[llvm-bugs] [Bug 31036] New: libc++ has problems building with ccache

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=31036

            Bug ID: 31036
           Summary: libc++ has problems building with ccache
           Product: libc++
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: renato.golin at linaro.org
                CC: llvm-bugs at lists.llvm.org, mclow.lists at gmail.com
    Classification: Unclassified

For example:

http://buildmaster.tcwglab.linaro.org/builders/libcxx-libcxxabi-libunwind-arm-linux/builds/248

******************** TEST 'libc++ ::
support/test.support/test_macros_header_exceptions.fail.cpp' FAILED
********************
Command: ['/usr/lib/ccache/clang++', '-o', '/dev/null', '-x', 'c++',
'/home/buildslave/buildslave/libcxx-libcxxabi-libunwind-arm-linux/llvm/projects/libcxx/test/support/test.support/test_macros_header_exceptions.fail.cpp',
'-c', '-v', '-Werror=thread-safety', '-std=c++1z', '-include',
'/home/buildslave/buildslave/libcxx-libcxxabi-libunwind-arm-linux/llvm/projects/libcxx/test/support/nasty_macros.hpp',
'-nostdinc++',
'-I/home/buildslave/buildslave/libcxx-libcxxabi-libunwind-arm-linux/llvm/projects/libcxx/include',
'-D__STDC_FORMAT_MACROS', '-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS',
'-I/home/buildslave/buildslave/libcxx-libcxxabi-libunwind-arm-linux/llvm/projects/libcxx/test/support',
'-DLIBCXX_FILESYSTEM_STATIC_TEST_ROOT="/home/buildslave/buildslave/libcxx-libcxxabi-libunwind-arm-linux/llvm/projects/libcxx/test/std/experimental/filesystem/Inputs/static_test_env"',
'-DLIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT="/home/buildslave/buildslave/libcxx-libcxxabi-libunwind-arm-linux/build/projects/libcxx/test/filesystem/Output/dynamic_env"',
'-DLIBCXX_FILESYSTEM_DYNAMIC_TEST_HELPER="/usr/bin/python2.7
/home/buildslave/buildslave/libcxx-libcxxabi-libunwind-arm-linux/llvm/projects/libcxx/test/support/filesystem_dynamic_test_helper.py"',
'-fsyntax-only', '-Xclang', '-verify', '-Xclang',
'-verify-ignore-unexpected=note', '-ferror-limit=1024', '-c']
Exit Code: 1

...

End of search list.
error: no expected directives found: consider use of 'expected-no-diagnostics'
1 error generated.


Same error for support/test.support/test_macros_header_rtti.fail.cpp

This seems to be a known issue. I just want to create the bug here, so that if
anyone ever looks at this, I'll know. :)

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