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.

ck_ · Answer 1 · 2013-03-12T10:44:38.537

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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++

edited Mar 12 '13 at 10:44

answered Jan 26 '13 at 13:54

ck_

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running `yum --enablerepo=testing-devtools-6 install devtoolset-1.1-gcc devtoolset-1.1-gcc-c++` returns a four-o-four, .. : [image](http://img690.imageshack.us/img690/354/screenshotrafalcentos6v.png) – Mar 12 '13 at 07:28
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 http://people.centos.org/tru/devtools-1.1/ – ck_ Mar 12 '13 at 10:45
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don't forget to `yum clean all` before doing the steps again after failure else you will still get 404 – Mar 12 '13 at 11:18
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instead of setting individual variables you can do `scl enable devtoolset-1.1 bash` (it starts new shell with all variables set). – marcin Mar 28 '13 at 11:42
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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` – dwurf Apr 15 '14 at 23:28
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Does this still work ? I get http://people.centos.org/tru/devtools-2/6Workstation/i386/RPMS/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404" – Paul Praet May 21 '14 at 09:21
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it does work, the only problem is that for some reason yum will now try to access: http://people.centos.org/tru/devtools-2/6Server/x86_64/RPMS/repodata/repomd.xml notice 6Server here which is wrong. To get the package you need to edit your repo file to contain this instead of its contents: http://people.centos.org/tru/devtools-2/6/x86_64/RPMS/ – Zeks Jun 09 '14 at 13:35
if you run into assembler errors, don't forget to update your binutils `yum install devtoolset-2-gcc devtoolset-2-binutils` – Naveen Sharma Oct 21 '15 at 07:54
FYI: the above answer still works as of Feb 10 2015 on CentOS 6.7. – Manuel J. Diaz Feb 10 '16 at 19:54
I'm getting `http://people.centos.org/tru/devtools-1.1/7/x86_64/RPMS/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found` – B T Jun 16 '16 at 08:12
Still works in September 2016. Tried it for a sass gem and library https://github.com/sass/sassc-ruby/issues/37#issuecomment-248959463. No errors in Centos 6.8 – GeorgeKaf Sep 23 '16 at 12:39

score 43 · Answer 2 · edited Jun 30 '14 at 02:35

43

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)

edited Jun 30 '14 at 02:35

Cristian Ciupitu

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answered Apr 17 '14 at 23:09

Mark Lakata

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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 – jemiloii Mar 09 '16 at 19:49
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@JemiloII - did you do `scl enable devtoolset-2` after installing? That should work to get the correct compilers on the path. – Mark Lakata Mar 09 '16 at 21:58
that actually works better than the exports! – jemiloii Mar 09 '16 at 22:22
@MarkLakata - Running `scl enable devtoolset-2` throws the following error `Need at least 3 arguments. Run scl --help to get help.` – Swanidhi Jul 05 '16 at 15:45
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@Swanidhi The full command is `scl enable devtoolset-2 bash` where the last field could be different if you are not using bash. – Mark Lakata Jul 05 '16 at 17:16
It seems that `devtoolset-2` is the last version which supports 32-bit. – Weekend Feb 14 '17 at 08:56
I'm getting "Connecting to people.centos.org|...|:80... connected. - HTTP request sent, awaiting response... 403 Forbidden" – riv Mar 08 '21 at 14:51

score 29 · Answer 3 · edited Nov 15 '13 at 14:27

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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!

edited Nov 15 '13 at 14:27

David

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answered Nov 15 '13 at 13:21

JiriHnidek

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the link above is broken now, I found similar key here: [ftp.riken.jp] (http://ftp.riken.jp/Linux/cern/slc58/x86_64/RPM-GPG-KEYs/RPM-GPG-KEY-cern) – Remo Harsono Nov 10 '17 at 08:36

Denis Denisov · Answer 4 · 2016-04-05T00:52:22.420

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# 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\*

edited Apr 05 '16 at 00:52

answered Nov 18 '13 at 20:33

Denis Denisov

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what does ```hash -r``` do? – codecowboy Jan 12 '16 at 18:34
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. – codecowboy Jan 13 '16 at 09:29
@codecowboy `$PATH` every time you type a command by caching the results in memory, `hash -r` force reload $PATH – Denis Denisov Jan 13 '16 at 12:04
@Denji - apparently the hop5.in site is no more. – slm Feb 23 '16 at 20:10
may need add `--nogpgcheck` option : `sudo yum install --nogpgcheck devtoolset-3` – FooBee Jul 13 '17 at 08:17

score 2 · Answer 5 · answered Jan 22 '12 at 15:21

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From what I can see from the gnu gcc, latest stable version is 4.62. The version 4.7 can be downloaded and compiled, more info on the gcc installation.

answered Jan 22 '12 at 15:21

bbaja42

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I asked about 4.7 because it is supposed to have some C++11 features that I need (porting from Clang). – Tomas Andrle Jan 22 '12 at 19:01
So apart from compiling from source there is no, say, website that would have some rpms I could use? – Tomas Andrle Jan 22 '12 at 19:02
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. – bbaja42 Jan 22 '12 at 20:28

score 2 · Answer 6 · answered Jun 29 '14 at 22:23

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neither one of these answers worked for me.
even in the shell of devtoolset is still saw my gcc 4.4.7.
My trick was the following:

mv /usr/bin/gcc /usr/bin/gcc.bckup
ln -s /opt/centos/devtoolset-1.1/root/usr/bin/gcc /usr/bin/gcc

answered Jun 29 '14 at 22:23

Dylan Westra

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yehudahs · Answer 7 · 2014-09-14T11:32:23.033

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

score 0 · Answer 8 · answered May 13 '12 at 06:30

0

One way of achieving this would be to fetch src RPMs from the fedora repositories and recompile them for your target system.
Fedora 17 and later provide gcc 4.7

answered May 13 '12 at 06:30

user1055604

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

8 Answers8

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