To build the ibm_db2 extension, the DB2 application development header files
and libraries must be installed on the system.
DB2 does not install these by default, so it may be necessary to return to the
DB2 installer and add this option.
The DB2 Application Development Client includes the header files and is freely
available for download from the IBM DB2 Universal Database
» support site.
If the DB2 application development header files and libraries are added to a
Linux or Unix operating system on which DB2 was already installed, the command
db2iupdt -e must be issued to update the symbolic links to
the header files and libraries in the DB2 instances.
bash$ ./configure --with-IBM_DB2=/path/to/DB2