From: Adam Carter <adamcarter3@gmail.com>
To: "gentoo-user@lists.gentoo.org" <gentoo-user@lists.gentoo.org>
Subject: Re: [gentoo-user] How reliable is emerge --info output?
Date: Tue, 15 Jan 2013 08:53:30 +1100 [thread overview]
Message-ID: <CAC=wYCHOnLJA9k8P4QWVL5JDbHxvmoz-3-rWS6Bim54FH02B2w@mail.gmail.com> (raw)
In-Reply-To: <CAG2nJkO70K+y3jAUkDHzwQwqG5rOhoVVp9qCpBi1fNdhwgFMzg@mail.gmail.com>
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> # Set optimization level
> if [[ ${ARCH} == hppa ]]; then
> mozconfig_annotate "more than -O0 causes a segfault on
> hppa" --enable-optimize=-O0
> elif [[ ${ARCH} == x86 ]]; then
> mozconfig_annotate "less then -O2 causes a segfault on
> x86" --enable-optimize=-O2
> elif use custom-optimization || [[ ${ARCH} =~ (alpha|ia64) ]]; then
> # Set optimization level based on CFLAGS
> if is-flag -O0; then
> mozconfig_annotate "from CFLAGS"
> --enable-optimize=-O0
> elif [[ ${ARCH} == ppc ]] && has_version
> '>=sys-libs/glibc-2.8'; then
> mozconfig_annotate "more than -O1 segfaults on
> ppc with glibc-2.8" --enable-optimize=-O1
> elif is-flag -O3; then
> mozconfig_annotate "from CFLAGS"
> --enable-optimize=-O3
> elif is-flag -O1; then
> mozconfig_annotate "from CFLAGS"
> --enable-optimize=-O1
> elif is-flag -Os; then
> mozconfig_annotate "from CFLAGS"
> --enable-optimize=-Os
> else
> mozconfig_annotate "Gentoo's default
> optimization" --enable-optimize=-O2
> fi
> else
> # Enable Mozilla's default
> mozconfig_annotate "mozilla default" --enable-optimize
> fi
> """
>
And just after that, it appears that if custom-cflags is not set, then it
strips all the -O* flags (if i'm reading the code correctly), which would
explain why there's no -O set for the compiler.....
# Strip optimization so it does not end up in compile string
filter-flags '-O*'
# Strip over-aggressive CFLAGS
use custom-cflags || strip-flags
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prev parent reply other threads:[~2013-01-14 21:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-14 11:18 [gentoo-user] How reliable is emerge --info output? Adam Carter
2013-01-14 11:45 ` Bruce Hill
2013-01-14 12:05 ` Mark David Dumlao
2013-01-14 21:53 ` Adam Carter [this message]
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