Re: [gentoo-user] coexisting GCC versions
Am Sonntag 28 Juni 2009 01:31:04 schrieb Volker Armin Hemmann: If you switch default compiler emerge -s world has to be done. That should be -e instead, I guess? But no, it doesn't need to be done. The only case we had were it was needed was the switch from 3.4.x to 4.x, because of C++ ABI changes. Never did it again since then. Bye... Dirk signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] coexisting GCC versions
On Sunday 28 June 2009 05:47:23 Volker Armin Hemmann wrote: On Sonntag 28 Juni 2009, Alex Schuster wrote: Volker Armin Hemmann writes: On Sonntag 28 Juni 2009, Alex Schuster wrote: Or keep 4.3 as default, I don't think you could run into problems. he will over time. If you switch default compiler emerge -s world has to be done. According to Alan McKinnon's (and my own experience), this is not necessary, unless there are ABI changes. But there were none between 4.1 and 4.3. http://www.mail-archive.com/gentoo-user@lists.gentoo.org/msg83724.html Wonko you don't have to compile between 4.2.0 and 4.2.1 - sure. But with 4.2 to 4.3 I only got a stable system after compiling everything with the same compiler. So whatever Alan says - I know how borked my box was with half of the libs compiled by one compiler and the rest by the other. That's interesting. I run ~amd64 here and update almost daily - so I got practically every gcc version that hit the tree since 3.3 at some stage. And I never had the problem you describe. It's likely that you have a set of libs that indeed *are* sensitive to different gcc versions, and I'm not using those libs (so I don't get the problems). I wonder if it would be worth the effort to investigate this further and isolate problem packages. It seems that only Gentoo (and derivs) have this problem - binary distros rebuild everything from scratch with each new releases (equivalent to emerge -e world) so they tend to never run into these issues. -- alan dot mckinnon at gmail dot com
Re: [gentoo-user] coexisting GCC versions
On Sonntag 28 Juni 2009, Alan McKinnon wrote: On Sunday 28 June 2009 05:47:23 Volker Armin Hemmann wrote: On Sonntag 28 Juni 2009, Alex Schuster wrote: Volker Armin Hemmann writes: On Sonntag 28 Juni 2009, Alex Schuster wrote: Or keep 4.3 as default, I don't think you could run into problems. he will over time. If you switch default compiler emerge -s world has to be done. According to Alan McKinnon's (and my own experience), this is not necessary, unless there are ABI changes. But there were none between 4.1 and 4.3. http://www.mail-archive.com/gentoo-user@lists.gentoo.org/msg83724.html Wonko you don't have to compile between 4.2.0 and 4.2.1 - sure. But with 4.2 to 4.3 I only got a stable system after compiling everything with the same compiler. So whatever Alan says - I know how borked my box was with half of the libs compiled by one compiler and the rest by the other. That's interesting. I run ~amd64 here and update almost daily - so I got practically every gcc version that hit the tree since 3.3 at some stage. And I never had the problem you describe. yeah, me too ;) It's likely that you have a set of libs that indeed *are* sensitive to different gcc versions, and I'm not using those libs (so I don't get the problems). probably, yes. I wonder if it would be worth the effort to investigate this further and isolate problem packages. I don't really think so. emerge -e system or emerge -e world aren't such hard to type - and you can do it in the background. Just open all apps you plan to use in the next couple of hours ;)
Re: [gentoo-user] coexisting GCC versions
Hello again, Roger Mason rma...@mun.ca writes: I need gcc 4.3 to compile a specific application. I am hoping that I can install gcc 4.3 alongside 4.1.1 without suffering some awful catastrophe. Can someone confirm that I'll be able to use gcc 4.3 for the specific application that needs it but then revert to 4.1.1 without having to re-compile all or most of my system? Thanks to all who replied. My home machine is compiling gcc 4.3 as I write this (it has been running all night). The reason I stick with gcc 4.1.1 is that: (a) I ran into problems during one of the gcc upgrades a couple of years back and ended up re-installing on a couple of boxes. Most of my machines are old and slow so gcc takes a while. (b) I have about a dozen heterogeneous machines that I use as a distcc compile farm and it it is a bit of a pain to upgrade all of them (bearing in mind that distcc can't be used to compile gcc). I suppose I should build gcc on the fastest box and install to the remainder as a binary. Cheers, Roger
