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authorSergei Trofimovich <slyfox@gentoo.org>2019-02-15 07:49:26 +0000
committerSergei Trofimovich <slyfox@gentoo.org>2019-02-15 07:53:19 +0000
commitf437c7c0233294f197514f3b6ab8a4a24736719b (patch)
tree209d85af6736c05030807acb0f0a29bdb9e1d14e /eclass
parentmedia-libs/giflib: fix double prefix (diff)
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toolchain.eclass: never pass --enable-libvtv to ./configure
gcc treats --enable-libvtv as an override on top of autodetection. It it never what we want. Happens to break at least powerpc64 cross-compilers: https://bugs.gentoo.org/661252 Reported-by: Ilia Mirkin Closes: https://bugs.gentoo.org/661252 Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Diffstat (limited to 'eclass')
-rw-r--r--eclass/toolchain.eclass7
1 files changed, 5 insertions, 2 deletions
diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index 56921228daa..daa62e3a67c 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -1278,7 +1278,8 @@ toolchain_src_configure() {
if in_iuse vtv ; then
confgcc+=(
$(use_enable vtv vtable-verify)
- $(use_enable vtv libvtv)
+ # See Note [implicitly enabled flags]
+ $(usex vtv '' --disable-libvtv)
)
fi
@@ -2514,7 +2515,9 @@ toolchain_death_notice() {
#
# GCC does not follow this pattern and instead overrides autodetection
# of the feature and enables it unconditionally.
-# See https://gcc.gnu.org/PR85663
+# See bugs:
+# https://gcc.gnu.org/PR85663 (libsanitizer on mips)
+# https://bugs.gentoo.org/661252 (libvtv on powerpc64)
#
# Thus safer way to enable/disable the feature is to rely on implicit
# enabled-by-default state: