Hello, > i try to compile snmp++ v3.2.23 on aix5.as make -f Makefile.aix5,but > the compiler report can't find the rule for %.cpp .the compiler is > xlC version 6,what should i do to make it.thanks just an assumption, as I don't have access to an aix system: The Makefile is written for GNU make, so try with gmake. Regards, Jochen