| sean finney on 12 Dec 2005 22:52:24 -0000 |
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On Mon, Dec 12, 2005 at 04:36:58PM -0500, Doug Crompton wrote: > This issue with gcc compatibility brings up a question. What are the > implications of having multiple gcc compilers on the same system? How > would one go about doing that? My current system has gcc4. What prior > version of gcc3 should I install? depends on your distribution, and how you install it. on debian, for example, you have different gcc's installed as /usr/bin/gcc-$version and /usr/bin/gcc is a symlink usually pointing at the latest version. there's also a /usr/bin/cc, which is a symlink into the alternatives system (thus the admin can control what 'cc' invokes). currently in debian sid there's a 2.95, 3.3, 3.4, and 4.0 version out there. i have 3.3 and 4.0 on my laptop... i don't have much to say about 3.x, but i've found 4.x to be slow and occasionally buggy--which is why i guess i have two versions laying around. but that's just me. anyway, regardless of whether you install a distro's package or something in /usr/local/gcc-foo, you can get most autotools packages to happily use your version of gcc simply by doing something like CC=/path/to/cc ./configure --prefix.... for other software packages, you might have to manually edit makefiles, or make sure that your gcc comes first in PATH. sean Attachment:
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