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Silence unneeded clang warns that triggered in prob distr tests.

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See https://trac.torproject.org/projects/tor/ticket/29528#comment:3
and https://bugs.llvm.org/show_bug.cgi?id=19535
This commit is contained in:
George Kadianakis 2019-02-25 15:29:41 +02:00 committed by Nick Mathewson
parent a71999462b
commit 8b64ff7a3f
1 changed files with 5 additions and 0 deletions
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5
configure.ac
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@ -1196,6 +1196,11 @@ if test "$fragile_hardening" = "yes"; then
AC_MSG_ERROR([The compiler supports -fsanitize=undefined, but for some reason I was not able to link when using it. Are you missing run-time support? With GCC you need libasan.*, and with Clang you need libclang_rt.ubsan*])
fi
TOR_TRY_COMPILE_WITH_CFLAGS([-fno-sanitize=float-divide-by-zero], also_link, CFLAGS_UBSAN="-fno-sanitize=float-divide-by-zero", true)
if test "$tor_cv_cflags__fno_sanitize_float_divide_by_zero" = "yes" && test "$tor_can_link__fno_sanitize_float_divide_by_zero" != "yes"; then
AC_MSG_ERROR([The compiler supports -fno-sanitize=float-divide-by-zero, but for some reason I was not able to link when using it. Are you missing run-time support? With GCC you need libasan.*, and with Clang you need libclang_rt.ubsan*])
fi
TOR_CHECK_CFLAGS([-fno-omit-frame-pointer])
fi