commit 78a8827fd4d4c814e63a8670cf88453f1586f4c5 Author: George Kadianakis <desnacked@riseup.net> Date: Mon Feb 25 15:29:41 2019 +0200 Silence unneeded clang warns that triggered in prob distr tests. See https://trac.torproject.org/projects/tor/ticket/29528#comment:3 and https://bugs.llvm.org/show_bug.cgi?id=19535 --- configure.ac | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/configure.ac b/configure.ac index 91a049844..0f7eb61f2 100644 --- a/configure.ac +++ b/configure.ac @@ -1198,6 +1198,11 @@ 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