Imported Upstream version 2.4.3

m4/nut_report_feature.m4

@@ -0,0 +1,23 @@
+dnl automated feature report at the end of configure script
+
+AC_DEFUN([NUT_REPORT],
+[  if test -z "${nut_report_feature_flag}"; then
+      nut_report_feature_flag="1"
+      ac_clean_files="${ac_clean_files} conf_nut_report_feature"
+      echo > conf_nut_report_feature
+      echo "Configuration summary:" >> conf_nut_report_feature
+   fi
+   echo "$1: $2" >> conf_nut_report_feature
+])
+
+AC_DEFUN([NUT_REPORT_FEATURE],
+[
+   AC_MSG_CHECKING([whether to $1])
+   AC_MSG_RESULT([$2])
+   NUT_REPORT([$1], [$2])
+])
+
+AC_DEFUN([NUT_PRINT_FEATURE_REPORT],
+[
+   cat conf_nut_report_feature
+])