Update libunwind configuration check to look for unw_backtrace().
Update libunwind configuration check to look for unw_backtrace(), which is a newer API not available in older versions of libunwind.
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@ -702,7 +702,7 @@ fi,
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if test "x$backtrace_method" = "x" -a "x$enable_prof_libunwind" = "x1" ; then
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if test "x$backtrace_method" = "x" -a "x$enable_prof_libunwind" = "x1" ; then
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AC_CHECK_HEADERS([libunwind.h], , [enable_prof_libunwind="0"])
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AC_CHECK_HEADERS([libunwind.h], , [enable_prof_libunwind="0"])
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if test "x$LUNWIND" = "x-lunwind" ; then
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if test "x$LUNWIND" = "x-lunwind" ; then
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AC_CHECK_LIB([unwind], [backtrace], [LIBS="$LIBS $LUNWIND"],
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AC_CHECK_LIB([unwind], [unw_backtrace], [LIBS="$LIBS $LUNWIND"],
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[enable_prof_libunwind="0"])
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[enable_prof_libunwind="0"])
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else
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else
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LIBS="$LIBS $LUNWIND"
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LIBS="$LIBS $LUNWIND"
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