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Duncan posted on Wed, 11 Oct 2017 03:31:55 +0000 as excerpted: |
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> Andreas K. Huettel posted on Tue, 10 Oct 2017 21:02:32 +0200 as |
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> excerpted: |
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> |
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>> Switching the profile changes the settings for building gcc (it |
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>> switches a use-flag from forced-off to forced-on). A gcc-6 built with |
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>> the 17.0 profiles will produce PIE executables by default, a gcc-6 |
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>> built with the 13.0 profiles will not. |
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>> |
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>> I've added this paragraph: |
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>> # Switching the profile modifies the settings of GCC 6 to generate |
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>> # PIE executables by default; thus, you need to do the rebuilds |
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>> # even if you already used GCC 6 beforehand. |
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> |
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> Thanks. Much clearer now. =:^) |
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> |
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> (And I'll have some rebuilding to do.) |
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Actually it seems not. I had forgotten this from my |
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/etc/portage/profile/package.use.mask (along with the appropriate system- |
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wide USE flag): |
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|
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# 2017.0513 Now that I have gcc-pie enabled, don't want |
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# the new profile package.use.mask. See the |
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# "[PATCH] profiles: update pie use-flag masks for sys-devel/gcc" |
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# thread, OP on Thursday, 11 May 2017 |
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# by Mathias Maier <tamiko@g.o on gentoo-devel |
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sys-devel/gcc -pie |
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|
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I had turned it on already by the time of the mask, and unmasked to avoid |
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turning it off and rebuilding again, once it was on system-wide and the |
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mask was trying to turn it off again, which would have forced another |
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system-wide rebuild then, and yet /another/ one now. |
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Of course that's a big part of why I as a responsible gentoo-based-system |
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sysadmin follow this list, to see such changes coming down the pike and |
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take appropriate measures before they hit me and the systems I administer |
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(only my own, but that's no reason not to take the job seriously) |
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head-on. =:^) |
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|
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So AFAICS my profile upgrade should be just a matter of flipping the |
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symlink. I guess I'll find out in the next few days. =:^) |
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|
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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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