can't build w/expensive checks

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#1

I get the error below when trying to build clang with expensive checks. Works fine w/o these. Is this a known problem?

This is on Ubuntu Hardy using this compiler:

regehr@john-home:~$ g++ --version
g++ (GCC) 4.2.4 (Ubuntu 4.2.4-1ubuntu4)

Thanks,

John Regehr

make[4]: Entering directory `/home/regehr/z/tmp/llvm-r80385/tools/clang/lib/Basic'
llvm[4]: Compiling Builtins.cpp for Release+Checks build
llvm[2]: Linking Release+Checks executable llvm-db (without symbols)
In file included from /usr/include/c++/4.2/debug/debug.h:141,
                  from /usr/include/c++/4.2/bits/stl_algobase.h:78,
                  from /usr/include/c++/4.2/algorithm:65,
                  from /home/regehr/z/tmp/llvm-r80385/include/llvm/ADT/StringRef.h:13,
                  from /home/regehr/z/tmp/llvm-r80385/include/llvm/ADT/StringMap.h:17,
                  from /home/regehr/z/tmp/llvm-r80385/tools/clang/lib/Basic/../../include/clang/Basic/IdentifierTable.h:20,
                  from Builtins.cpp:15:
/usr/include/c++/4.2/debug/formatter.h: In constructor ‘__gnu_debug::_Error_formatter::_Parameter::_Parameter(const __gnu_debug::_Safe_iterator<_Iterator, _Sequence>&, const char*, __gnu_debug::_Error_formatter::_Is_iterator)’:
/usr/include/c++/4.2/debug/formatter.h:218: error: cannot use typeid with -fno-rtti

#2

Hi John,

I get the error below when trying to build clang with expensive checks. Works fine w/o these. Is this a known problem?

this is a bug in libstdc++, and has been fixed here:
http://gcc.gnu.org/viewcvs?view=revision&revision=147599
If you can't pick up the fix, try compiling clang without the
-fno-rtti option.

Ciao,

Duncan.

#3

Hmmm, this used to work, at least it didn't on Aug 07 on x86_64:
  http://google1.osuosl.org:8011/builders/clang-x86_64-linux-check

- Daniel

#4

Hmmm, this used to work, at least it didn't on Aug 07 on x86_64:
  http://google1.osuosl.org:8011/builders/clang-x86_64-linux-check

-fno-rtti wasn't used in the build of clang, it started being used in
the build after a Makefile fix:

Author: Eric Christopher <echristo@apple.com>

    Separate out Makefile defines so that we can keep the llvm
    defined ones from the user defined ones. Propagate accordingly.

    git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79308
91177308-0d34-0410-b5e6-96231b3b80d8

What should be done about the clang-x86_64-linux-check buildbot, install
that libstdc++ patch?

Best regards,
--Edwin

#5

Hmmm, this used to work, at least it didn't on Aug 07 on x86_64:
http://google1.osuosl.org:8011/builders/clang-x86_64-linux-check

-fno-rtti wasn't used in the build of clang, it started being used in
the build after a Makefile fix:

I see. Funny no one caught this before.

What should be done about the clang-x86_64-linux-check buildbot, install
that libstdc++ patch?

I don't like changing anything on the buildbot system, part of the
value of keeping all configuration in the buildbot / host is that
installing / replacing a slave is just a matter of installing
buildbot.

Would it be terrible to just build with RTTI for expensive checks builds?

- Daniel