Compile problem

[rualark]

I get error compiling on FreeBSD 5.4:

Making all in poller
if gcc -DHAVE_CONFIG_H -I. -I. -I../../../include -I../../../include -I/usr/local/include/mysql -g -O2 -MT checks_agent.o -MD -MP -MF ".deps/checks_agent.Tpo" -c -o checks_agent.o checks_agent.c; then mv -f ".deps/checks_agent.Tpo" ".deps/checks_agent.Po"; else rm -f ".deps/checks_agent.Tpo"; exit 1; fi
if gcc -DHAVE_CONFIG_H -I. -I. -I../../../include -I../../../include -I/usr/local/include/mysql -g -O2 -MT checks_internal.o -MD -MP -MF ".deps/checks_internal.Tpo" -c -o checks_internal.o checks_internal.c; then mv -f ".deps/checks_internal.Tpo" ".deps/checks_internal.Po"; else rm -f ".deps/checks_internal.Tpo"; exit 1; fi
if gcc -DHAVE_CONFIG_H -I. -I. -I../../../include -I../../../include -I/usr/local/include/mysql -g -O2 -MT checks_simple.o -MD -MP -MF ".deps/checks_simple.Tpo" -c -o checks_simple.o checks_simple.c; then mv -f ".deps/checks_simple.Tpo" ".deps/checks_simple.Po"; else rm -f ".deps/checks_simple.Tpo"; exit 1; fi
if gcc -DHAVE_CONFIG_H -I. -I. -I../../../include -I../../../include -I/usr/local/include/mysql -g -O2 -MT checks_snmp.o -MD -MP -MF ".deps/checks_snmp.Tpo" -c -o checks_snmp.o checks_snmp.c; then mv -f ".deps/checks_snmp.Tpo" ".deps/checks_snmp.Po"; else rm -f ".deps/checks_snmp.Tpo"; exit 1; fi
In file included from checks_snmp.c:20:
checks_snmp.h:35:39: net-snmp/net-snmp-config.h: No such file or directory
checks_snmp.h:36:41: net-snmp/net-snmp-includes.h: No such file or directory
checks_snmp.c: In function `get_value_snmp':
checks_snmp.c:29: error: storage size of 'session' isn't known
checks_snmp.c:37: error: syntax error before "anOID"

Please help