Re: [gentoo-user] coexisting GCC versions
Hello, Roger Mason rma...@mun.ca writes: I need gcc 4.3 to compile a specific application. I am hoping that I can install gcc 4.3 alongside 4.1.1 without suffering some awful catastrophe. This is the output of emerge on the machine in question: The compilation finally completed. It only took about 14 hours. I followed the info presented at the end of the installation and did, as root: gcc-config i686-pc-linux-gnu-4.3.2 and gcc-config -l now says: garnet rmason # gcc-config -l [1] i686-pc-linux-gnu-4.1.1 [2] i686-pc-linux-gnu-4.3.2 I also ran source /etc/profile, as recommended and gcc -v now reports gcc-4.3.2. However, as an ordinary user gcc -v reports: garnet ~ $ gcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-4.1.1-r3/work/gcc-4.1.1/configure (blah, blah) That is after running source /etc/profile _and_ (when that did not change the reported gcc version) logging out and back in. How do I set gcc to version 4.3.2 for an ordinary user? Thanks, Roger
[gentoo-user] coexisting GCC versions
Hello, I need gcc 4.3 to compile a specific application. I am hoping that I can install gcc 4.3 alongside 4.1.1 without suffering some awful catastrophe. This is the output of emerge on the machine in question: emerge -pv gcc These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild U ] sys-devel/gcc-config-1.4.0-r4 [1.3.14] 0 kB [?=0] [ebuild N] app-arch/lzma-utils-4.32.7 USE=-nocxx 469 kB [0] [ebuild U ] dev-libs/mpfr-2.4.1_p1 [2.2.0_p10] 883 kB [?=0] [ebuild U ] sys-libs/glibc-2.8_p20080602-r1 [2.4-r4] USE=gd%* -debug% -glibc-omitfp (-hardened) (-multilib) -nls -profile (-selinux) -vanilla% (-build%) (-glibc-compat20%) (-nptl%*) (-nptlonly%*) 16,415 kB [?=0] [ebuild NS ] sys-devel/gcc-4.3.2-r3 [4.1.1-r3] USE=doc fortran gcj gtk mudflap openmp (-altivec) -bootstrap -build (-fixed-point) (-hardened) -ip28 -ip32r10k -libffi (-multilib) -multislot (-n32) (-n64) -nls -nocxx -nopie -objc -objc++ -objc-gc -test -vanilla 58,990 kB [0] Can someone confirm that I'll be able to use gcc 4.3 for the specific application that needs it but then revert to 4.1.1 without having to re-compile all or most of my system? Thanks, Roger
Re: [gentoo-user] coexisting GCC versions
On Sonntag 28 Juni 2009, Roger Mason wrote: Hello, I need gcc 4.3 to compile a specific application. I am hoping that I can install gcc 4.3 alongside 4.1.1 without suffering some awful catastrophe. This is the output of emerge on the machine in question: emerge -pv gcc These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild U ] sys-devel/gcc-config-1.4.0-r4 [1.3.14] 0 kB [?=0] [ebuild N] app-arch/lzma-utils-4.32.7 USE=-nocxx 469 kB [0] [ebuild U ] dev-libs/mpfr-2.4.1_p1 [2.2.0_p10] 883 kB [?=0] [ebuild U ] sys-libs/glibc-2.8_p20080602-r1 [2.4-r4] USE=gd%* -debug% -glibc-omitfp (-hardened) (-multilib) -nls -profile (-selinux) -vanilla% (-build%) (-glibc-compat20%) (-nptl%*) (-nptlonly%*) 16,415 kB [?=0] [ebuild NS ] sys-devel/gcc-4.3.2-r3 [4.1.1-r3] USE=doc fortran gcj gtk mudflap openmp (-altivec) -bootstrap -build (-fixed-point) (-hardened) -ip28 -ip32r10k -libffi (-multilib) -multislot (-n32) (-n64) -nls -nocxx -nopie -objc -objc++ -objc-gc -test -vanilla 58,990 kB [0] Can someone confirm that I'll be able to use gcc 4.3 for the specific application that needs it but then revert to 4.1.1 without having to re-compile all or most of my system? yes
Re: [gentoo-user] coexisting GCC versions
Roger Mason writes: I need gcc 4.3 to compile a specific application. I am hoping that I can install gcc 4.3 alongside 4.1.1 without suffering some awful catastrophe. This is the output of emerge on the machine in question: [...] Can someone confirm that I'll be able to use gcc 4.3 for the specific application that needs it but then revert to 4.1.1 without having to re-compile all or most of my system? I'm pretty sure you can. Emerge gcc 4.3, activate it with gcc-config, compile your application, and use gcc-config again to revert back to 4.1 if you like. Or keep 4.3 as default, I don't think you could run into problems. Wonko
Re: [gentoo-user] coexisting GCC versions
On Sonntag 28 Juni 2009, Alex Schuster wrote: Roger Mason writes: I need gcc 4.3 to compile a specific application. I am hoping that I can install gcc 4.3 alongside 4.1.1 without suffering some awful catastrophe. This is the output of emerge on the machine in question: [...] Can someone confirm that I'll be able to use gcc 4.3 for the specific application that needs it but then revert to 4.1.1 without having to re-compile all or most of my system? I'm pretty sure you can. Emerge gcc 4.3, activate it with gcc-config, compile your application, and use gcc-config again to revert back to 4.1 if you like. Or keep 4.3 as default, I don't think you could run into problems. Wonko he will over time. If you switch default compiler emerge -s world has to be done. But seriously, why staying with 4.1? it's old... and 4.3 was a nice release...
