amd64-ucontext.h:3:25: warning: redefinition of typedef 'mcontext_t' is a C11 feature
amd64-ucontext.h:4:25: warning: redefinition of typedef 'ucontext_t' is a C11 feature
context.c:86:3: warning: indirection of non-volatile null pointer will be deleted, not trap
print.c:106:10: warning: variable ‘neg’ set but not used
tcpproxy.c:55:25: warning: cast to pointer from integer of different size
tcpproxy.c:64:7: warning: cast from pointer to integer of different size
testdelay.c:15:12: warning: cast from pointer to integer of different size
testdelay.c:16:32: warning: cast from pointer to integer of different size
testdelay.c:31:25: warning: cast to pointer from integer of different size