clang 4.1 attribute warnings when building

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    • Type: Bug
    • Resolution: Done
    • Priority: Major - P3
    • WT2.9.0, 3.2.10, 3.3.12
    • Affects Version/s: None
    • Component/s: None
    • None
    • None
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      When running my build script, something recently changed that is causing many (hundreds of) warnings like the one below. I have a tree from a week ago that gets no warnings at all. I see these on my Mac only. AWS builds cleanly. 

      ../../../src/include/gcc.h:26:53: note: expanded from macro
      'WT_GCC_FUNC_DECL_ATTRIBUTE'
#define WT_GCC_FUNC_DECL_ATTRIBUTE(x) __attribute__(x)
                                                    ^
In file included from ../../../bench/wtperf/wtperf_truncate.c:29:
In file included from ../../../bench/wtperf/wtperf.h:32:
In file included from ../../../test/utility/test_util.h:28:
In file included from ../../../src/include/wt_internal.h:356:
../../../src/include/extern.h:635:107: warning: unknown attribute 'cold' ignored
      [-Wattributes]
  ...*session, const char *uri) WT_GCC_FUNC_DECL_ATTRIBUTE((cold)) ...

      And my compiler:

      % cc --version
Apple clang version 4.1 (tags/Apple/clang-421.11.66) (based on LLVM 3.1svn)
Target: x86_64-apple-darwin12.4.0
Thread model: posix

            Assignee:
            Keith Bostic (Inactive)
            Reporter:
            Susan LoVerso (Inactive)
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              Created:
              Updated:
              Resolved: