#define _GNU_SOURCE /* for asprintf */
#include <stdlib.h> /* for free and system */
#include <string.h> /* for __FILE__ */
#include <stdio.h>
#define str(s) #s
#define xstr(s) str(s)
#define FT(s) \
int main() \
{ \
\
	char *before = "\
		#define _GNU_SOURCE /* for asprintf */\n\
		#include <stdlib.h> /* for free and system */\n\
		#include <string.h> /* for __FILE__ */\n\
		#include <stdio.h>\n\
		#define str(s) #s\n\
		#define xstr(s) str(s)\n\
		#define FT(s) "; \
	char *quine = s; \
	char *after = "\
		\n\
		int i = %i;\n\
		char *file_name = %s;\n\
		FT(xstr(FT(s)))\n"; \
\
	if (i == 0) \
		return 0; \
	if ((strchr(file_name, '_')) != ((void*)0)) \
		i--;\
\
	char *kid_name; \
	char *kid_name_c; \
	char *after_expanded; \
	char *cmd; \
\
	asprintf(&kid_name, "Sully_%i", i); \
	asprintf(&kid_name_c, "%s.c", kid_name); \
\
	FILE *file = fopen(kid_name_c, "w"); \
	asprintf(&after_expanded, after, i, "__FILE__"); \
	fprintf(file, "%s%s%s", before, quine, after_expanded); \
	fclose(file); \
\
	asprintf(&cmd, "clang %1$s -o %2$s ; ./%2$s", kid_name_c, kid_name); \
	system(cmd); \
\
	free(cmd); \
	free(kid_name_c); \
	free(kid_name); \
	free(after_expanded); \
	return 0; \
}
int i = 5;
char *file_name = __FILE__;
FT(xstr(FT(s)))