Add GNU tools to PASE or 5733OPS

We have developed a build system for native ILE code that we are preparing to release as open source. When coupled with a source control product like Git and bug tracking software like Trac (or Jira), it should provide a free (or nearly free) change management system for developing standard RPG, C, CL, etc. code and objects.

To work, some GNU tools are required to be installed in PASE: Awk, Grep, Make, and Sed. To date, only older, non-GNU versions exist in PASE.

We have installed the GNU tools on our system from the AIX packages on the perzl.org site, but it is a complicated process to do so, and the tools are not as recent as could be. For any sort of widespread adoption of this build system, there will need to be an easier way to get these tools onto an IBM i. If PASE shipped with GNU versions, that would be terrific, but including them in the 5733OPS product would also be great, as 5733OPS needs to be installed for this build system to work, anyway.

Multiple developers are developing and maintaining native IBM i software. Code is added, modified, and committed to the source code repository. To compile, a build is initiated to compile objects in a specified library from source code in a specified IFS directory. Only code that has been changed from the previous build is compiled, as well as any upstream consumers of that code. Object and source dependencies are respected, so if, for example, the DDS is changed for a logical file, then the LF will be recompiled, as well as any modules that use it, plus any service programs or programs that include those modules. Likewise, if a header file is changed, then all code that `#include`s or `/include`s or `/copy`s it will be recompiled.