for CentOS, do scl without sudo

I ran into a problem following these instructions, and this change got me past it. The command in question enables access to the C++ compiler (puts it on the PATH or something like that). If you do it with `sudo`, it leaves you at a root shell prompt. If you then exit that root prompt, to go back to non-root, then g++ is no longer accessible. If you want to compile as non-root, then you need to do `scl` as non-root.

for CentOS, do scl without sudo
I ran into a problem following these instructions, and this change got me past it. The command in question enables access to the C++ compiler (puts it on the PATH or something like that). If you do it with `sudo`, it leaves you at a root shell prompt. If you then exit that root prompt, to go back to non-root, then g++ is no longer accessible. If you want to compile as non-root, then you need to do `scl` as non-root.
dd9bacd6 · Gene · GitHub · 606edc90 · dd9bacd6
Unverified Commit dd9bacd6 authored 7 years ago by Gene Committed by GitHub 7 years ago
--- a/doc/compile_Linux.md
+++ b/doc/compile_Linux.md
@@ -43,7 +43,7 @@
    # CentOS
    sudo yum install centos-release-scl epel-release
    sudo yum install cmake3 devtoolset-4-gcc* hwloc-devel libmicrohttpd-devel openssl-devel make
-    sudo scl enable devtoolset-4 bash
+    scl enable devtoolset-4 bash
    git clone https://github.com/fireice-uk/xmr-stak.git
    mkdir xmr-stak/build
    cd xmr-stak/build