🚀 go-pugleaf

pollock@eggo.usf.edu (Wayne Pollock) writes:

>In a previous article ICP%ANDESCOL.BITNET@mitvma.mit.edu (Gabriel Perez) writes:
>>I have your compiler installed on a Solbourne (Sparc clone) machine; I
>>am trying to install the f2c package from AT&T, but an error occurs
>>because reportedly the ungetc function is not declared; I have tried
>>including your stdio.h (which is supossed to be the proper header file
>>according to the ANSI C documentation I got) but it does not work; can you
>>please give me a hint on what is happenning?    Thank you .
>
>The answer is simple: Gnu C (gcc) is NOT ANSI C!

No, it's not that simple.  The ANSI C standard defines two different
sorts of conforming implementations: hosted implementations, and
non-hosted implementations.  GNU C _is_ a conforming non-hosted
implementation, but isn't a conforming hosted implementation.  That
means that it doesn't provide the standard library.  It does however do
a reasonable job of letting you use whatever C library already exists
on your system, and even fixes up the header files a bit.

>It only will produce a
>standard (ANSI) C compiler if it was built on a system that already has
>a standard C compiler.

Actually, all you need is a standard ANSI C library.
You can use the GNU C Library `glibc' (eg. Linux uses glibc),
although I have heard that at this stage it has not been ported
to many of the platforms that gcc has been ported to (or is
still fairly buggy on many platforms, or something).

-- 
Fergus Henderson                     fjh@munta.cs.mu.OZ.AU