🚀 go-pugleaf

>I believed I have successfully installed gcc  2.2.1 and libg++,  all into
>the default local locations. Unfortunately, I now get strange errors:
>
>#include <stdio.h>
>double describe(double *p, FILE *f) {
>  fprintf(f, "Say: %lf", p[ 1 ]);
>  return p[1];
>}}
>$ cc -Wall -c try.c
>try.c: In function `describe':
>try.c:4: warning: use of `l' length character with `f' type character
>
>I believe this  is because the new  gcc  tries  to use some  of  the old
>include files. I figured this out by using the -E option.

This has *nothing* to do with include files.  In ANSI-C you can't use
"l" and "f" in the same format specification.  For example, refer to
page 111 of Plauger and Brodie, "Standard C", a *must-have* quick ref.
You should change your example to:

double describe(double *p, FILE *f) {
  fprintf(f, "Say: %f", p[ 1 ]);
  return p[1];
}

or

double describe(long double *p, FILE *f) {
  fprintf(f, "Say: %Lf", p[ 1 ]);	/* Note use of CAPITAL "L" */
  return p[1];
}

--Marc Ullman
  Stanford University