[LLVMbugs] [Bug 7216] New: clang++ silently accepts flags it doesn't understand

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon May 24 15:03:25 PDT 2010


           Summary: clang++ silently accepts flags it doesn't understand
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: chris at bubblescope.net
                CC: llvmbugs at cs.uiuc.edu, dgregor at apple.com

'clang++ -mnot-a-flag -fnot-a-flag t.cc' runs, and silently ignores the -m and
-f flags it does not understand. Adding -Wnot-a-flag produces the useful:

warning: unknown warning option '-Wnot-a-fla' [-Wunknown-warning-option]

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