr/local/mysql/bin/mysql_config on line 94:
pkgincludedir='/usr/local/mysql/include'
Path of mysql-dev installation:
/usr/local/include/mysql
I can't compile using default path of mysql-dev, but I can with following code:
mkdir /usr/local/mysql/include
cp -R /usr/local/include/mysql/* /usr/local/mysql/include