[llvm-bugs] [Bug 33852] New: Defining __STDC_WANT_LIB_EXT1__ causes reserved-id-macro warning

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33852

            Bug ID: 33852
           Summary: Defining __STDC_WANT_LIB_EXT1__ causes
                    reserved-id-macro warning
           Product: clang
           Version: 4.0
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: mohd.akram at outlook.com
                CC: llvm-bugs at lists.llvm.org

Doing this:

#define __STDC_WANT_LIB_EXT1__ 1

causes:

warning: macro name is a reserved identifier [-Wreserved-id-macro]

Defining __STDC_WANT_LIB_EXT1__ is valid in C11.

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