[LLVMbugs] [Bug 9786] New: gcc incompatiblity: -Wunused-functions warns about unused functions in unnamed namespaces

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=9786

           Summary: gcc incompatiblity: -Wunused-functions warns about
                    unused functions in unnamed namespaces
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: nicolasweber at gmx.de
                CC: llvmbugs at cs.uiuc.edu, dgregor at apple.com


$ cat test.cc
namespace {
void f() {}
}
$ gcc -Wunused-functions test.cc
$ clang -Wunused-functions test.cc
test.cc:2:6: warning: unused function 'f' [-Wunused-function]
void f() {}
     ^
1 warning generated.


clang r129794 suggests that clang tries to be compatible with gcc here, so this
warning should be moved to -Wunneeded-internal-declaration.

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