+# Regenerate (overwriting only if changed):
+#
+# reentr.h
+# reentr.c
+#
+# from information stored in the DATA section of this file.
+#
+# With the -U option, it also unconditionally regenerates the relevant
+# metaconfig units:
+#
+# d_${func}_r.U
+#
+# Also accepts the standard regen_lib -q and -v args.
+#
+# This script is normally invoked from regen.pl.