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// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
// rdar://10246395
 
#define WEAK __attribute__ ((weak)) 
 
class WEAK A {
  virtual void foo();
};
 
class B : public A {
  virtual void foo();
};
void A::foo() { }
void B::foo() { }
 
class T {};
class T1 {};
 
class C : public T1, public B, public T {
  virtual void foo();
};
void C::foo() { }
 
class V1 : public virtual A {
  virtual void foo();
};
 
class V2 : public virtual V1 {
  virtual void foo();
};
void V1::foo() { }
void V2::foo() { }

prog.cpp:6:12: warning: ‘weak’ attribute does not apply to types [-Wattributes]
 class WEAK A {
            ^
/usr/lib/gcc/i486-linux-gnu/4.8/../../../i386-linux-gnu/crt1.o: In function `_start':
(.text+0x18): undefined reference to `main'
collect2: error: ld returned 1 exit status

Standard output is empty