[gentoo-user] downgrading gcc, stage 2

2012-02-22 Thread meino . cramer
Hi, while trying to get a clean system after downgrading gcc to gcc-4.4.5. I encountered a field of black magick...more black than magic at all: To find broken libs I did these two commands: sudo find /usr/lib/. /lib/. /usr/bin/. -type f -name 'lib*[^a]' -exec ldd {} \; !

Re: [gentoo-user] downgrading gcc, stage 2

2012-02-22 Thread Alan McKinnon
On Wed, 22 Feb 2012 20:47:24 +0100 meino.cra...@gmx.de wrote: Hi, while trying to get a clean system after downgrading gcc to gcc-4.4.5. I encountered a field of black magick...more black than magic at all: To find broken libs I did these two commands: sudo find /usr/lib/. /lib/.

Re: [gentoo-user] downgrading gcc, stage 2

2012-02-22 Thread Mark Knecht
On Wed, Feb 22, 2012 at 11:58 AM, Alan McKinnon alan.mckin...@gmail.com wrote: On Wed, 22 Feb 2012 20:47:24 +0100 meino.cra...@gmx.de wrote: Hi, while trying to get a clean system after downgrading gcc to gcc-4.4.5. I encountered a field of black magick...more black than magic at all: To

[gentoo-user] Downgrading gcc

2012-02-19 Thread meino . cramer
Hi, I want to downgrade gcc from 4.5.3-r1 to 4.4.5. The Gentoo gcc UPgrade guide tells me, that ABI are only upward compatible which implies problems when downgrading and not upgrading. Nonetheless a downgrade is needed here and I want to go to gcc-4.4.5. How can I acchieve this in a clean

Re: [gentoo-user] Downgrading gcc

2012-02-19 Thread Pandu Poluan
Just re-emerge the older version e.g. emerge =...gcc-4.4.5 (... is the category). Then use eselect gcc or gcc-config to select the active gcc version. CMIIW Rgds, On Feb 20, 2012 11:24 AM, meino.cra...@gmx.de wrote: Hi, I want to downgrade gcc from 4.5.3-r1 to 4.4.5. The Gentoo gcc

Re: [gentoo-user] downgrading gcc

2009-04-20 Thread Alan McKinnon
On Monday 20 April 2009 02:05:35 Dale wrote: Alan McKinnon wrote: On Sunday 19 April 2009 22:18:24 Mark Knecht wrote: 2) Should I expect any problems with the system if I do emerge -e system emerge -e system [OPTIONAL] emerge -e world Why would you want to do this? Do you

Re: [gentoo-user] downgrading gcc

2009-04-20 Thread Dale
Alan McKinnon wrote: On Monday 20 April 2009 02:05:35 Dale wrote: Alan McKinnon wrote: On Sunday 19 April 2009 22:18:24 Mark Knecht wrote: 2) Should I expect any problems with the system if I do emerge -e system emerge -e system [OPTIONAL] emerge -e world Why

Re: [gentoo-user] downgrading gcc

2009-04-20 Thread Alan McKinnon
On Monday 20 April 2009 09:30:56 Dale wrote: That said, it has worked well for me. Everything on my rig is working again. If he has to do this downgrade of gcc, then a emerge -e world and everything works again, I'm going to really wonder what the deal is with gcc. Just me running into

Re: [gentoo-user] downgrading gcc

2009-04-20 Thread Dale
Alan McKinnon wrote: It's more likely a compatibility issue between very specific modules or bits of code that affect lots of systems. Take for example this elog from the nvidia drivers: === This ebuild installs a kernel module and X driver. Both must match explicitly in their version.

Re: [gentoo-user] downgrading gcc

2009-04-20 Thread Mark Knecht
On Mon, Apr 20, 2009 at 12:48 AM, Alan McKinnon alan.mckin...@gmail.com wrote: On Monday 20 April 2009 09:30:56 Dale wrote: That said, it has worked well for me.  Everything on my rig is working again.  If he has to do this downgrade of gcc, then a emerge -e world and everything works again,

[gentoo-user] downgrading gcc

2009-04-19 Thread Mark Knecht
Hi, Is downgrading gcc allowed within the same major version? If I wanted to downgrade my gcc from 4.3.2 to 4.1.2 then: 1) Do I simply choose 4.1.2 using gcc-config? 2) Should I expect any problems with the system if I do emerge -e system emerge -e system [OPTIONAL] emerge -e world

Re: [gentoo-user] downgrading gcc

2009-04-19 Thread Dale
Mark Knecht wrote: Hi, Is downgrading gcc allowed within the same major version? If I wanted to downgrade my gcc from 4.3.2 to 4.1.2 then: 1) Do I simply choose 4.1.2 using gcc-config? 2) Should I expect any problems with the system if I do emerge -e system emerge -e system

Re: [gentoo-user] downgrading gcc

2009-04-19 Thread Alan McKinnon
On Sunday 19 April 2009 22:18:24 Mark Knecht wrote: Hi, Is downgrading gcc allowed within the same major version? If I wanted to downgrade my gcc from 4.3.2 to 4.1.2 then: It's not a problem. If it were, there would be no point in allowing multiple versions as it would not be possible to

Re: [gentoo-user] downgrading gcc

2009-04-19 Thread Dale
Alan McKinnon wrote: On Sunday 19 April 2009 22:18:24 Mark Knecht wrote: 2) Should I expect any problems with the system if I do emerge -e system emerge -e system [OPTIONAL] emerge -e world Why would you want to do this? Do you suspect a toolchain API/ABI breakage between