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List:       boost-users
Subject:    [Boost-users] [Log] linker errors after update from 1.57 to 1.59
From:       Glenn Ramsey <gr () componic ! co ! nz>
Date:       2015-10-25 18:57:06
Message-ID: 562D2602.3040306 () componic ! co ! nz
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Hi,

After updating a project to use Boost 1.59 from 1.57 I am getting link errors
like this:

Undefined symbols for architecture i386:
  "boost::log::v2_mt_posix::basic_formatter<char>
boost::log::v2_mt_posix::parse_formatter<char>(char const*, char const*)",
referenced from:
      boost::log::v2_mt_posix::basic_formatter<char>
boost::log::v2_mt_posix::parse_formatter<char>(char const*)

BOOST_LOG_DYN_LINK has been defined and the build works with 1.57. This is on
OSX 10.10.5 with Xcode 6.4 and with command line builds using clang (Apple LLVM
version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)).

Boost was built using this command line:

./b2 --prefix=$HOME/rp/boost-1_59_0 cxxflags="-stdlib=libc++ -arch i386
-mmacosx-version-min=10.7" linkflags="-stdlib=libc++ -arch i386
-mmacosx-version-min=10.7" --with-python --with-signals --with-thread
--with-date_time --with-filesystem --with-regex --with-chrono --with-log
link=shared architecture=x86 install

What do I need to do fix this?

Glenn
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