git-remote-mediawiki: use toplevel's Makefile

This makes the Makefile simpler, while providing more features, and more
consistency (the exact same rules with the exact same configuration as
Git official commands are applied with the new version).

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

contrib/mw-to-git/.gitignore

@@ -0,0 +1 @@
+git-remote-mediawiki

contrib/mw-to-git/Makefile

@@ -1,47 +1,17 @@
 #
-# Copyright (C) 2012
-#     Charles Roussel <charles.roussel@ensimag.imag.fr>
-#     Simon Cathebras <simon.cathebras@ensimag.imag.fr>
-#     Julien Khayat <julien.khayat@ensimag.imag.fr>
-#     Guillaume Sasdy <guillaume.sasdy@ensimag.imag.fr>
-#     Simon Perrat <simon.perrat@ensimag.imag.fr>
+# Copyright (C) 2013
+#     Matthieu Moy <Matthieu.Moy@imag.fr>
 #
 ## Build git-remote-mediawiki
 
--include ../../config.mak.autogen
--include ../../config.mak
+SCRIPT_PERL=git-remote-mediawiki.perl
+GIT_ROOT_DIR=../..
+HERE=contrib/mw-to-git/
 
-ifndef PERL_PATH
-	PERL_PATH = /usr/bin/perl
-endif
-ifndef gitexecdir
-	gitexecdir = $(shell git --exec-path)
-endif
+SCRIPT_PERL_FULL=$(patsubst %,$(HERE)/%,$(SCRIPT_PERL))
 
-PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH))
-gitexecdir_SQ = $(subst ','\'',$(gitexecdir))
-SCRIPT = git-remote-mediawiki
+all: build
 
-.PHONY: install help doc test clean
-
-help:
-	@echo 'This is the help target of the Makefile. Current configuration:'
-	@echo '  gitexecdir = $(gitexecdir_SQ)'
-	@echo '  PERL_PATH = $(PERL_PATH_SQ)'
-	@echo 'Run "$(MAKE) install" to install $(SCRIPT) in gitexecdir'
-	@echo 'Run "$(MAKE) test" to run the testsuite'
-
-install:
-	sed -e '1s|#!.*/perl|#!$(PERL_PATH_SQ)|' $(SCRIPT) \
-		> '$(gitexecdir_SQ)/$(SCRIPT)'
-	chmod +x '$(gitexecdir)/$(SCRIPT)'
-
-doc:
-	@echo 'Sorry, "make doc" is not implemented yet for $(SCRIPT)'
-
-test:
-	$(MAKE) -C t/ test
-
-clean:
-	$(RM) '$(gitexecdir)/$(SCRIPT)'
-	$(MAKE) -C t/ clean
+build install clean:
+	$(MAKE) -C $(GIT_ROOT_DIR) SCRIPT_PERL=$(SCRIPT_PERL_FULL) \
+                $@-perl-script