[SOLVED] GCC/G++ 4.4.7 issue on RHEL 6.3

bluforce · 03-06-2013, 09:21 AM

Guys,
A bunch of my developers that run RHEL 6.3 are having issues since GCC/G++ was upgraded last night to 4.4.7 (we use run to patch nightly).
Anyways, the same code that compiled yesterday, won't compile today. The version that worked was 4.4.6. Is there a way to downgrade?

We're at a point with our Build now that we can't introduce the risk of a new compiler. Is there a way to downgrade?

TIA!

AlucardZero · 03-06-2013, 09:43 AM

yum downgrade gcc
or - presumably -:
yum install gcc.4.4.6-4.el6

Then lock it in /etc/yum.conf

Then perhaps disable automatic patching on build systems that you don't want be patched.

knudfl · 03-06-2013, 10:04 AM

First thing to do : Add three lines to /etc/yum.conf
.. to prevent updating :

exclude=gcc*
exclude=cpp*
exclude=libgcc*

Remark : The wildcards ( * ) are important. Not to be omitted.

.. And I guess you can replace the packages, ref. #2, @AlucardZero.
I.e. cpp-4.4.7, libgcc-4.4.7, gcc-4.4.7, gcc-c++-4.4.7 ( gcc-gfortran ?),
libstdc++-4.4.7, libstdc++-devel-4.4.7

Update check : rpm -qa --last > last-packages.txt .

-

bluforce · 03-06-2013, 11:26 AM

THis machine actually updated to RHEL 6.4 last night. Anyways, it seems like a tangled mess right now.

Code:

# yum downgrade gcc
Loaded plugins: downloadonly, refresh-packagekit, rhnplugin
This system is receiving updates from RHN Classic or RHN Satellite.
Setting up Downgrade Process
Resolving Dependencies
--> Running transaction check
---> Package gcc.i686 0:4.4.6-4.el6 will be a downgrade
--> Processing Dependency: cpp = 4.4.6-4.el6 for package: gcc-4.4.6-4.el6.i686
--> Processing Dependency: libgomp = 4.4.6-4.el6 for package: gcc-4.4.6-4.el6.i686
---> Package gcc.i686 0:4.4.7-3.el6 will be erased
--> Finished Dependency Resolution
Error: Package: gcc-c++-4.4.7-3.el6.i686 (@rhel-i386-workstation-6)
           Requires: gcc = 4.4.7-3.el6
           Removing: gcc-4.4.7-3.el6.i686 (@rhel-i386-workstation-6)
               gcc = 4.4.4-15.el6
               gcc = 4.4.7-3.el6
           Downgraded By: gcc-4.4.6-4.el6.i686 (rhel-i386-workstation-6)
               gcc = 4.4.6-4.el6
               gcc = 4.4.4-15.el6
           Available: gcc-4.4.4-13.el6.i686 (rhel-i386-workstation-6)
               gcc = 4.4.4-13.el6
           Available: gcc-4.4.5-6.el6.i686 (rhel-i386-workstation-6)
               gcc = 4.4.5-6.el6
               gcc = 4.4.4-15.el6
           Available: gcc-4.4.6-3.el6.i686 (rhel-i386-workstation-6)
               gcc = 4.4.6-3.el6
               gcc = 4.4.4-15.el6
Error: Package: gcc-gfortran-4.4.7-3.el6.i686 (@rhel-i386-workstation-6)
           Requires: gcc = 4.4.7-3.el6
           Removing: gcc-4.4.7-3.el6.i686 (@rhel-i386-workstation-6)
               gcc = 4.4.4-15.el6
               gcc = 4.4.7-3.el6
           Downgraded By: gcc-4.4.6-4.el6.i686 (rhel-i386-workstation-6)
               gcc = 4.4.6-4.el6
               gcc = 4.4.4-15.el6
           Available: gcc-4.4.4-13.el6.i686 (rhel-i386-workstation-6)
               gcc = 4.4.4-13.el6
           Available: gcc-4.4.5-6.el6.i686 (rhel-i386-workstation-6)
               gcc = 4.4.5-6.el6
               gcc = 4.4.4-15.el6
           Available: gcc-4.4.6-3.el6.i686 (rhel-i386-workstation-6)
               gcc = 4.4.6-3.el6
               gcc = 4.4.4-15.el6
Error: Package: gcc-4.4.6-4.el6.i686 (rhel-i386-workstation-6)
           Requires: cpp = 4.4.6-4.el6
           Installed: cpp-4.4.7-3.el6.i686 (@rhel-i386-workstation-6)
               cpp = 4.4.4-15.el6
               cpp = 4.4.7-3.el6
           Available: cpp-4.4.4-13.el6.i686 (rhel-i386-workstation-6)
               cpp = 4.4.4-13.el6
           Available: cpp-4.4.5-6.el6.i686 (rhel-i386-workstation-6)
               cpp = 4.4.5-6.el6
               cpp = 4.4.4-15.el6
           Available: cpp-4.4.6-3.el6.i686 (rhel-i386-workstation-6)
               cpp = 4.4.6-3.el6
               cpp = 4.4.4-15.el6
           Available: cpp-4.4.6-4.el6.i686 (rhel-i386-workstation-6)
               cpp = 4.4.6-4.el6
               cpp = 4.4.4-15.el6
Error: Package: gcc-4.4.6-4.el6.i686 (rhel-i386-workstation-6)
           Requires: libgomp = 4.4.6-4.el6
           Installed: libgomp-4.4.7-3.el6.i686 (@rhel-i386-workstation-6)
               libgomp = 4.4.4-15.el6
               libgomp = 4.4.7-3.el6
           Available: libgomp-4.4.4-13.el6.i686 (rhel-i386-workstation-6)
               libgomp = 4.4.4-13.el6
           Available: libgomp-4.4.5-6.el6.i686 (rhel-i386-workstation-6)
               libgomp = 4.4.5-6.el6
               libgomp = 4.4.4-15.el6
           Available: libgomp-4.4.6-3.el6.i686 (rhel-i386-workstation-6)
               libgomp = 4.4.6-3.el6
               libgomp = 4.4.4-15.el6
           Available: libgomp-4.4.6-4.el6.i686 (rhel-i386-workstation-6)
               libgomp = 4.4.6-4.el6
               libgomp = 4.4.4-15.el6
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

knudfl · 03-06-2013, 11:36 AM

The easy way : Remove the packages, that no other packages depend on :

# yum remove gcc gcc-c++ libstdc++-devel libgomp gcc-gfortran libgfortran

Then downgrade : cpp, libgcc

Now you can install the packages that you want.

-

bluforce · 03-06-2013, 12:35 PM

Thanks guys.

I think we got it with:

Quote:

yum downgrade cpp gcc-c++ gcc-gfortran gcc libgfortran libgomp libstdc++ libstdc++-devel

John VV · 03-06-2013, 10:28 PM

marked solved but

rhel minor upgrades do not change drastically
so moving to gcc 4.4 is only a few added things to the source
a few extra #include< ?????> adding some explicit calls to some libs ( they are not acquired from the parent any more )

adding linking to the lib will stop the DSO errors
"-lm" and "-lGL" are common ones that need to be declared
and 4.4 is old enough that almost every known error IS found in Google

your DEV's might want to read the changes to gcc
the gcc web page is full of the needed documentation