Greetings. I seek assistance with a GCC-related source of error, which is illustrated with the help of sample code below: 1) FILE * f; 2) f = fopen(argv[1], "r"); 3) fclose(f); 4) FILE * f1; 5) f1 = fopen(argv[1], "r"); 6) while ((c = fgetc(f)) != EOF){ ... ... As you will notice in the sequence of steps in the illustrative code above, in line 6 a fgetc() call to file 'f' is made instead of 'f1'. This situation, a cause of segmentation fault on a non-Cygwin machine, was not encountered by Cygin's gcc compiler. In fact, the code compiles and runs successfully on Cygwin. Would appreciate assistance with addressing the situation. Look forward to a prompt response. Best regards, Gaurav