libsybdb.so Not Found
Are you configuring PHP ? if you get such an error, first be sure that you installed all freetds libraries by using :
yum install freetds "for MSSQL"
yum install freetds-devel.x86_64
If build still fail after install sybase lib, it might be caused by library path problem. The best way is passing correct library path with --with-libpath, like below example:
./config.nice whatEver_Parameters --with-libpath=/usr/lib64