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bpo-36618: Don't add -fmax-type-align flag to old clang (GH-12811)

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Victor Stinner 2019-04-13 00:51:07 +02:00 • committed by GitHub
parent 1e8295402b
commit a304b136ad
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3 changed files with 16 additions and 6 deletions
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9
configure vendored
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@ -6889,9 +6889,14 @@ then
# instead: slower but don't trigger a SIGSEGV if the memory is not aligned
# on 16 bytes.
#
# Sadly, the flag must be expected to CFLAGS and not just CFLAGS_NODIST,
# Sadly, the flag must be added to CFLAGS and not just CFLAGS_NODIST,
# since third party C extensions can have the same issue.
CFLAGS="$CFLAGS -fmax-type-align=8"
#
# Check if -fmax-type-align flag is supported (it's not supported by old
# clang versions):
if "$CC" -v --help 2>/dev/null |grep -- -fmax-type-align > /dev/null; then
CFLAGS="$CFLAGS -fmax-type-align=8"
fi
fi