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diff --git a/src/compat/glibc_compat.cpp b/src/compat/glibc_compat.cpp
new file mode 100644
index 0000000000..5b73e6051a
--- /dev/null
+++ b/src/compat/glibc_compat.cpp
@@ -0,0 +1,19 @@
+#include "bitcoin-config.h"
+#include <cstddef>
+#include <sys/select.h>
+
+// Prior to GLIBC_2.14, memcpy was aliased to memmove.
+extern "C" void* memmove(void* a, const void* b, size_t c);
+extern "C" void* memcpy(void* a, const void* b, size_t c)
+{
+ return memmove(a, b, c);
+}
+
+extern "C" void __chk_fail (void) __attribute__((__noreturn__));
+extern "C" FDELT_TYPE __fdelt_warn(FDELT_TYPE a)
+{
+ if (a >= FD_SETSIZE)
+ __chk_fail ();
+ return a / __NFDBITS;
+}
+extern "C" FDELT_TYPE __fdelt_chk(FDELT_TYPE) __attribute__((weak, alias("__fdelt_warn")));
diff --git a/src/compat/glibcxx_compat.cpp b/src/compat/glibcxx_compat.cpp
new file mode 100644
index 0000000000..6e04f67459
--- /dev/null
+++ b/src/compat/glibcxx_compat.cpp
@@ -0,0 +1,80 @@
+#include <cstddef>
+#include <istream>
+#include <stdexcept>
+#include <typeinfo>
+
+#ifndef _GLIBCXX_USE_NOEXCEPT
+ #define _GLIBCXX_USE_NOEXCEPT throw()
+#endif
+
+namespace std {
+
+const char* bad_exception::what() const throw()
+{
+ return "std::bad_exception";
+}
+
+const char* bad_cast::what() const throw()
+{
+ return "std::bad_cast";
+}
+
+const char* bad_alloc::what() const throw()
+{
+ return "std::bad_alloc";
+}
+
+namespace __detail
+{
+struct _List_node_base
+{
+ void _M_hook(std::__detail::_List_node_base* const __position) throw () __attribute__((used))
+ {
+ _M_next = __position;
+ _M_prev = __position->_M_prev;
+ __position->_M_prev->_M_next = this;
+ __position->_M_prev = this;
+ }
+ void _M_unhook() __attribute__((used))
+ {
+ _List_node_base* const __next_node = _M_next;
+ _List_node_base* const __prev_node = _M_prev;
+ __prev_node->_M_next = __next_node;
+ __next_node->_M_prev = __prev_node;
+ }
+ _List_node_base* _M_next;
+ _List_node_base* _M_prev;
+};
+} // namespace detail
+
+template ostream& ostream::_M_insert(bool);
+template ostream& ostream::_M_insert(long);
+template ostream& ostream::_M_insert(double);
+template ostream& ostream::_M_insert(unsigned long);
+template ostream& ostream::_M_insert(const void*);
+template ostream& __ostream_insert(ostream&, const char*, streamsize);
+template istream& istream::_M_extract(long&);
+template istream& istream::_M_extract(unsigned short&);
+
+out_of_range::~out_of_range() _GLIBCXX_USE_NOEXCEPT { }
+
+// Used with permission.
+// See: https://github.com/madlib/madlib/commit/c3db418c0d34d6813608f2137fef1012ce03043d
+
+void
+ctype<char>::_M_widen_init() const {
+ char __tmp[sizeof(_M_widen)];
+ for (unsigned __i = 0; __i < sizeof(_M_widen); ++__i)
+ __tmp[__i] = __i;
+ do_widen(__tmp, __tmp + sizeof(__tmp), _M_widen);
+
+ _M_widen_ok = 1;
+ // Set _M_widen_ok to 2 if memcpy can't be used.
+ for (unsigned __i = 0; __i < sizeof(_M_widen); ++__i)
+ if (__tmp[__i] != _M_widen[__i]) {
+ _M_widen_ok = 2;
+ break;
+ }
+}
+
+}// namespace std

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