Suddenly I need GMP and MPFR?
Sat Apr 19 04:23:00 GMT 2008
On Apr 18, 2008, at 1:18 PM, David Daney wrote:
> Rick Mann wrote:
>> Thank you; I should've checked that first.
>> I'm not sure I understand how GCC uses these libraries. If I'm
>> cross-compiling for AVR, shouldn't the library be built on AVR?
>> This creates a new chicken-and-egg problem, doesn't it?
> No, the libraries are only used by the compiler proper. They allow
> the compiler to do constant folding at compile time and get the same
> answer that the processor would have gotten.
>> If I build GMP/MPFR for Mac OS X using Xcode (assuming it'll even
>> build; apparently there are issues with Apple's GCC), that will
>> build libraries that execute on OS X/i386. Is that the only
>> capacity in which GMP/MPFR are used by GCC?
>> Or does it attempt to generate target code that uses it?
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