changeset 1127:87625964c333

debian: remove .PHONY line completely

This does not work in the case of implicit pattern matching rules as
used by dh. Consider this example from Geoffrey Thomas:

    $ ls -l
    total 16
    -rw-r--r-- 1 faheem faheem 17 Aug 16 20:27 blue.c
    -rw-r--r-- 1 faheem faheem 17 Aug 16 20:27 green.c
    -rw-r--r-- 1 faheem faheem 35 Aug 16 20:26 Makefile
    -rw-r--r-- 1 faheem faheem 17 Aug 16 20:27 red.c

    $ cat Makefile
    %: %.c
            gcc -o $@ $<
    .PHONY: blue

    $ make red
    gcc -o red red.c

    $ make green
    gcc -o green green.c

    $ make blue
    make: Nothing to be done for blue'.

The Make manual
(http://www.gnu.org/software/make/manual/make.html#Phony-Targets) says

    Since it knows that phony targets do not name actual files that
    could be remade from other files, make skips the implicit rule
    search for phony targets (see Implicit Rules).

Thanks to the good folks on #debian-mentors on OFTC for instruction
and explanation in these matters.

--- a/debian/rules	Sat Oct 11 02:14:12 2014 +0530
+++ b/debian/rules	Sat Oct 11 02:27:21 2014 +0530
@@ -26,5 +26,3 @@
 	rm -rf html
 	rm -f docs/static/logo-evolve.ico
 	rm -f docs/tutorials/tutorial.rst
-
-.PHONY: build clean clean-docs