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Add --enable-asan & --enable-ubsan. By default disabled. #352

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Add --enable-asan & --enable-ubsan. By default disabled. #352

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14 changes: 14 additions & 0 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -185,6 +185,10 @@ if test x$enable_debug = xyes; then
user_CXXFLAGS="$CXXFLAGS" # ac_save_CXXFLAGS is not set yet
fi

# sanitizer
AC_ARG_ENABLE(asan, [ --enable-asan address sanitizer])
AC_ARG_ENABLE(ubsan, [ --enable-ubsan undefined behaviour sanitizer])

# do we want the bzflag client?
AC_ARG_ENABLE(client, [ --disable-client server-only build])

Expand Down Expand Up @@ -767,6 +771,16 @@ else
AC_DEFINE(NDEBUG, 1, [Debugging disabled])
fi

if test "x$enable_asan" = xyes; then
CONF_CFLAGS="$CONF_CFLAGS -fsanitize=address"
CONF_CXXFLAGS="$CONF_CXXFLAGS -fsanitize=address"
fi

if test "x$enable_ubsan" = xyes; then
CONF_CFLAGS="$CONF_CFLAGS -fsanitize=undefined -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow"
CONF_CXXFLAGS="$CONF_CXXFLAGS -fsanitize=undefined -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow"
fi

dnl check for -search_paths_first linker flag when making dynamic libraries
search_paths_first_flag="-Wl,-search_paths_first -mdynamic-no-pic"
AC_MSG_CHECKING([if the compiler understands $search_paths_first_flag])
Expand Down
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