Porting Introduction

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Porting Introduction

You need to consider the issues in the following sections before you port to a new environment.

Environment Setup

Adoption of the configure scripts required.


One of the main issues for porting the office suite is to have a working C++ compiler. The following C++ features cause the most difficulties for compilers:

  • Use of the Standard Template Library (STL). The office suite uses STLport 4.x, which is an SGI STL adaptation. Conflicts can arise with native includes. By default for new linux ports configure will default to using the compilers STL and not STLport 4.x, this is the recommended approach where possible.
  • Deliberate use of templates as a whole.
  • Namespaces.
  • Exceptions, using exceptions over shared library boundaries (run the ehtest suite in STLport for verification)
  • Order of initialization and destruction of global objects, especially since there are a lot of different but dependent shared libraries involved.
  • Usage of GCC on most platform recommended (2.95, 3.0 and 3.1 currently supported)

Platform-Dependent Implementation

The most difficult part about platform-dependent implementation is language binding, since it requires some knowledge of the CPU architecture and how the compiler constructs vtables and so on. This is a time-consuming activity. For existing ports, this is implemented in the module bridges. Loading Shared Libraries

Another area where some development might be necessary is the loading of shared libraries. The source code assumes the availability of dlopen() and associated files. For example HPUX 10.x uses something like shl_load() and names shared libraries differently, however the necessary changes should be minor.

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