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@@ -379,14 +379,12 @@ AC_CHECK_FUNCS(
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accept4 \
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backtrace \
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backtrace_symbols_fd \
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- clock_gettime \
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eventfd \
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explicit_bzero \
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timingsafe_memcmp \
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flock \
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ftime \
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getaddrinfo \
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- getentropy \
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getifaddrs \
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getpass \
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getrlimit \
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@@ -424,6 +422,34 @@ AC_CHECK_FUNCS(
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_vscprintf
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)
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+# Apple messed up when they added two functions functions in Sierra: they
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+# forgot to decorate them with appropriate AVAILABLE_MAC_OS_VERSION
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+# checks. So we should only probe for those functions if we are sure that we
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+# are not targetting OSX 10.11 or earlier.
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+AC_MSG_CHECKING([for a pre-Sierra OSX build target])
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+AC_TRY_COMPILE([
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+#ifdef __APPLE__
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+# include <AvailabilityMacros.h>
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+# ifndef MAC_OS_VERSION_10_12
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+# define MAC_OS_VERSION_10_12 101200
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+# endif
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+# if defined(MAC_OS_X_VERSION_MIN_REQUIRED)
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+# if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_VERSION_10_12
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+# error "Running on Mac OSX 10.11 or earlier"
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+# endif
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+# endif
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+#endif
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+], [],
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+ [on_macos_pre_10_12=no ; AC_MSG_RESULT([no])],
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+ [on_macos_pre_10_12=yes; AC_MSG_RESULT([yes])])
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+
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+if test "$on_macos_pre_10_12" = "no"; then
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+ AC_CHECK_FUNCS(
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+ clock_gettime \
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+ getentropy \
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+ )
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+fi
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+
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if test "$bwin32" != "true"; then
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AC_CHECK_HEADERS(pthread.h)
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AC_CHECK_FUNCS(pthread_create)
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