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Disable aliasing when building with Clang

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When building with new versions of Clang we encounter some issues. Work
around them by adding -fno-strict-aliasing when we detect Clang.

https://code.google.com/p/webm/issues/detail?id=603

Change-Id: I8e945a18a7215bcc627e7a1ee110078413259cc7
This commit is contained in:
Johann 2013-10-28 15:44:41 -07:00
parent 080150d96f
commit 8b47e1cfe1
1 changed files with 6 additions and 1 deletions
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7
configure vendored
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@ -608,7 +608,12 @@ process_toolchain() {
check_add_cflags -Wuninitialized
check_add_cflags -Wunused-variable
case ${CC} in
*clang*) ;;
*clang*)
# libvpx and/or clang have issues with aliasing:
# https://code.google.com/p/webm/issues/detail?id=603
# work around them until they are fixed
check_add_cflags -fno-strict-aliasing
;;
*) check_add_cflags -Wunused-but-set-variable ;;
esac
enabled extra_warnings || check_add_cflags -Wno-unused-function