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commit: 7ea2cf10a9f26e915cada4262066dacd87513a62 |
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Author: Sam James <sam <AT> gentoo <DOT> org> |
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AuthorDate: Wed Jul 28 02:58:13 2021 +0000 |
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Commit: Sam James <sam <AT> gentoo <DOT> org> |
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CommitDate: Wed Jul 28 02:59:31 2021 +0000 |
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URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7ea2cf10 |
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net-misc/dhcp: avoid undefined/broken runtime behaviour with -O3 |
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|
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-fstrict-aliasing (enabled by -O3) breaks code within dhcp |
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which violates the no-strict-aliasing rule. So, let's tag on |
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an option to avoid assuming that rule / avoid the optimisation |
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which is unsafe here. |
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|
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Bug: https://bugs.gentoo.org/787935 |
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Signed-off-by: Sam James <sam <AT> gentoo.org> |
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|
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net-misc/dhcp/{dhcp-4.4.2_p1.ebuild => dhcp-4.4.2_p1-r1.ebuild} | 4 ++++ |
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1 file changed, 4 insertions(+) |
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|
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diff --git a/net-misc/dhcp/dhcp-4.4.2_p1.ebuild b/net-misc/dhcp/dhcp-4.4.2_p1-r1.ebuild |
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similarity index 98% |
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rename from net-misc/dhcp/dhcp-4.4.2_p1.ebuild |
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rename to net-misc/dhcp/dhcp-4.4.2_p1-r1.ebuild |
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index 4b86781a388..57fd8dd47f4 100644 |
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--- a/net-misc/dhcp/dhcp-4.4.2_p1.ebuild |
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+++ b/net-misc/dhcp/dhcp-4.4.2_p1-r1.ebuild |
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@@ -159,6 +159,10 @@ src_configure() { |
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#define _PATH_DHCRELAY6_PID "${r}/dhcrelay6.pid" |
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EOF |
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|
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+ # Breaks with -O3 because of reliance on undefined behaviour |
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+ # bug #787935 |
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+ append-flags -fno-strict-aliasing |
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+ |
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# https://bugs.gentoo.org/720806 |
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if use ppc || use arm || use hppa; then |
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append-libs -latomic |
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