Re: [gentoo-user] gcc question
On Sun, 2 Apr 2006 21:00:39 -0700, Lord Sauron wrote: From what I read, if you have half a package using gcc3.3 and the other half 3.4 or something, that won't work. If that were true, how would the system function while recompiling the other half of the packages? There may be some issues with running a mixed system, but nothing so serious as it won't work. -- Neil Bothwick Crash: (v.) to terminate a program in the usual fashion, i.e. by locking up the computer or setting fire to the printer. (n.) the process of such termination. signature.asc Description: PGP signature
Re: [gentoo-user] gcc question
yeah no what im really asking is am i going to run into problems if i 'upgrade' to gcc3.4 and do not, as recommended in the notes that are displayed after emerging gcc3.4, recompile all my c++ packages with gcc3.4. is the version of libstdc++.so which is linked to determined by the compiler currently in use as determined by gcc-config? is it not possible to have different programs run against different versions of c++ shared libraries?On 4/3/06, Neil Bothwick [EMAIL PROTECTED] wrote: On Sun, 2 Apr 2006 21:00:39 -0700, Lord Sauron wrote: From what I read, if you have half a package using gcc3.3 and the other half 3.4 or something, that won't work.If that were true, how would the system function while recompiling the other half of the packages?There may be some issues with running a mixed system, but nothing soserious as it won't work.--Neil BothwickCrash: (v.) to terminate a program in the usual fashion, i.e. by lockingup the computer or setting fire to the printer. (n.) the process of suchtermination.
Re: [gentoo-user] gcc question
On 4/2/06, Leigh Stewart [EMAIL PROTECTED] wrote: thanks richard. is it safe to have compiled half a system with gcc 3.3 ubt to be compiling new packages with 3.4? No, that's a very bad idea. It should not be necessary to rebuild the whole system with the new compiler, but you should at least follow the revdep-rebuild path of upgrading the compiler. http://www.gentoo.org/doc/en/gcc-upgrading.xml#upgrade-3.3-to-3.4 The problem is the libstdc++ library. If you don't at least do the revdep-rebuild, you could end up with some things that are linked against both libstdc++.so.6 and libstdc++.so.5, and they will crash miserably. -Richard -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] gcc question
On 4/3/06, Leigh Stewart [EMAIL PROTECTED] wrote: is the version of libstdc++.so which is linked to determined by the compiler currently in use as determined by gcc-config? Yes. is it not possible to have different programs run against different versions of c++ shared libraries? Different programs, yes. But for example the Qt library links against libstdc++. So do all KDE applications. So if you built Qt against libstdc++.so.5, and then build a KDE application that will link against .6, that program will crash. -Richard -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] gcc question
Richard Fish [EMAIL PROTECTED] writes: The problem is the libstdc++ library. If you don't at least do the revdep-rebuild, you could end up with some things that are linked against both libstdc++.so.6 and libstdc++.so.5, and they will crash miserably. On a system with gcc = 3.4, opera is linked against both libstdc++.so.5 (from the distributed binary) and libstdc++.so.6 (from natively compiled libraries) but this does not seem to prevent it from running. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] gcc question
skype seems to be linked to libstdc++.so.6. (its a binary) would it hurt to switch to gcc3.4 just to compile libstdc++.so.6 so that skype has something to link to, and then switch back? On 4/3/06, Graham Murray [EMAIL PROTECTED] wrote: Richard Fish [EMAIL PROTECTED] writes: The problem is the libstdc++ library.If you don't at least do the revdep-rebuild, you could end up with some things that are linked against both libstdc++.so.6 and libstdc++.so.5, and they will crash miserably.On a system with gcc = 3.4, opera is linked against bothlibstdc++.so.5 (from the distributed binary) and libstdc++.so.6 (fromnatively compiled libraries) but this does not seem to prevent it from running.--gentoo-user@gentoo.org mailing list
Re: [gentoo-user] gcc question
On 4/3/06, Leigh Stewart [EMAIL PROTECTED] wrote: skype seems to be linked to libstdc++.so.6. (its a binary) would it hurt to switch to gcc3.4 just to compile libstdc++.so.6 so that skype has something to link to, and then switch back? You can definitely do this. You can install gcc 3.4 which will give you a libstdc++.so.6 library, and then set the system compiler back to 3.3 with gcc-config. So you will continue to use 3.3 for building all system updates, but you will have 3.4 installed as well. Sorry if my original reply didn't make this clear. -Richard -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] gcc question
