gcc-4.9/gcc/testsuite/g++.dg/lookup/anon6.C


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extern int v1; // { dg-message "declared" }
static union { int v1; }; // { dg-error "redeclaration" } 

static union { int v2; }; // { dg-message "declared" }
extern int v2; // { dg-error "redeclaration" } 

int v3; // { dg-message "declared" }
static union { int v3; }; // { dg-error "redeclaration" } 

static union { int v4; }; // { dg-message "declared" }
static union { int v4; }; // { dg-error "redeclaration" }