Johnny Hughes wrote:
Tony Schreiner wrote:
On CentOS 4.5 (x86_64); happening on several different machines
with libstdc++ and libstdc++-devel v. 3.4.6-8
only one of the i386 or x86_64 versions of libstc++-devel is installed
if I
yum install libstdc++-devel
it will install the x86_64 version and remove the i386 version, but not
warn me. Similarly if the i386 version is installed it will install the
x86_64 and remove the i386, without warning.
But if i remove libstc++-devel (and necessarily gcc-c++), then reinstall
with
yum install gcc-g++ libstdc++-devel
both versions of libstdc++-devel will be installed.
There is really no easy answer to this question, except that you need to
specify .i386 and .x86_64 in your yum commands.
I almost always do not use any i386 packages on any x86_64 machines
because of this. I always either put this in yum.conf:
exclude=*.i386
or this (on machines I build with):
exclude=exclude=[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefhijklmnopqrstuvwxyz]*.i?86
g[abcdefghijkmnopqrstuvwxyz]*.i?86 glib2*.i?86 glib-*.i?86 glib.i?86
(That allows glibc and glibc-devel)
If you want to use all the i386 programs available in the x86_64 tree,
it is going to require special actions to administer ... and it is not
easy (IMHO). I wish it were easier ... but I am afraid it is not.
Thanks,
Johnny Hughes
Thanks Johnny,
My point was mainly that it seems inconsistent that I could install both
of them if neither one is present, but cannot install the other one if
one is present.
This appears to be different than on Fedora 7 anyway.
I'm not that sure that I need the i386 version on these machines, I
thought I did for the occasional -m32 compilation.
Tony Schreiner
Biology Department
Boston College
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