parameterize FIND and SED

Makefile.PL

@@ -13,6 +13,18 @@ pure_install:: extra_install
 
 VER=$(shell perl -e '$$_=<>;print m/\((.*?)\)/'<debian/changelog)
 
+# Parameterized programs used by Makefile.
+FIND?=find
+SED?=sed
+
+# Additional configurable path variables.
+W3M_CGI_BIN?=$(PREFIX)/lib/w3m/cgi-bin
+
+tflag=$(shell if [ -n "$$NOTAINT" ] && [ "$$NOTAINT" != 1 ]; then printf -- "-T"; fi)
+extramodules=$(shell if [ "$$PROFILE" = 1 ]; then printf -- "-d:NYTProf"; fi)
+outprogs=ikiwiki.out ikiwiki-transition.out ikiwiki-calendar.out
+scripts=ikiwiki-update-wikilist ikiwiki-makerepo
+
 PROBABLE_INST_LIB=$(shell \\
 	if [ "$(INSTALLDIRS)" = "perl" ]; then \\
 		echo $(INSTALLPRIVLIB); \\
@@ -23,14 +35,6 @@ PROBABLE_INST_LIB=$(shell \\
 	fi \\
 )
 
-# Additional configurable path variables.
-W3M_CGI_BIN?=$(PREFIX)/lib/w3m/cgi-bin
-
-tflag=$(shell if [ -n "$$NOTAINT" ] && [ "$$NOTAINT" != 1 ]; then printf -- "-T"; fi)
-extramodules=$(shell if [ "$$PROFILE" = 1 ]; then printf -- "-d:NYTProf"; fi)
-outprogs=ikiwiki.out ikiwiki-transition.out ikiwiki-calendar.out
-scripts=ikiwiki-update-wikilist ikiwiki-makerepo
-
 %.out: %.in
 	./pm_filter $(PREFIX) $(VER) $(PROBABLE_INST_LIB) < $< > $@
 	chmod +x $@
@@ -46,7 +50,7 @@ extra_build: $(outprogs) ikiwiki.setup docwiki
 	./mdwn2man ikiwiki-update-wikilist 1 doc/ikiwiki-update-wikilist.mdwn > ikiwiki-update-wikilist.man
 	./mdwn2man ikiwiki-calendar 1 doc/ikiwiki-calendar.mdwn > ikiwiki-calendar.man
 	$(MAKE) -C po
-	sed -i.bkp "s/Version:.*/Version: $$(perl -e '$$_=<>;print m/\((.*?)\)/'<debian/changelog)/" ikiwiki.spec
+	$(SED) -i.bkp "s/Version:.*/Version: $$(perl -e '$$_=<>;print m/\((.*?)\)/'<debian/changelog)/" ikiwiki.spec
 	rm -f ikiwiki.spec.bkp
 	
 docwiki:
@@ -63,9 +67,9 @@ myclean: clean
 
 underlay_install:
 	install -d $(DESTDIR)$(PREFIX)/share/ikiwiki
-	for dir in `cd underlays && find . -follow -type d ! -regex '.*\.svn.*'`; do \
+	for dir in `cd underlays && $(FIND) . -follow -type d ! -regex '.*\.svn.*'`; do \
 		install -d $(DESTDIR)$(PREFIX)/share/ikiwiki/$$dir; \
-		for file in `find underlays/$$dir -follow -maxdepth 1 -type f`; do \
+		for file in `$(FIND) underlays/$$dir -follow -maxdepth 1 -type f`; do \
 			cp -aL $$file $(DESTDIR)$(PREFIX)/share/ikiwiki/$$dir 2>/dev/null || \
 			install -m 644 $$file $(DESTDIR)$(PREFIX)/share/ikiwiki/$$dir; \
 		done; \
@@ -95,26 +99,26 @@ underlay_install:
 
 extra_install: underlay_install
 	# Install example sites.
-	for dir in `cd doc/examples; find . -type d ! -regex '.*\.svn.*'`; do \
+	for dir in `cd doc/examples; $(FIND) . -type d ! -regex '.*\.svn.*'`; do \
 		install -d $(DESTDIR)$(PREFIX)/share/ikiwiki/examples/$$dir; \
 	done
-	for file in `cd doc/examples; find . -type f ! -regex '.*\.svn.*'`; do \
+	for file in `cd doc/examples; $(FIND) . -type f ! -regex '.*\.svn.*'`; do \
 		cp -aL doc/examples/$$file $(DESTDIR)$(PREFIX)/share/ikiwiki/examples/$$file 2>/dev/null || \
 		install -m 644 doc/examples/$$file $(DESTDIR)$(PREFIX)/share/ikiwiki/examples/$$file; \
 	done
 
-	for dir in `find templates -follow -type d ! -regex '.*\.svn.*'`; do \
+	for dir in `$(FIND) templates -follow -type d ! -regex '.*\.svn.*'`; do \
 		install -d $(DESTDIR)$(PREFIX)/share/ikiwiki/$$dir; \
-		for file in `find $$dir -follow -maxdepth 1 -type f`; do \
+		for file in `$(FIND) $$dir -follow -maxdepth 1 -type f`; do \
 			install -m 644 $$file $(DESTDIR)$(PREFIX)/share/ikiwiki/$$dir; \
 		done; \
 	done
 	
 	install -d $(DESTDIR)$(PREFIX)/lib/ikiwiki/plugins
-	for file in `find plugins -maxdepth 1 -type f ! -path plugins/.\* ! -name \*demo\* -name \*.py`; do \
+	for file in `$(FIND) plugins -maxdepth 1 -type f ! -path plugins/.\* ! -name \*demo\* -name \*.py`; do \
 		install -m 644 $$file $(DESTDIR)$(PREFIX)/lib/ikiwiki/plugins; \
 	done
-	for file in `find plugins -maxdepth 1 -type f ! -path plugins/.\* ! -name \*demo\* ! -name \*.py ! -name \*.pyc`; do \
+	for file in `$(FIND) plugins -maxdepth 1 -type f ! -path plugins/.\* ! -name \*demo\* ! -name \*.py ! -name \*.pyc`; do \
 		install -m 755 $$file $(DESTDIR)$(PREFIX)/lib/ikiwiki/plugins; \
 	done
 
@@ -136,7 +140,7 @@ extra_install: underlay_install
 
 	install -d $(DESTDIR)$(PREFIX)/bin
 	for prog in $(outprogs) $(scripts); do \
-		install $$prog $(DESTDIR)$(PREFIX)/bin/$$(echo $$prog | sed 's/\.out//'); \
+		install $$prog $(DESTDIR)$(PREFIX)/bin/$$(echo $$prog | $(SED) 's/\.out//'); \
 	done
 
 	$(MAKE) -C po install DESTDIR=$(DESTDIR) PREFIX=$(PREFIX)

README

@@ -14,6 +14,10 @@ A few special variables you can set while using the Makefile.PL:
   unless your perl is less buggy than mine -- see
   http://bugs.debian.org/411786)
 
+  MAKE, FIND, and SED can be used to specify where you have the GNU
+  versions of those tools installed, if the normal make, find, and sed
+  are not GNU.
+
   There are also other variables supported by MakeMaker, including PREFIX,
   INSTALL_BASE, and DESTDIR. See ExtUtils::MakeMaker(3).