On 4/3/06, Graham Murray [EMAIL PROTECTED] wrote: On a system with gcc = 3.4, opera is linked against both libstdc++.so.5 (from the distributed binary) and libstdc++.so.6 (from natively compiled libraries) but this does not seem to prevent it from running. You've gotten very lucky. There is a reason that opera provides separate downloads for systems with libstdc++.so.5 and .6. Try searching their forums. -Richard -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] gcc question
no, thanks you've been a great help :) --another happy gentoo userOn 4/3/06, Richard Fish [EMAIL PROTECTED] wrote: On 4/3/06, Leigh Stewart [EMAIL PROTECTED] wrote: skype seems to be linked to libstdc++.so.6.(its a binary) would it hurt to switch to gcc3.4 just to compile libstdc++.so.6 so that skype has something to link to, and then switch back?You can definitely do this.You can install gcc 3.4 which will giveyou a libstdc++.so.6 library, and then set the system compiler back to3.3 with gcc-config.So you will continue to use 3.3 for building allsystem updates, but you will have 3.4 installed as well.Sorry if my original reply didn't make this clear.-Richard--gentoo-user@gentoo.org mailing list
Re: [gentoo-user] gcc question
Richard Fish [EMAIL PROTECTED] writes: You've gotten very lucky. There is a reason that opera provides separate downloads for systems with libstdc++.so.5 and .6. Try searching their forums. So would it not be a good idea for portage to install the appropriate version depending on whether the 'main' libstdc++ is so.5 or so.6? -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] gcc question
On 4/3/06, Graham Murray [EMAIL PROTECTED] wrote: Richard Fish [EMAIL PROTECTED] writes: You've gotten very lucky. There is a reason that opera provides separate downloads for systems with libstdc++.so.5 and .6. Try searching their forums. So would it not be a good idea for portage to install the appropriate version depending on whether the 'main' libstdc++ is so.5 or so.6? I believe so, yes. If it ever does anything strange, I would probably do a portage overlay with a modified ebuild that pulls the .6 version, and see if that resolves the problem. If so, file a bug report. But please do not file a bug report that says 'opera ebuild should pull the version that matches system gcc because Richard says so...'. :-) -Richard -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] gcc question
thanks richard. is it safe to have compiled half a system with gcc 3.3 ubt to be compiling new packages with 3.4?On 4/2/06, Richard Fish [EMAIL PROTECTED] wrote:On 4/1/06, Leigh Stewart [EMAIL PROTECTED] wrote: I just tried to install skype, it wont start, and in the logs it tells me it cant find libstdc++.so.6, which doesnt surprise me because it doesnt exist on my system. im using gcc 3.3.5 and im guessing that libstdc++.so.6 is libstdc++.so compiled with gcc 3.4.5.how can i solve this problem? i dont have time to rebuild my system right now.can i slot the compiler or something? The compiler is slotted, so you can just do emerge --oneshot=sys-devel/gcc-3.4.5-r1 and then use gcc-config to set your compilerback to the 3.3.5 version.-Richard-- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] gcc question
On 4/2/06, Leigh Stewart [EMAIL PROTECTED] wrote: thanks richard. is it safe to have compiled half a system with gcc 3.3 ubt to be compiling new packages with 3.4? From what I read, if you have half a package using gcc3.3 and the other half 3.4 or something, that won't work. However, I don't see a reason why not... YMMV, if nothing else. -- == GCv3.12 == GCS d-(++) s+: a? C++ UL+ P+ L++ E--- W+(+++) N++ o? K? w--- O? M+ V? PS- PE+ Y-(--) PGP- t+++ 5? X R tv-- b+ DI+++ D+ G e* h- !r !y = END GCv3.12 -- gentoo-user@gentoo.org mailing list
[gentoo-user] gcc question
I just tried to install skype, it wont start, and in the logs it tells me it cant find libstdc++.so.6, which doesnt surprise me because it doesnt exist on my system. im using gcc 3.3.5 and im guessing that libstdc++.so.6 is libstdc++.so compiled with gcc 3.4.5. how can i solve this problem? i dont have time to rebuild my system right now. can i slot the compiler or something?
Re: [gentoo-user] gcc question
On 4/1/06, Leigh Stewart [EMAIL PROTECTED] wrote: I just tried to install skype, it wont start, and in the logs it tells me it cant find libstdc++.so.6, which doesnt surprise me because it doesnt exist on my system. im using gcc 3.3.5 and im guessing that libstdc++.so.6 is libstdc++.so compiled with gcc 3.4.5. how can i solve this problem? i dont have time to rebuild my system right now. can i slot the compiler or something? The compiler is slotted, so you can just do emerge --oneshot =sys-devel/gcc-3.4.5-r1 and then use gcc-config to set your compiler back to the 3.3.5 version. -Richard -- gentoo-user@gentoo.org mailing list
