Possible Bug when compiling .c file

[GTM]

When I try to compile a file by itself (that is without creating a project), it always compiles as C++ for.cpp and .c files. Shouldn't .c files compile as C programs, instead of C++ programs? The only way to compile a C program as a C program (without messing with the toolchain executables) is to create a project and specify it as a C project. Is this a bug? Is there a setting? Two different computers with Code::Blocks do this, so it's not a fluky think on just one machine.