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One thing that I think wasn't mentioned yet, while -fPIC is needed for |
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libraries, it must be disabled for binaries (don't know if that's true |
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for prelink), as portage says, it might break things and your binaries |
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are most likely becoming slower when you compile them with -fPIC. |
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|
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2006/9/27, Daniel Iliev <danny@××××××××.com>: |
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> Hello, everyone! |
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> |
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> It's my first mail to this list. I hope the community here is as |
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> friendly as the one at the general "gentoo-user" list ;-) |
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> Please, forgive me if open some threads about already discussed issues |
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> until I catch up with rhythm of the list. |
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> |
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> So let me start a with 2 newbie questions caused by my first impressions |
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> from the x86_64 world: |
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> |
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> 1) I use CFLAGS="-march=athlon64 -mfpmath=sse -msse -msse2 -msse3 |
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> -m3dnow -mmmx -O3 -fomit-frame-pointer -pipe -fpic". Portage complains |
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> with *red letters* about the fpic flag. Every time I emerge something it |
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> says that "fpic breaks things", but I haven't met a single breakage so |
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> far. Is that a bug? Actually there was an ebuild which could not be |
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> compiled if mysql was compiled w/o "fpic". I'm not 100% sure but AFAIR |
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> it was dev-perl/DBD-mysql. |
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> |
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> 2) I see too many flags that are disabled by the profile - the kind with |
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> the parenthesis around them, like "(-3dnow)". Why? As I mentioned above |
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> I enable some of these through my CFLAGS - e.g. (-mmx), (-mmxext), |
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> (-sse) and (-sse2) and everything works perfect. |
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> |
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> |
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> |
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> -- |
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> gentoo-amd64@g.o mailing list |
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> |
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> |
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-- |
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gentoo-amd64@g.o mailing list |
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