sac5@rack25 ~ $ cc snmptest.c
In file included from /usr/include/net-snmp/definitions.h:22,
                 from /home/sac5/net-snmp-5.3.1/include/net-snmp/net-snmp-includes.h:71,
                 from snmptest.c:2:
/usr/include/net-snmp/types.h:95: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'typedef'
In file included from /usr/include/net-snmp/utilities.h:46,
                 from /home/sac5/net-snmp-5.3.1/include/net-snmp/net-snmp-includes.h:74,
                 from snmptest.c:2:
/usr/include/net-snmp/library/snmp_alarm.h:53: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'alarm_handler'
In file included from /usr/include/net-snmp/library/snmp_logging.h:14,
                 from /usr/include/net-snmp/library/container.h:19,
                 from /usr/include/net-snmp/utilities.h:54,
                 from /home/sac5/net-snmp-5.3.1/include/net-snmp/net-snmp-includes.h:74,
                 from snmptest.c:2:
/usr/lib/gcc/i686-pc-linux-gnu/4.1.1/include/varargs.h:4:2: error: #error "GCC no longer implements <varargs.h>."
/usr/lib/gcc/i686-pc-linux-gnu/4.1.1/include/varargs.h:5:2: error: #error "Revise your code to use <stdarg.h>."
In file included from /usr/include/net-snmp/library/container.h:19,
                 from /usr/include/net-snmp/utilities.h:54,
                 from /home/sac5/net-snmp-5.3.1/include/net-snmp/net-snmp-includes.h:74,
                 from snmptest.c:2:
/usr/include/net-snmp/library/snmp_logging.h:58: error: expected declaration specifiers or '...' before 'va_list'
snmptest.c: In function 'main':
snmptest.c:29: warning: incompatible implicit declaration of built-in function 'exit'
snmptest.c:35: error: 'SNMP_VERSION_2' undeclared (first use in this function)
snmptest.c:35: error: (Each undeclared identifier is reported only once
snmptest.c:35: error: for each function it appears in.)