<div dir="ltr">I realised that part of the issue is that 

<span style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">devtoolset-4<span> isn't supported. Unfotunately I really need that version, as my clients don't support newer versions of gcc. I know it's not officially supported, but what will happen if I use the latest scl and try to install </span></span><div><span style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span><br></span></span></div><div><span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="font-size:12.8px"><a href="https://centos.pkgs.org/7/centos-sclo-rh-testing/devtoolset-4-gcc-c++-5.3.1-6.1.el7.x86_64.rpm.html">https://centos.pkgs.org/7/centos-sclo-rh-testing/devtoolset-4-gcc-c++-5.3.1-6.1.el7.x86_64.rpm.html</a></span><br></span></div><div><span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="font-size:12.8px"><br></span></span></div><div><span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="font-size:12.8px">please?</span></span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Aug 2, 2018 at 4:16 PM, Mohan Ganesalingam <span dir="ltr"><<a href="mailto:mohan0@gmail.com" target="_blank">mohan0@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Pavel,<br><br>Thanks for this. I can install devtoolset-4-gcc-c++.x86_64 fine, but to use it I run<div><br>scl enable devtoolset-4 <command> <br><br>and that's what fails. </div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Aug 2, 2018 at 4:06 PM, Pavel Valena <span dir="ltr"><<a href="mailto:pvalena@redhat.com" target="_blank">pvalena@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">----- Original Message -----<br>
> From: "Mohan Ganesalingam" <<a href="mailto:mohan@what3words.com" target="_blank">mohan@what3words.com</a>><br>
> To: <a href="mailto:sclorg@redhat.com" target="_blank">sclorg@redhat.com</a><br>
> Sent: Thursday, August 2, 2018 4:54:07 PM<br>
> Subject: [<a href="http://scl.org" rel="noreferrer" target="_blank">scl.org</a>] Can't install SCL<br>
> <br>
> I've just been trying to install SCL (in docker's centos:6 image), like so:<br>
> <br>
> docker run -it centos:6 /bin/bash<br>
> yum -y update && yum install -y centos-release-scl<br>
<br>
I think centos-release-scl will just install the repos for you.<br>
<br>
> scl<br>
> <br>
> I get back /bin/sh: scl: command not found<br>
> <br>
> I've tried looking for scl with find, with no luck. This used to work<br>
> (a few days ago)... I've been using it in CI for a while. Any help<br>
> would be much appreciated...<br>
> <br>
<br>
Try installing some actual SCL, f.e.:<br>
<br>
  $ sudo yum install rh-ruby24<br>
<br>
<a href="https://www.softwarecollections.org/en/scls/rhscl/rh-ruby24/" rel="noreferrer" target="_blank">https://www.softwarecollection<wbr>s.org/en/scls/rhscl/rh-ruby24/</a><br>
<br>
<br>
HIH,<br>
<span class="m_-4105740981336672969HOEnZb"><font color="#888888"><br>
-- <br>
Pavel Valena<br>
Software Engineer, Red Hat<br>
Brno, Czech Republic<br>
</font></span></blockquote></div><br></div>
</div></div></blockquote></div><br></div>