+
+#
+# Here's an interesting one - when using the win32 version
+# of install (provided via the cygwin toolkit), we have to
+# supply the .exe suffix, *if* there's no other suffix.
+#
+# The rule below does this by ferreting out the suffix of each
+# entry in the INSTALL_PROGS list. If there's no suffix, use
+# $(exeext).
+#
+# This is bit of a pain to express since GNU make doesn't have
+# something like $(if ...), but possible using $(subst ..)
+# [Aside: I added support for $(if ..) to my local copy of GNU
+# make at one stage, perhaps I should propagate the patch to
+# the GNU make maintainers..]
+#
+INSTALL_PROGS := $(foreach p, $(INSTALL_PROGS), $(addsuffix $(subst _,,$(subst __,$(exeext),_$(suffix $(p))_)), $(basename $(p))))
+