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Problems with simple C program

Hi,

	I have got SAGE v1.3.1 and I'm trying to learn how it works. 
Since I haven't found anything in the documentation about creating .dep
files from C source code, I tried using c2dep on a simple C program
(included below) but it gave back the error message "Error on line 0 of
(null):  invalid #line" 


	After that, I tried using 'vcc' which first calls the C 
pre-processor, but I got the following error message:

sh: 20455 Memory fault
rm: XX_vpc_tmp.dep: No such file or directory

	The memory fault is caused by 'c2dep' when it tries to parse the 
generated file.


	At last, I tried pC++2dep, on the file generated by cpp and it 
didn't core dump but it produced the following error:

Warning on line 33 of filter.c:  illegal type combination
Error on line 48 of filter.c:   not a proper member or union/struct requierd



	The problem was with the 'putchar()' macro. So I removed it and 
finally it worked. However, I think that there's something I'm not doing 
right. Could you please help me out with this problem? What is the right 
way of generating .dep files from C source code?

	Thanks a lot.					Diego.


------ filter.c --- Just a toy program to see how Sage works --------------- 
#include <stdio.h>
#include <stdlib.h>

main(int argc, char *argv[])
{
	FILE	*file;
	char	*name;
	int	width;

	if (argc == 1)
		{
		fprintf(stderr, "\n");
		fprintf(stderr, "%s - Filters out control characters\n", argv[0]);
		fprintf(stderr, "Usage: %s [-num] file\n", argv[0]);
		fprintf(stderr, "       num: Specifies number of characters per line\n");
		fprintf(stderr, "            Default = 80.\n");
		fprintf(stderr, "\n");
		exit(1);
		}
	else
		{
		if (argc == 3)
			{
			name = argv[2];
			width = atoi(argv[1]);
			}
		else
			{
			name = argv[1];
			width = 80;
			}

		file = fopen(name, "rb");
		if (file == NULL)
			{
			fprintf(stderr, "%s: Can't open file '%s' for input\n", argv[0], name);
			exit(1);
			}
		else
			{
			int	nchars = 1;

			while (!feof(file))
				{
				char	t = getc(file);
				if (t >= 32 || t == '\n' || t == '\t')
					{
					putchar(t);
					if (t == '\n') nchars = 1;
					nchars++;
					if (nchars == width)
						{
						putchar('\n');
						nchars = 1;
						}
					}
				}
			fclose(file);
			}
		}
}
----------------------------------------------------------------------------

--
Diego A. Novillo                  | "We each pay a fabulous price for our
diego@cs.ualberta.ca              |  visions of paradise. But a spirit with
Computing Science - U of Alberta  |  a vision is a dream with a mission"
Edmonton, Alberta - Canada        |             Rush - Mission
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