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Francesco R posted on Wed, 09 Feb 2011 13:32:36 +0100 as excerpted: |
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> 2011/2/9 Ryan Hill <dirtyepic@g.o> |
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> |
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>> On Tue, 08 Feb 2011 09:52:55 +0100 |
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>> "Paweł Hajdan, Jr." <phajdan.jr@g.o> wrote: |
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>> |
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>> > It seems that with glibc-2.13 there are some serious compatibility |
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>> > issues. [H]ow about creating news item with detailed |
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>> > instructions how to ensure smooth glibc-2.13 update or recover a |
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>> > hosed system? |
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>> |
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>> We've blocked prelink in the ebuild so if a user is able to sync |
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>> they're either not going to be affected or already have been. |
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>> |
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>> Also I've the strong suspect that these changes: |
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> |
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> * New optimized string functions for x86-64: strnlen (SSE2), |
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> strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2) |
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> Implemented by Ulrich Drepper. |
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> |
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> Interact badly with strong optimizations like [snip] |
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FYI... If you aren't deliberately modding the glibc ebuild, disabling its |
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strippers, it strips most CFLAGS specifically for glibc only, due to |
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problems they've had in the past with over-optimization and because if it |
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breaks, the whole system does, so they want to be somewhat conservative. |
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Basically, with the glibc ebuild you're stripped down to the -march/mtune |
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setting, -O2 and -pipe. Pretty much everything else is stripped, as I |
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said, unless you're running a customized ebuild with the stripping code |
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disabled. |
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As you didn't mention you were, I'll assume you aren't. You should of |
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course be able to check your logs and see what CFLAGS were actually used |
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in the compile, if there's any doubt. |
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Of course, if you are modding the ebuild, disabling the stripping, then |
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yes, for sure, don't file bugs on it! But you didn't /say/ you modified |
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it, and people who disable that stripping aren't the sorts of folks the |
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news items are written for anyway as they're /entirely/ on their own, so |
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it's not like that'd be a concern, here. |
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-- |
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Duncan - List replies preferred. No HTML msgs. |
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"Every nonfree program has a lord, a master -- |
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and if you use the program, he is your master." Richard Stallman |
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