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configure.ac: make msan & ubsan flags additive

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These were setting = SAN_FLAGS, we want to add to the variable. Note
MSAN can't be used with any other sanitizer (except UBSan) but the
compiler will complain about that if you use it wrong so we don't need
to enforce it here.

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
This commit is contained in:
Quentin Young 2020-01-03 15:03:37 -05:00
parent f8034506de
commit 982187afb5
1 changed files with 2 additions and 2 deletions
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4
configure.ac
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@ -331,14 +331,14 @@ if test "$enable_memory_sanitizer" = "yes"; then
AC_C_FLAG([-fsanitize=memory -fPIE -pie], [
AC_MSG_ERROR([$CC does not support Memory Sanitizer.])
], [
SAN_FLAGS="-fsanitize=memory -fPIE -pie"
SAN_FLAGS="$SAN_FLAGS -fsanitize=memory -fPIE -pie"
])
fi
if test "$enable_undefined_sanitizer" = "yes"; then
AC_C_FLAG([-fsanitize=undefined], [
AC_MSG_ERROR([$CC does not support UndefinedBehaviorSanitizer.])
], [
SAN_FLAGS="-fsanitize=undefined"
SAN_FLAGS="$SAN_FLAGS -fsanitize=undefined"
])
fi
AC_SUBST([SAN_FLAGS])