I have modified src/plugins/compilergcc/resources/compiler_options.xrc to be more suitable for MacOSX.
A wxWidgets bug makes the dialog tabs not fit within the available space, see the images,
I propose to include it in the svn, as I do not think this will make a noticable difference under Windows, however I have not checked Linux.
If there really is a need for a specific __WXMAC__ patch for this, someone would have to modify src/plugins/compilergcc/compileroptionsdlg.cpp.
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