GLIBCXX_3.4.15 and GLIBCXX_3.4.20 missing from libstdc++.so

[Jonathan Wakely]

On 5 April 2017 at 12:50, Olumide wrote:
> Hello List,
>
> While building a project on CentOS machine that I set up myself (and guilt
> gcc for) I get the following errors about GLIBCXX_3.4.15 and GLIBCXX_3.4.20

Because you built against a new libstdc++ and are trying to run the
executable against an older libstdc++, which isn't supported.

> ../boost/stage/lib/libboost_regex.so: undefined reference to
> `std::invalid_argument::~invalid_argument()@GLIBCXX_3.4.15'
> ../boost/stage/lib/libboost_filesystem.so: undefined reference to
> `std::__throw_out_of_range_fmt(char const*, ...)@GLIBCXX_3.4.20'
> ../boost/stage/lib/libboost_regex.so: undefined reference to
> `std::__detail::_List_node_base::_M_transfer(std::__detail::_List_node_base*,
> std::__detail::_List_node_base*)@GLIBCXX_3.4.15'
> ../boost/stage/lib/libboost_regex.so: undefined reference to
> `std::overflow_error::~overflow_error()@GLIBCXX_3.4.15'
> ../boost/stage/lib/libboost_regex.so: undefined reference to
> `std::__detail::_List_node_base::_M_unhook()@GLIBCXX_3.4.15'
> ../boost/stage/lib/libboost_regex.so: undefined reference to
> `std::__detail::_List_node_base::_M_hook(std::__detail::_List_node_base*)@GLIBCXX_3.4.15'
>
> Here is the output of the command
> strings /usr/lib64/libstdc++.so.6 | grep GLIBCXX

You're looking at a file in /usr/lib64, but ...

> version info of CentOS machine:
>
> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.9.2/lto-wrapper
> Target: x86_64-unknown-linux-gnu
> Configured with: ./configure --disable-multilib --enable-languages=c,c++
> Thread model: posix
> gcc version 4.9.2 (GCC)

This is installed in /usr/local

That means its libraries will be in /usr/local/lib64, not /usr/lib64

You need to understand how shared libraries work, and read
https://gcc.gnu.org/onlinedocs/libstdc++/faq.html#faq.how_to_set_paths