For cases where it is necessary to use platform dependent code there are macros defined that can be used to enable/disable code for each platform using #ifdef directives:
Qt/Embedded also requires the following flags to be defined when compiling applications:
-DQWS -fno-exceptions -fno-rtti
Exceptions and RTTI are disabled in Qt/Embedded because they incur a large overhead in both size and speed.
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Qt version 2.3.10