Moving from CentOS to Ubuntu (opens in new tab)

(btorpey.github.io)

3 pointswallstprog5y ago5 comments

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LinuxBender5y ago· 2 in thread

From the article "past several years figuring out things like how to build newer compilers in order to take advantage of improvements in C++ and related tools."

This is much easier to solve in CentOS and RHEL than building new tools. Redhat has done this for you. If you are a developer and need newer build tools, enable the SCLO repo.

  yum install centos-release-scl && yum install devtoolset-9

Or devtoolset-8, whichever has the versions of tools you need. Then in your build script or global environment script, use

  PATH="/opt/rh/devtoolset-9/root/bin:${PATH}"
  scl_source enable devtoolset-9

To get an idea of what versions of tools are in which devtoolsets, visit a repo mirror [1].

[1] - http://mirror.centos.org/centos-7/7/sclo/x86_64/rh/Packages/...

wallstprogOP5y ago

A couple of things:

- RH devtoolset doesn't support clang, only gcc

-The compilers installed with the devtoolset packages on RH/CentOS 6 & 7 do not support the _GLIBCXX_USE_CXX11_ABI flag -- the old ABI (COW strings) is the only one supported. See https://bugzilla.redhat.com/show_bug.cgi?id=1546704 and https://stackoverflow.com/questions/50836145/glibcxx-use-cxx... for more info.

LinuxBender5y ago

For clang, you can use:

  scl_source enable llvm-toolset-7

though I can't speak to any workarounds for the _GLIBCXX_USE_CXX11_ABI flag.

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