Re: [gentoo-user] coexisting GCC versions
In linux.gentoo.user, you wrote: On Sonntag 28 Juni 2009, Alex Schuster wrote: Roger Mason writes: I need gcc 4.3 to compile a specific application. I am hoping that I can install gcc 4.3 alongside 4.1.1 without suffering some awful catastrophe. This is the output of emerge on the machine in question: [...] Can someone confirm that I'll be able to use gcc 4.3 for the specific application that needs it but then revert to 4.1.1 without having to re-compile all or most of my system? I'm pretty sure you can. Emerge gcc 4.3, activate it with gcc-config, compile your application, and use gcc-config again to revert back to 4.1 if you like. Or keep 4.3 as default, I don't think you could run into problems. Wonko he will over time. If you switch default compiler emerge -s world has to be done. But seriously, why staying with 4.1? it's old... and 4.3 was a nice release... Well, for me, media-plugins/mytharchive won't compile with gcc 4.3. Hopefully things will change with the next mythtv release. -- Regards, Gregory.
Re: [gentoo-user] coexisting GCC versions
Gregory Shearman zek...@gmail.com said: In linux.gentoo.user, you wrote: he will over time. If you switch default compiler emerge -s world has to be done. But seriously, why staying with 4.1? it's old... and 4.3 was a nice release... Well, for me, media-plugins/mytharchive won't compile with gcc 4.3. Hopefully things will change with the next mythtv release. Please file a bug so we actually know about the problem and can fix it :) https://bugs.gentoo.org/ -- Mark Loeser email - halcy0n AT gentoo DOT org email - mark AT halcy0n DOT com web - http://www.halcy0n.com pgp04ctridxH3.pgp Description: PGP signature
Re: [gentoo-user] coexisting GCC versions
Volker Armin Hemmann wrote: On Sonntag 28 Juni 2009, Alex Schuster wrote: Roger Mason writes: I need gcc 4.3 to compile a specific application. I am hoping that I can install gcc 4.3 alongside 4.1.1 without suffering some awful catastrophe. This is the output of emerge on the machine in question: [...] Can someone confirm that I'll be able to use gcc 4.3 for the specific application that needs it but then revert to 4.1.1 without having to re-compile all or most of my system? I'm pretty sure you can. Emerge gcc 4.3, activate it with gcc-config, compile your application, and use gcc-config again to revert back to 4.1 if you like. Or keep 4.3 as default, I don't think you could run into problems. Wonko he will over time. If you switch default compiler emerge -s world has to be done. But seriously, why staying with 4.1? it's old... and 4.3 was a nice release... Except for me and a couple others. I had programs that crashed, couldn't get a kernel to work and other issues. I had to go back to 4.1on this rig. After going back, everything works fine. Dale :-) :-)
Re: [gentoo-user] coexisting GCC versions
On Sonntag 28 Juni 2009, Dale wrote: Volker Armin Hemmann wrote: On Sonntag 28 Juni 2009, Alex Schuster wrote: Roger Mason writes: I need gcc 4.3 to compile a specific application. I am hoping that I can install gcc 4.3 alongside 4.1.1 without suffering some awful catastrophe. This is the output of emerge on the machine in question: [...] Can someone confirm that I'll be able to use gcc 4.3 for the specific application that needs it but then revert to 4.1.1 without having to re-compile all or most of my system? I'm pretty sure you can. Emerge gcc 4.3, activate it with gcc-config, compile your application, and use gcc-config again to revert back to 4.1 if you like. Or keep 4.3 as default, I don't think you could run into problems. Wonko he will over time. If you switch default compiler emerge -s world has to be done. But seriously, why staying with 4.1? it's old... and 4.3 was a nice release... Except for me and a couple others. I had programs that crashed, couldn't get a kernel to work and other issues. I had to go back to 4.1on this rig. After going back, everything works fine. Dale :-) :-) *shrug* especially the kernel should never have had problems with 4.3 - except you were using strange patches... or very old kernels... I am at gcc 4.4 right now. Good choice actually...
