[sumo-user] Compile C code

[Thanhnt Nguyen <thanhnt.fit@xxxxxxxxx>]

Dear all

My project has some C functions and while building the project I got an error. It reads: you have both .cc and .cpp files -- specify -e cc or -e cpp option to select which set of files to use

Could you please tell me how to specify "-e cc" in Omnet++? I looked at Project Properties but I don't see where and how to specify these options

Thank you in advance