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