mtrapier@prod-500 /cygdrive/c/dev/test $ gcc --version
gcc (GCC) 3.3.3 (cygwin special)
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

mtrapier@prod-500 /cygdrive/c/dev/test $ gcc test.c -o test -W -Wall
test.c: In function `main':
test.c:9: warning: unused parameter `argc'
test.c:9: warning: unused parameter `argv'
mtrapier@prod-500 /cygdrive/c/dev/test $ ./test
x = 1 | z = 0
x = 3 | z = 2
x = 5 | z = 6
x = 6 | z = 10
x = 7 | z = 12
mtrapier@prod-500 /cygdrive/c/dev/test $

(j'ai pas fait de cat de test, mais bon tout le monde a compris que c'était le meme fichier)