adding reentrant to typedef function pointers causes redefinition in code

typedef int     (Writer) (int ,
                                   u_char * ,
                                   u_char ,
                                   size_t ,
                                   u_char * ,
                                   int *) reentrant;

Writer bob;

.
.
.
int     bob(int val1,
            u_char * dat1,
            u_char dat2,
            size_t val2,
            u_char * dat3,
            int *pval) reentrant
{
}

//Comment out Writer bob;
int     (bob)(int val1,
            u_char * dat1,
            u_char dat2,
            size_t val2,
            u_char * dat3,
            int *pval) reentrant;