[alkis]

ansi.c

#include <stdio.h>


/* Note - using two character <CSI> ESC[.  Hex 9B could be used instead */
#define RESETCON  "\033c"
#define CURSOFF   "\033[0 p"
#define CURSON    "\033[ p"
#define DELCHAR   "\033[P"

/* SGR (set graphic rendition) */
#define COLOR02   "\033[32m"
#define COLOR03   "\033[33m"
#define ITALICS   "\033[3m"
#define BOLD      "\033[1m"
#define UNDERLINE "\033[4m"
#define NORMAL    "\033[0m"

int main(int argc, char *argv[])
{
  printf(BOLD "This is bold text!\n" NORMAL);
  return 0;
}

compile with

m68k-amigaos-gcc -Os -s -noixemul -o ansi ansi.c

works for me.