The compilers for each platform are listed in Compilers for WebSphere MQ platforms, together with the switches and link libraries to use.
If you are writing programs for the iSeries platform, see Compiling C++ sample programs for iSeries.
If you are writing programs for Windows platforms, see Compiling VisualAge C++ sample programs for Windows.
If you are writing programs for the z/OS platform, see Building an application on z/OS.