ptrace: check, that PTRACE_LISTEN isn't defined yet
ptrace: check, that PTRACE_LISTEN isn't defined yet

In file included from arch/x86/crtools.c:11:0:
include/ptrace.h:16:0: error: "PTRACE_LISTEN" redefined [-Werror]
 #define PTRACE_LISTEN  0x4208
 ^
In file included from include/ptrace.h:5:0,
                 from arch/x86/crtools.c:11:
/usr/include/sys/ptrace.h:150:0: note: this is the location of the previous definition
 #define PTRACE_LISTEN PTRACE_LISTEN
 ^
cc1: all warnings being treated as errors
make[1]: *** [arch/x86/crtools.o] Error 1

Signed-off-by: Andrew Vagin <74c05afa918858348d6db8037d82fa8124870113@openvz.org>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@parallels.com>

svloyso/criu,eabatalov/criu,marcosnils/criu,tych0/criu,biddyweb/criu,tych0/criu,efiop/criu,efiop/criu,kawamuray/criu,eabatalov/criu,marcosnils/criu,LK4D4/criu,gonkulator/criu,fbocharov/criu,gonkulator/criu,gablg1/criu,marcosnils/criu,wtf42/criu,ldu4/criu,marcosnils/criu,LK4D4/criu,svloyso/criu,eabatalov/criu,marcosnils/criu,KKoukiou/criu-remote,svloyso/criu,rentzsch/criu,KKoukiou/criu-remote,AuthenticEshkinKot/criu,fbocharov/criu,gablg1/criu,KKoukiou/criu-remote,kawamuray/criu,tych0/criu,rentzsch/criu,LK4D4/criu,KKoukiou/criu-remote,gablg1/criu,KKoukiou/criu-remote,efiop/criu,sdgdsffdsfff/criu,kawamuray/criu,fbocharov/criu,sdgdsffdsfff/criu,wtf42/criu,svloyso/criu,marcosnils/criu,gonkulator/criu,gablg1/criu,wtf42/criu,sdgdsffdsfff/criu,eabatalov/criu,biddyweb/criu,LK4D4/criu,gonkulator/criu,biddyweb/criu,wtf42/criu,gablg1/criu,ldu4/criu,ldu4/criu,eabatalov/criu,KKoukiou/criu-remote,gonkulator/criu,AuthenticEshkinKot/criu,LK4D4/criu,sdgdsffdsfff/criu,rentzsch/criu,AuthenticEshkinKot/criu,LK4D4/criu,rentzsch/criu,tych0/criu,biddyweb/criu,gonkulator/criu,fbocharov/criu,gablg1/criu,biddyweb/criu,fbocharov/criu,ldu4/criu,AuthenticEshkinKot/criu,tych0/criu,AuthenticEshkinKot/criu,efiop/criu,AuthenticEshkinKot/criu,eabatalov/criu,sdgdsffdsfff/criu,ldu4/criu,wtf42/criu,efiop/criu,kawamuray/criu,fbocharov/criu,kawamuray/criu,wtf42/criu,tych0/criu,biddyweb/criu,svloyso/criu,ldu4/criu,rentzsch/criu,efiop/criu,sdgdsffdsfff/criu,rentzsch/criu,kawamuray/criu,svloyso/criu