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[Iain Lane <iain@xxxxxxxxxxxxxxxxxxx>]

backported + uploaded the mentioned commit - this bug probably needs SRU
information per comment #26 before it'll be accepted though.

thanks!

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https://bugs.launchpad.net/bugs/1501300

Title:
  Wily (15.10) this package got not compiled with __cxx11 support

Status in llvm-toolchain-3.4 package in Ubuntu:
  In Progress
Status in llvm-toolchain-3.4 source package in Wily:
  New

Bug description:
  This packages does not contain any __cxx11 symbols when installed. This causes the problem that user-space applications cannot link successfully to it.
  Recompile the (untouched) dpkg source package on the same machine and installing it solved the problem.

  There seems something in the package generation broken.

  Steps to reproduce try to compile the attached minimal example
  https://github.com/goldhoorn/clang-sandbox

  
  Errors:
  CMakeFiles/main.dir/main.cpp.o: In function `foo()':
  /tmp/clang-sandbox/main.cpp:25: undefined reference to `clang::NamedDecl::getQualifiedNameAsString[abi:cxx11]() const'
  CMakeFiles/main.dir/main.cpp.o: In function `clang::QualType::getAsString[abi:cxx11](clang::SplitQualType)':
  /usr/lib/llvm-3.4/include/clang/AST/Type.h:868: undefined reference to `clang::QualType::getAsString[abi:cxx11](clang::Type const*, clang::Qualifiers)'
  CMakeFiles/main.dir/main.cpp.o: In function `clang::ast_matchers::internal::matcher_matchesName0Matcher::matches(clang::NamedDecl const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const':
  /usr/lib/llvm-3.4/include/clang/ASTMatchers/ASTMatchers.h:1439: undefined reference to `clang::NamedDecl::getQualifiedNameAsString[abi:cxx11]() const'
  CMakeFiles/main.dir/main.cpp.o: In function `clang::ast_matchers::internal::matcher_hasName0Matcher::matches(clang::NamedDecl const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const':
  /usr/lib/llvm-3.4/include/clang/ASTMatchers/ASTMatchers.h:1411: undefined reference to `clang::NamedDecl::getQualifiedNameAsString[abi:cxx11]() const'
  /usr/lib/llvm-3.4/lib/libclangAST.a(ExprConstant.o): In function `handleIntIntBinOp((anonymous namespace)::EvalInfo&, clang::Expr const*, llvm::APSInt const&, clang::BinaryOperatorKind, llvm::APSInt, llvm::APSInt&)':
  (.text+0x6a35): undefined reference to `llvm::APInt::toString(unsigned int, bool) const'
  /usr/lib/llvm-3.4/lib/libclangAST.a(StmtPrinter.o): In function `(anonymous namespace)::StmtPrinter::VisitIntegerLiteral(clang::IntegerLiteral*) [clone .isra.302]':

  ...

  This example is workign on privious ubuntus and debians

  Sysinfo:
  Description:	Ubuntu Wily Werewolf (development branch)
  Release:	15.10
  In a VirtualBox

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