+# Include global overrides and fixes for Autoconf.
+
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+# _AC_OUTPUT_SUBDIRS
+# ------------------
+# This is a subroutine of AC_OUTPUT, but it does not go into
+# config.status, rather, it is called after running config.status.
+# _AC_OUTPUT_SUBDIRS
+
+
+
+
+# _AC_ARG_VAR_VALIDATE
+# --------------------
+# The code is the same as autoconf 2.59, but with a more lenient check
+# on precious variables and an output of pwd that have been added in
+# autoconf 2.62.
+# _AC_ARG_VAR_VALIDATE
+
+
+
+
+# AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1])
+# ----------------------------------------
+# This is the same code as in 2.59 and 2.61, except it also outputs pwd.
+
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+