[cfe-dev] [libc++] r160604 appears to have broken libc++ on linux

[Andrew C. Morrow]

On Tue, Jul 24, 2012 at 3:53 PM, Howard Hinnant <hhinnant at apple.com> wrote:
> On Jul 24, 2012, at 3:15 PM, "Andrew C. Morrow" <andrew.c.morrow at gmail.com> wrote:
>
>> Thank you for your help investigating this. I reduced the test case a bit:
>
> I'm working on a theory.  Question:  Are you building libc++ with -std=c++11?
>
> Howard
>

I just double checked, and it is building libc++ with -std=c++0x. I'm
using the CMake build for libc++, which passes it automatically. Here
is a representative compile line:

/home/acm/opt/bin/clang++   -Dcxx_EXPORTS -DNDEBUG
-I/home/acm/opt/include  -g -fPIC
-I/home/acm/Documents/Develop/externals/clang-toolchain/src/libcxx/include
   -nostdinc++ -std=c++0x -Wall -W -Wno-unused-parameter
-Wwrite-strings -Wno-long-long -pedantic -fPIC -o
CMakeFiles/cxx.dir/__/src/bind.cpp.o -c
/home/acm/Documents/Develop/externals/clang-toolchain/src/libcxx/src/bind.cpp

My CMake and make invocation looks like this:

#!/bin/bash -ex

export CC=/home/acm/opt/bin/clang
export CXX=/home/acm/opt/bin/clang++

export CXXFLAGS="-I/home/acm/opt/include"
LINKOPTS="-L/home/acm/opt/lib -lc++abi -Wl,-z,origin -Wl,--no-undefined"

Prefix=/home/acm/opt/

( cmake -DLIT_EXECUTABLE=/home/acm/Documents/Develop/externals/clang-toolchain/src/llvm/utils/lit/lit.py
\
        -DCMAKE_BUILD_TYPE=Debug \
        -DCMAKE_INSTALL_PREFIX=$Prefix \
        -DCMAKE_INSTALL_RPATH=\$ORIGIN/../lib \
        -DCMAKE_SHARED_LINKER_FLAGS="$LINKOPTS" \
         ../../../src/libcxx && \
make -j2 all VERBOSE=1 && \
make install ) \
2>&1 | tee ../libcxx.build.log

Thanks,
Andrew