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build: Support building using clang-usan and disable-optimization

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Clang Undefined Behaviour Sanitizer seems to make non-constant constant
expressions, making the compilation fail when they are used within
inline assembly if no optimization is requested.

Add -O1 to the cflags to hide the misbehaviour.

Bug-Id: 683
This commit is contained in:
Katerina Barone-Adesi
2014-05-16 18:07:34 +02:00
committed by Luca Barbato
parent 7c377f0e74
commit 4d25c2bc76
1 changed files with 1 additions and 1 deletions
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2
configure vendored
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@@ -2443,7 +2443,7 @@ case "$toolchain" in
;;
clang-usan)
cc_default="clang"
add_cflags -fsanitize=undefined
add_cflags -fsanitize=undefined -O1
add_ldflags -fsanitize=undefined
;;
gcc-asan)