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/* A redefinition of an empty struct should be diagnosed the same as a

   redefinition of any other tag, but formerly only s2 and s4 were

   diagnosed.  Bug 17188.  */

/* Origin: Joseph Myers <jsm@polyomino.org.uk> */

/* { dg-do compile } */

/* { dg-options "" } */

struct s0 { };

struct s0;

struct s0 { }; /* { dg-error "error: redefinition of 'struct s0'" } */

struct s1 { };

struct s1 { }; /* { dg-error "error: redefinition of 'struct s1'" } */

struct s2 { int a : 1; };

struct s2 { int a : 1; }; /* { dg-error "error: redefinition of 'struct s2'" } */

struct s3 { };

struct s3 { int a : 1; }; /* { dg-error "error: redefinition of 'struct s3'" } */

struct s4 { int a : 1; };

struct s4 { }; /* { dg-error "error: redefinition of 'struct s4'" } */

struct s5 { int a : 1; };

struct s5;

struct s6;

struct s6 { int a : 1; };

struct s7;

struct s7 { };