"Changes of default constructor" build failure(s)
clang 6.0
This code is a defect of the C++ standard:
http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#1344
class foo {
    int a;
    foo(int);
};
foo::foo(int c = 5) : a(c) {
}
| Package | Version | Supposed error message | Full log | Bug report | 
|---|
| gem | 1:0.93.3-16 | gemlist_matrix.cpp:37:46: error: addition of default argument on redeclaration makes this constructor a default constructor | Log |  | 
             
| gtkguitune | 0.8-6 | lcdview.cc:26:31: error: addition of default argument on redeclaration makes this constructor a default constructor | Log |  | 
             
| ucimf-openvanilla | 2.10.11-3 | openvanilla.cpp:32:33: error: addition of default argument on redeclaration makes this constructor a default constructor | Log | 753337 | 
             
3 errors