[Bug c++/54376] incorrect complaint about redefinition

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54376

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-08-25 19:50:30 UTC ---
Clang and EDG accept the reduced testcase, but every GCC I tried back to 4.1.2
rejects it, with a different error for 4.1.2:

r.cc:10: error: ambiguous overload for 'operator==' in 'x1 == x1'
r.cc:3: note: candidates are: bool operator==(x<T>, x<T>) [with T = int,
<template-parameter-1-1> = int]
r.cc:3: note:                 bool operator==(x<T>, x<T>) [with T = int,
<template-parameter-1-1> = double]
r.cc:11: error: ambiguous overload for 'operator==' in 'x2 == x2'
r.cc:3: note: candidates are: bool operator==(x<T>, x<T>) [with T = double,
<template-parameter-1-1> = int]
r.cc:3: note:                 bool operator==(x<T>, x<T>) [with T = double,
<template-parameter-1-1> = double]