tweaks
diff --git a/unix/make/Makefile.BOT b/unix/make/Makefile.BOT
index ed00e30..39dec9d 100644
--- a/unix/make/Makefile.BOT
+++ b/unix/make/Makefile.BOT
@@ -15,7 +15,7 @@
 	rm -rf $(NAME)-$(VERSION)
 
 clean:
-	rm -f $(OFILES) $(LIB)
+	rm -f $(OFILES) $(LIB) $(CLEANFILES)
 
 nuke:
 	rm -f $(OFILES) *.tgz *.rpm $(NUKEFILES)
diff --git a/unix/make/Makefile.CMD b/unix/make/Makefile.CMD
index 6a1e901..ca1e669 100644
--- a/unix/make/Makefile.CMD
+++ b/unix/make/Makefile.CMD
@@ -2,7 +2,3 @@
 $(TARG): $(OFILES)
 	$(CC) -o $(TARG) $(OFILES) -L$(PREFIX)/lib -L../libutf -L../libfmt -L../libbio -L../libregexp -lregexp9 -lbio -lfmt -lutf
 
-
-clean:
-	rm -f $(OFILES) $(TARG)
-
diff --git a/unix/make/Makefile.TOP b/unix/make/Makefile.TOP
index f6abc8c..c5a613d 100644
--- a/unix/make/Makefile.TOP
+++ b/unix/make/Makefile.TOP
@@ -18,3 +18,5 @@
 
 TGZFILES=
 
+CLEANFILES=
+
diff --git a/unix/make/Makefile.bio b/unix/make/Makefile.bio
index 295e351..00a0b69 100644
--- a/unix/make/Makefile.bio
+++ b/unix/make/Makefile.bio
@@ -28,9 +28,11 @@
 all: $(LIB)
 
 install: $(LIB)
-	test -d $(PREFIX)/man/man3 || mkdir $(PREFIX)/man/man3
+	mkdir -p $(PREFIX)/man/man3
 	install -m 0644 bio.3 $(PREFIX)/man/man3/bio.3
+	mkdir -p $(PREFIX)/include
 	install -m 0644 bio.h $(PREFIX)/include
+	mkdir -p $(PREFIX)/lib
 	install -m 0644 $(LIB) $(PREFIX)/lib/$(LIB)
 
 bcat: bcat.$O $(LIB)
diff --git a/unix/make/Makefile.fmt b/unix/make/Makefile.fmt
index 85e9455..14657c6 100644
--- a/unix/make/Makefile.fmt
+++ b/unix/make/Makefile.fmt
@@ -53,7 +53,9 @@
 	test -d $(PREFIX)/man/man3 || mkdir $(PREFIX)/man/man3
 	install -m 0644 print.3 $(PREFIX)/man/man3/print.3
 	install -m 0644 fmtinstall.3 $(PREFIX)/man/man3/fmtinstall.3
+	mkdir -p $(PREFIX)/include
 	install -m 0644 fmt.h $(PREFIX)/include/fmt.h
+	mkdir -p $(PREFIX)/lib
 	install -m 0644 $(LIB) $(PREFIX)/lib/$(LIB)
 
 $(NAN).$O: nan.h
diff --git a/unix/make/Makefile.mk b/unix/make/Makefile.mk
index 2a06164..a80ad19 100644
--- a/unix/make/Makefile.mk
+++ b/unix/make/Makefile.mk
@@ -2,6 +2,7 @@
 VERSION=2.0
 PORTPLACE=devel/mk
 NAME=mk
+CLEANFILES=mk mk.1a
 
 OFILES=\
 	arc.$O\
@@ -38,10 +39,11 @@
 TGZFILES+=mk.pdf
 
 install: $(LIB)
-	test -d $(PREFIX)/man/man1 || mkdir $(PREFIX)/man/man1
-	test -d $(PREFIX)/doc || mkdir $(PREFIX)/doc
+	mkdir -p $(PREFIX)/bin
 	install -m 0755 mk $(PREFIX)/bin/mk
 	cat mk.1 | sed 's;DOCPREFIX;$(PREFIX);g' >mk.1a
+	mkdir -p $(PREFIX)/man/man1
 	install -m 0644 mk.1a $(PREFIX)/man/man1/mk.1
+	mkdir -p $(PREFIX)/doc
 	install -m 0644 mk.pdf $(PREFIX)/doc/mk.pdf
 
diff --git a/unix/make/Makefile.regexp b/unix/make/Makefile.regexp
index b098d36..5729981 100644
--- a/unix/make/Makefile.regexp
+++ b/unix/make/Makefile.regexp
@@ -19,11 +19,12 @@
 all: $(LIB)
 
 install: $(LIB)
-	test -d $(PREFIX)/man/man3 || mkdir $(PREFIX)/man/man3
-	test -d $(PREFIX)/man/man7 || mkdir $(PREFIX)/man/man7
+	mkdir -p $(PREFIX)/man/man3 $(PREFIX)/man/man7
 	install -m 0644 regexp9.3 $(PREFIX)/man/man3/regexp9.3
 	install -m 0644 regexp9.7 $(PREFIX)/man/man7/regexp9.7
+	mkdir -p $(PREFIX)/lib
 	install -m 0644 $(LIB) $(PREFIX)/lib/$(LIB)
+	mdir -p $(PREFIX)/include
 	install -m 0644 regexp9.h $(PREFIX)/include/regexp9.h
 
 test: test.$O $(LIB)
diff --git a/unix/make/Makefile.utf b/unix/make/Makefile.utf
index 4d15d10..10e7230 100644
--- a/unix/make/Makefile.utf
+++ b/unix/make/Makefile.utf
@@ -36,6 +36,8 @@
 	install -c -m 0644 utf.7 $(PREFIX)/man/man7/utf.7
 	install -c -m 0644 rune.3 $(PREFIX)/man/man3/rune.3
 	install -c -m 0644 runestrcat.3 $(PREFIX)/man/man3/runestrcat.3
+	mkdir -p $(PREFIX)/include
 	install -c -m 0644 utf.h $(PREFIX)/include/utf.h
+	mkdir -p $(PREFIX)/lib
 	install -c -m 0644 $(LIB) $(PREFIX)/lib/$(LIB)