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Richard Fish schrieb: |
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> On 8/21/06, Stefan G. Weichinger <lists@×××××.at> wrote: |
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>> Richard Fish schrieb: |
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>> > or "emerge -e world" to complete. I would be tempted to just change |
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>> > the flags and hold off on recompiling everything until the next |
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>> > version of gcc comes out. |
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>> |
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>> ( ... "next version" in terms of minor- or major-version?) |
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> |
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> Gcc version numbers are in the form of X.Y.Z, so at a change in X or |
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> Y. The .Z changes should be just bug-fixes. The sad thing is that, |
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> due to changes in the C++ library, it is commonly to recompile all C++ |
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> applications when a new version of gcc comes out. |
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How do I know which they are? Certain USE-flags? |
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> And even if it |
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> isn't strictly /necessary/, an emerge -e world is considered the safe |
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> way to handle a gcc upgrade. |
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Ok. |
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>> I see the point in this. (AFAIK there is no way to break up "emerge -e |
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>> xy" into smaller pieces, something to do in several separated steps. |
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> |
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> Actually there is. You can find all packages not compiled with -Os |
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> and rebuild them with something like: |
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> |
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> cd /var/db/pkg |
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> for pkg in */* ; do |
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> grep -v -- "-Os" $pkg/CFLAGS >/dev/null |
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> test $? -eq 0 && emerge --oneshot =$pkg |
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> done |
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Threw me an error immediately with zsh, in bash it starts off fine ... |
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thanks! |
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This way I am able to run this step by step while I am working on other |
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machines, satisfying my need for constant changes ;-) |
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>> From your posting I conclude that it also won't do any harm to re-emerge |
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>> selected parts with new CFLAGS?) |
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> |
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> Correct. |
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Good to know. |
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>> Apart from this I have enough computer-related experience to know that I |
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>> simply should be happy with the |
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>> luks-encrypted/cpufreq'ed/hibernating/etc. gentoo-system I now have at |
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>> hand, instead of spending numerous hours to gain minimal speedups. |
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> |
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> Hrm, I also have the experience, but apparently not the good sense.... :-P |
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I also don't have that all the time, not at all. At least I get better |
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in preparing my steps with proper backups etc. so the loss of time |
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and/or data is drastically reduced compared to earlier times. So in a |
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way it gets even more interesting to try things. |
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Thanks, Stefan. |
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-- |
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