Re: [gentoo-user] coexisting GCC versions
Volker Armin Hemmann writes: On Sonntag 28 Juni 2009, Alex Schuster wrote: Or keep 4.3 as default, I don't think you could run into problems. he will over time. If you switch default compiler emerge -s world has to be done. According to Alan McKinnon's (and my own experience), this is not necessary, unless there are ABI changes. But there were none between 4.1 and 4.3. http://www.mail-archive.com/gentoo-user@lists.gentoo.org/msg83724.html Wonko
Re: [gentoo-user] coexisting GCC versions
On Sonntag 28 Juni 2009, Alex Schuster wrote: Volker Armin Hemmann writes: On Sonntag 28 Juni 2009, Alex Schuster wrote: Or keep 4.3 as default, I don't think you could run into problems. he will over time. If you switch default compiler emerge -s world has to be done. According to Alan McKinnon's (and my own experience), this is not necessary, unless there are ABI changes. But there were none between 4.1 and 4.3. http://www.mail-archive.com/gentoo-user@lists.gentoo.org/msg83724.html Wonko you don't have to compile between 4.2.0 and 4.2.1 - sure. But with 4.2 to 4.3 I only got a stable system after compiling everything with the same compiler. So whatever Alan says - I know how borked my box was with half of the libs compiled by one compiler and the rest by the other.
Re: [gentoo-user] coexisting GCC versions
Volker Armin Hemmann wrote: On Sonntag 28 Juni 2009, Dale wrote: Except for me and a couple others. I had programs that crashed, couldn't get a kernel to work and other issues. I had to go back to 4.1on this rig. After going back, everything works fine. Dale :-) :-) *shrug* especially the kernel should never have had problems with 4.3 - except you were using strange patches... or very old kernels... I am at gcc 4.4 right now. Good choice actually... I was using the latest gentoo-sources and it either would fail to compile or the kernel it compiled would not boot. I also had problems with programs crashing and other odd things. After switching back to 4.1 and doing a emerge -e world, everything was fine. I plan to skip that gcc. Dale :-) :-)
Re: [gentoo-user] coexisting GCC versions
In linux.gentoo.user, you wrote: --rwEMma7ioTxnRzrJ Content-Type: text/plain; charset=utf8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Gregory Shearman zek...@gmail.com said: In linux.gentoo.user, you wrote: he will over time. If you switch default compiler emerge -s world has t= o be=20 done. But seriously, why staying with 4.1? it's old... and 4.3 was a nice rel= ease... =20 Well, for me, media-plugins/mytharchive won't compile with gcc 4.3. Hopefully things will change with the next mythtv release. Please file a bug so we actually know about the problem and can fix it :) https://bugs.gentoo.org/ Have a look at this: http://bugs.gentoo.org/240379 It describes how mytharchive-0.21_p17948 requires an earlier version of mjpegtools (1.80) than the portage 1.90 version. mjpegtools-1.80 won't compile on gcc-4.3. Perhaps I didn't make myself completely clear when I said that mytharchive won't compile using gcc 4.3. It's mjpegtools 1.80 (required by mytharchive) that won't compile using gcc 4.3. -- Regards, Gregory.
