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Red Hat Software Collections "Software Collections give you the power to build, install, and use multiple versions of software on the same system, without affecting system-wide installed packages"

For instance, RHEL6 comes with gcc 4.4.7, but also provides 6.3.1 via Software Collections (SCL).  Newer versions of build-time package are available (eg, gcc, valgrind, make, etc) and run-time packages too (python, ruby, php, git, mariadb, maven, nodejs, perl, java, nginx, mysql, mongodb, postgresql, redis, etc).

And there are other related RPMs (fortran, c++, etc.). To see what is available run the command

scl -l
yum list installed | grep rhscl | grep -v '^ '

The yum repo for SCL is SLAC RHEL6 Server Software Collections (slac-rhel-x86_64-server-6-rhscl-1). These are installed on public login hosts, if you do not have sudo on a host where it is needed, please send an email to unix-admin@slac.stanford.edu. 

For  Red Hat Developer Toolset Product Life Cycle please see:  https://access.redhat.com/support/policy/updates/dts/ 

The current RPM names (versions subject to change) for the versions of gcc are:

ksa@rhel6-64l $ rpm -q devtoolset-6
devtoolset-6-6.1-1.el6.x86_64

The meta RPM "devtoolset-6" will install other meta RPMs: devtoolset-6-{perftools, runtime, toolchain}.  Here's an example with devtoolset-4-toolchain:

ksa@iris02 $ rpm -q --requires devtoolset-4-toolchain
devtoolset-4-runtime  
devtoolset-4-gcc  
devtoolset-4-gcc-c++  
devtoolset-4-gcc-gfortran  
devtoolset-4-binutils  
devtoolset-4-gdb  
devtoolset-4-strace  
devtoolset-4-dwz  
devtoolset-4-elfutils  
devtoolset-4-memstomp  
devtoolset-4-ltrace  

 

To use the newer versions in a bash script after the RPMs are installed:

#-----------------------------------------
# to enable newer gcc from software collections:
# (replace devtoolset-4 with current version of devtoolset)
#-----------------------------------------
if [ -x /opt/rh/devtoolset-4/enable ]; then
  echo Enabling GCC from Developer Toolset
  source /opt/rh/devtoolset-4/enable
fi

 

To use the newer versions on the command line after the RPMs are installed:

user@host $ scl enable devtoolset-4 bash
bash-4.1$ gcc --version
gcc (GCC) 5.2.1 20150902 (Red Hat 5.2.1-2)
bash-4.1$ exit
ksa@iris02 $ scl enable devtoolset-4 'gcc --version'
gcc (GCC) 5.2.1 20150902 (Red Hat 5.2.1-2)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

 

How to install Developer Toolset / Software Collections on CentOS 7:

$ sudo yum install centos-release-scl
$ sudo yum install devtoolset-6
$ scl enable devtoolset-6  'gcc --version | head -1'
gcc (GCC) 6.2.1 20160916 (Red Hat 6.2.1-3)

 

 

 

The Red Hat Developer Toolset (DTS) is intended to give developers access to updated compilers and tools for C and C++ development.

This fast-moving product will update frequently and will have a much shorter product life cycle and support term than Red Hat Enterprise Linux.

For more information on Red Hat Software Collections and Developer Toolset:

https://access.redhat.com/support/policy/updates/rhscl
https://access.redhat.com/support/policy/updates/dts/
https://www.softwarecollections.org/

 

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