[llvm-bugs] [Bug 31315] New: Microsoft warning even when using -fms-extensions

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=31315

            Bug ID: 31315
           Summary: Microsoft warning even when using -fms-extensions
           Product: new-bugs
           Version: 3.9
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: hmijail at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

When using anonymous structs with "clang -fms-extensions", eg.

struct s1 {
...
}
struct s2 {
...
}

union u1 {
    struct s1;
    struct s2;
}

I get a warning "anonymous structs are a Microsoft extension
[-Wmicrosoft-anon-tag]".
This warning seems unnecessary, given that extensions have been enabled
explicitly with -fms-extensions.

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