How to Install gcc 4.7.x/4.8.x on CentOS

Question

What would be the easiest way to install gcc 4.7.x/4.8.x on a system with CentOS 6.2+? The default RPM package contains an older version of gcc.

Solution 1

Tru Huynh of centos.org has built the redhat developer toolset 1.1, for centos and it contains gcc 4.7.2

So you could simply use his repo and install just gcc, instantly.

cd /etc/yum.repos.d
wget http://people.centos.org/tru/devtools-1.1/devtools-1.1.repo 
yum --enablerepo=testing-1.1-devtools-6 install devtoolset-1.1-gcc devtoolset-1.1-gcc-c++

This will install it most likely into /opt/centos/devtoolset-1.1/root/usr/bin/

Then you can tell your compile process to use the gcc 4.7 instead of 4.4 with the CC variable

export CC=/opt/centos/devtoolset-1.1/root/usr/bin/gcc  
export CPP=/opt/centos/devtoolset-1.1/root/usr/bin/cpp
export CXX=/opt/centos/devtoolset-1.1/root/usr/bin/c++

Solution 2

Here is how to get devtoolset-2 (including gcc 4.8.1)

This was taken from http://people.centos.org/tru/devtools-2/readme

wget http://people.centos.org/tru/devtools-2/devtools-2.repo -O /etc/yum.repos.d/devtools-2.repo
yum install devtoolset-2-gcc devtoolset-2-binutils devtoolset-2-gcc-c++

Known issues:

• unsigned packages
• CentOS-6 devtoolset-2 needs devtoolset-2-ide which contains the whole Eclipse stack, but does not build yet
• CentOS-6 all the maven related file are not built either

Main changes from devtools-1.1:

• /opt/centos is no longer used
• /opt/rh is now used as upstream (as SL version)

Solution 3

There is new version of devtoolset 2.0. Nice people from Cern working on Scientific Linux created an open version:

If you use CentOS (not Scientific Linux), then you will have to import their GPG key from here using:

rpm --import http://www.scientificlinux.org/documentation/gpg/RPM-GPG-KEY-cern

Enjoy!

Solution 4

# 1. Install a package with repository for your system:
# RHEL 6: `yum-config-manager --enable rhel-server-rhscl-6-rpmss`
# RHEL 7: `yum-config-manager --enable rhel-server-rhscl-7-rpms`
$ sudo yum install centos-release-scl # On CentOS 6/7+, install package centos-release-scl available in CentOS repository

# 2. Install the collection:
$ sudo yum install devtoolset-3

# 3. Start using software collections:
$ scl enable devtoolset-3 bash

$ sudo yum list devtoolset-3\*

Solution 5

there is a problem with devtool1.1 so I did some changes - finally, this worked for me : first run

yum clean all

than :

wget http://people.centos.org/tru/devtools-1.1/devtools-1.1.repo -O /etc/yum.repos.d/devtools-1.1.repo

now open /etc/yum.repos.d/devtools-1.1.repo and change from :

http://people.centos.org/tru/devtools-2/$releasever/$basearch/RPMS

(if you are using x86_64)to:

http://people.centos.org/tru/devtools-1.1/6/x86_64/RPMS/ 

or ((if you are using x86))

http://people.centos.org/tru/devtools-1.1/6/i386/RPMS/

and finally run :

yum install devtoolset-1.1

View more solutions

Comments

[Tomas Andrle]

I asked about 4.7 because it is supposed to have some C++11 features that I need (porting from Clang).

[Tomas Andrle]

So apart from compiling from source there is no, say, website that would have some rpms I could use?

[bbaja42]

Not that I'm aware of, but I'm not very knowledgeable on the topic. RPM repository typicly include the RPM only in it's stable form.

[Admin]

running yum --enablerepo=testing-devtools-6 install devtoolset-1.1-gcc devtoolset-1.1-gcc-c++ returns a four-o-four, .. : image

[ck_]

Thanks for reporting that, looks like he changed the url and repo name slightly for 1.1 and I had just edited it from 1.0 - I fixed it now, I think people.centos.org/tru/devtools-1.1

[Admin]

don't forget to yum clean all before doing the steps again after failure else you will still get 404

[marcin]

instead of setting individual variables you can do scl enable devtoolset-1.1 bash (it starts new shell with all variables set).

[dwurf]

For g++ 4.8.2, change 1.1 to 2 everywhere, and change --enablerepo=testing-1.1-devtools-6 to --enablerepo=testing-devtools-2-centos-6

[Paul Praet]

Does this still work ? I get people.centos.org/tru/devtools-2/6Workstation/i386/RPMS/…: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404"

[Zeks]

it does work, the only problem is that for some reason yum will now try to access: people.centos.org/tru/devtools-2/6Server/x86_64/RPMS/repodat‌​a/… notice 6Server here which is wrong. To get the package you need to edit your repo file to contain this instead of its contents: people.centos.org/tru/devtools-2/6/x86_64/RPMS

[Naveen Sharma]

if you run into assembler errors, don't forget to update your binutils yum install devtoolset-2-gcc devtoolset-2-binutils

[codecowboy]

what does hash -r do?

[codecowboy]

ln -s /opt/rh/devtoolset-2/root/usr/bin/* /usr/local/bin/ broke sudo on my Centos 6.7 system. I think it might alias sudo.

[Denis Denisov]

@codecowboy $PATH every time you type a command by caching the results in memory, hash -r force reload $PATH

[Manuel J. Diaz]

FYI: the above answer still works as of Feb 10 2015 on CentOS 6.7.

[slm]

@Denji - apparently the hop5.in site is no more.

[jemiloii]

I had to export these for it to work. Thanks! export CC=/opt/rh/devtoolset-2/root/usr/bin/gcc export CXX=/opt/rh/devtoolset-2/root/usr/bin/c++ export CPP=/opt/rh/devtoolset-2/root/usr/bin/cpp

[Mark Lakata]

@JemiloII - did you do scl enable devtoolset-2 after installing? That should work to get the correct compilers on the path.

[jemiloii]

that actually works better than the exports!

[B T]

I'm getting http://people.centos.org/tru/devtools-1.1/7/x86_64/RPMS/repo‌​data/repomd.xml: [Errno 14] HTTP Error 404 - Not Found

[Swanidhi]

@MarkLakata - Running scl enable devtoolset-2 throws the following error Need at least 3 arguments. Run scl --help to get help.

[Mark Lakata]

@Swanidhi The full command is scl enable devtoolset-2 bash where the last field could be different if you are not using bash.

[GeorgeKaf]

Still works in September 2016. Tried it for a sass gem and library github.com/sass/sassc-ruby/issues/37#issuecomment-248959463. No errors in Centos 6.8

[Weekend]

It seems that devtoolset-2 is the last version which supports 32-bit.

[FooBee]

may need add --nogpgcheck option : sudo yum install --nogpgcheck devtoolset-3

[Remo Harsono]

the link above is broken now, I found similar key here: [ftp.riken.jp] (ftp.riken.jp/Linux/cern/slc58/x86_64/RPM-GPG-KEYs/…)

[riv]

I'm getting "Connecting to people.centos.org|...|:80... connected. - HTTP request sent, awaiting response... 403 Forbidden"