In file included from /home/vasudev/Documents/C_programming/compilers/9-cc/Linux/386/include/lib9.h:9:0,
from 9obj.c:5:
/usr/include/features.h:148:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
# warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"