root@gonzalo-desktop:/home/gonzalo/ltsp/sysvinit-2.86.ds1/src# gcc -static -o shutdown shutdown.c
shutdown.c: In function 'spawn':
shutdown.c:257: error: 'environ' undeclared (first use in this function)
shutdown.c:257: error: (Each undeclared identifier is reported only once
shutdown.c:257: error: for each function it appears in.)