[libcxx] r285382 - Add __libcpp_version file and __libcpp_library_version function.

[Eric Fiselier via cfe-commits]

It appears you're testing fresh headers against a system installed libc++
library. Can you confirm this was your intention?

Either way I'll correct the test to handle this.

/Eric


On Fri, Oct 28, 2016 at 3:22 AM, Ismail Donmez <ismail at i10z.com> wrote:

> Hi,
>
> On Fri, Oct 28, 2016 at 9:06 AM, Eric Fiselier via cfe-commits
> <cfe-commits at lists.llvm.org> wrote:
> > Author: ericwf
> > Date: Fri Oct 28 01:06:50 2016
> > New Revision: 285382
> >
> > URL: http://llvm.org/viewvc/llvm-project?rev=285382&view=rev
> > Log:
> > Add __libcpp_version file and __libcpp_library_version function.
> >
> > This patch does two seperate things. First it adds a file called
> > "__libcpp_version" which only contains the current libc++ version
> > (currently 4000). This file is not intended for use as a header. This
> file
> > is used by Clang in order to easily determine the installed libc++
> version.
> > This allows Clang to enable/disable certain language features only when
> the
> > library supports them.
> >
> > The second change is the addition of _LIBCPP_LIBRARY_VERSION macro, which
> > returns the version of the installed dylib since it may be different than
> > the headers.
>
> The test seems to be failing here:
>
> [ 7087s] ******************** TEST 'libc++ :: libcxx/version.pass.cpp'
> FAILED ********************
> [ 7087s] Compiled With:
> ['/home/abuild/rpmbuild/BUILD/llvm/stage1/bin/clang++', '-o',
> '/home/abuild/rpmbuild/BUILD/llvm/stage2/projects/libcxx/
> test/libcxx/Output/version.pass.cpp.o',
> '-x', 'c++', '/home/abuild/rpmbuild/BUILD/llvm/projects/libcxx/test/
> libcxx/version.pass.cpp',
> '-c', '-v', '-Werror=thread-safety', '-std=c++1z', '-include',
> '/home/abuild/rpmbuild/BUILD/llvm/projects/libcxx/test/
> support/nasty_macros.hpp',
> '-nostdinc++', '-I/home/abuild/rpmbuild/BUILD/llvm/projects/libcxx/
> include',
> '-D__STDC_FORMAT_MACROS', '-D__STDC_LIMIT_MACROS',
> '-D__STDC_CONSTANT_MACROS',
> '-I/home/abuild/rpmbuild/BUILD/llvm/projects/libcxx/test/support',
> '-DLIBCXX_FILESYSTEM_STATIC_TEST_ROOT="/home/abuild/
> rpmbuild/BUILD/llvm/projects/libcxx/test/std/experimental/
> filesystem/Inputs/static_test_env"',
> '-DLIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT="/home/abuild/
> rpmbuild/BUILD/llvm/stage2/projects/libcxx/test/
> filesystem/Output/dynamic_env"',
> '-DLIBCXX_FILESYSTEM_DYNAMIC_TEST_HELPER="/usr/bin/python2.7
> /home/abuild/rpmbuild/BUILD/llvm/projects/libcxx/test/
> support/filesystem_dynamic_test_helper.py"',
> '-c', '&&', '/home/abuild/rpmbuild/BUILD/llvm/stage1/bin/clang++',
> '-o', '/home/abuild/rpmbuild/BUILD/llvm/stage2/projects/libcxx/
> test/libcxx/Output/version.pass.cpp.exe',
> '/home/abuild/rpmbuild/BUILD/llvm/stage2/projects/libcxx/
> test/libcxx/Output/version.pass.cpp.o',
> '-v', '-L/home/abuild/rpmbuild/BUILD/llvm/stage2/lib64',
> '-Wl,-rpath,/home/abuild/rpmbuild/BUILD/llvm/stage2/lib64',
> '-nodefaultlibs', '-lc++experimental', '-lc++', '-lm', '-lgcc_s',
> '-lgcc', '-lpthread', '-lc', '-lgcc_s', '-lgcc']
> [ 7087s] Command: ['env',
> 'LIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT=/home/abuild/
> rpmbuild/BUILD/llvm/stage2/projects/libcxx/test/
> filesystem/Output/dynamic_env',
> '/home/abuild/rpmbuild/BUILD/llvm/stage2/projects/libcxx/
> test/libcxx/Output/version.pass.cpp.exe']
> [ 7087s] Exit Code: -6
> [ 7087s] Standard Error:
> [ 7087s] --
> [ 7087s] version.pass.cpp.exe:
> /home/abuild/rpmbuild/BUILD/llvm/projects/libcxx/test/
> libcxx/version.pass.cpp:26:
> int main(): Assertion `_LIBCPP_VERSION == _LIBCPP_LIBRARY_VERSION'
> failed.
>
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