Hush Full Node software. We were censored from Github, this is where all development happens now.
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40 lines
944 B
40 lines
944 B
# Some versions of gcc/libstdc++ require linking with -latomic if
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# using the C++ atomic library.
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#
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# Sourced from http://bugs.debian.org/797228
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m4_define([_CHECK_ATOMIC_testbody], [[
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#include <atomic>
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#include <cstdint>
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int main() {
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std::atomic<int64_t> a{};
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int64_t v = 5;
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int64_t r = a.fetch_add(v);
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return static_cast<int>(r);
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}
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]])
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AC_DEFUN([CHECK_ATOMIC], [
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AC_LANG_PUSH(C++)
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AC_MSG_CHECKING([whether std::atomic can be used without link library])
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AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_ATOMIC_testbody])],[
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AC_MSG_RESULT([yes])
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],[
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AC_MSG_RESULT([no])
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LIBS="$LIBS -latomic"
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AC_MSG_CHECKING([whether std::atomic needs -latomic])
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AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_ATOMIC_testbody])],[
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AC_MSG_RESULT([yes])
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],[
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AC_MSG_RESULT([no])
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AC_MSG_FAILURE([cannot figure our how to use std::atomic])
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])
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])
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AC_LANG_POP
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])
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