warning: conflicting types for built-in function bcopy

[Sean Estabrooks]

Hi folks,

I'm wondering why compiling this:

bcopy(char x) 
{ }
main() 
{ }

leads to this warning:
1: warning: conflicting types for built-in function `bcopy'

with either of these compilers supplied with Redhat:
gcc (GCC) 3.3.1 20030930 (Red Hat Linux 3.3.1-6)
gcc32 (GCC) 3.2.3 20030422 (Red Hat Linux 3.2.3-6)

The only reference i found for gcc bcopy options were for 
the pdp-11.

Any tips or pointers to the proper documentation on how to 
remove this warning without renaming the bcopy function  
would be much appreciated.

TIA,
Sean