🚀 go-pugleaf

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!  It only will produce a
standard (ANSI) C compiler if it was built on a system that already has
a standard C compiler.  I suspect that you, me, and 99% of the prospective
users of Gnu C don't already have a standard C compiler (that's what we
want gcc for!).  In this case the resulting compiler is not K&R C and not
standard C.

This problem as I understand it is the the C compiler maintainers/creators
at Gnu don't consider the (required by the standard) header files to be
part of the C compiler for some perverse reason.  Some library functions
apparently are also not considered part of C by these folks.  So if the
existing header files have missing or wrong information, it is not added or
corrected.  Some common problems I have identified with Gnu C built on a
Sun Sparc with SunOS and the supplied sun (K&R) C compiler are:

in <stdio.h>
	missing prototypes, especially for ungetc, printf family
	missing SEEK_SET, SEEK_CUR, and SEEK_END macros (mistakenly installed
		in <unistd.h>)
	missing typedef for fpos
	bad prototype for fgetpos, fsetpos functions

in <time.h>
	missing macro CLOCKS_PER_SEC
in <signal.h>
	missing typedef for sig_atomic_t

I'm sure other problems exist too.  If you know of any, please sent them
to me and I'll try to keep a list of patches to gcc to make it compliant
with the standard.  (Actually, I hope the maintain of gcc gets mad when he/she
reads this and responds with the reasons why the header files are "not our
problem"!)

Wayne Pollock (The MAD Scientist)
Internet:	pollock@csee.usf.edu