[Bug fortran/52347] -Wno-tabs -Wall -Wno-tabs still warns about tabs

[Simon.Richter at hogyros dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52347

--- Comment #4 from Simon Richter <Simon.Richter at hogyros dot de> ---
Testcase is simple:

$ cat tt.cpp

void bar(int baz) { }

$ g++-4.7 -c -W -Wall -Werror -Wno-unused tt.cpp 

$ g++-4.8 -c -W -Wall -Werror -Wno-unused tt.cpp 
tt.cpp:1:6: error: unused parameter ‘baz’ [-Werror=unused-parameter]
 void bar(int baz) { }
      ^
cc1plus: all warnings being treated as errors