http://www.perlmonks.org?node_id=1011896


in reply to Hints on compiling Win32::GUI::Header

if there's a way to tell gcc to compile "0U-300U" into something that ends up being effectively -300 in the object code.

Eeek! Subtracting an unsigned integer from unsigned zero to derive an negative (signed) integer is just weird!

#define HDN_FIRST -300 #define HDN_BEGINTRACK (HDN_FIRST-26) into Header.xs and live with the compiler warnings. But that's just ugly.

If that works and the only concern is the compiler noise, perhaps you can shut them up by preceding your #defines with:

#undef HDN_FIRST #define HDN_FIRST -300 #define HDN_BEGINTRACK (HDN_FIRST-26)

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