fred wrote: > sorry if I confused readers. > > the source gcc downloaded I have is gcc-3.4.4 > it seems the library is part of the gcc with cygwin. > and the library I'm referring to is in the libiberty sub-directory. > a config.h file does get generated (configured) in that directory. > > The "newlib" you are referring to, I don't see anything referred to as > "newlib" in the cygwin setup???
You're quite confused. libiberty is a support library used internally by gcc itself (and other tools like binutils.) It has absolutely nothing to do with what happens when you compile something containing a printf(). Gcc is just the compiler, it does not include the C library. On the Cygwin platform the C library is provided entirely by cygwin1.dll. Internally this is partly based on newlib for implmentation of some of the standard C I/O routines. If you want to see how printf() is implemented you need to look at the Cygwin source, not the gcc source. IIRC newlib does have limited support for long long in I/O routines like printf and scanf, but it's not full support. And I don't know if this applies to native 32 bit targets, or if it's only for 64 bit targets (neither gcc nor binutils have been ported to 64 bit PE/COFF yet AFAIK.) Brian -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
