--- GNUmakefile.orig	2021-01-14 15:45:22 UTC
+++ GNUmakefile
@@ -15,9 +15,8 @@ LDLIBS=-liconv
 endif
 
 DESTDIR=
-PREFIX=/usr/local
 BINDIR=$(PREFIX)/bin
-MANDIR=$(PREFIX)/share/man
+MANDIR=$(PREFIX)/man
 
 ALL = maddr magrep mdate mdeliver mdirs mexport mflag mflow mgenmid mhdr minc mlist mmime mpick mscan msed mseq mshow msort mthread
 SCRIPT = mcolor mcom mless mmkdir mquote museragent
@@ -57,14 +56,15 @@ install: FRC all
 		$(DESTDIR)$(MANDIR)/man1 \
 		$(DESTDIR)$(MANDIR)/man5 \
 		$(DESTDIR)$(MANDIR)/man7
-	install -m0755 $(ALL) $(SCRIPT) $(DESTDIR)$(BINDIR)
+	$(BSD_INSTALL_PROGRAM) $(ALL) $(DESTDIR)$(BINDIR)
+	$(BSD_INSTALL_SCRIPT) $(SCRIPT) $(DESTDIR)$(BINDIR)
 	ln -sf mcom $(DESTDIR)$(BINDIR)/mbnc
 	ln -sf mcom $(DESTDIR)$(BINDIR)/mfwd
 	ln -sf mcom $(DESTDIR)$(BINDIR)/mrep
 	ln -sf mdeliver $(DESTDIR)$(BINDIR)/mrefile
-	install -m0644 man/*.1 $(DESTDIR)$(MANDIR)/man1
-	install -m0644 man/*.5 $(DESTDIR)$(MANDIR)/man5
-	install -m0644 man/*.7 $(DESTDIR)$(MANDIR)/man7
+	$(BSD_INSTALL_MAN) man/*.1 $(DESTDIR)$(MANDIR)/man1
+	$(BSD_INSTALL_MAN) man/*.5 $(DESTDIR)$(MANDIR)/man5
+	$(BSD_INSTALL_MAN) man/*.7 $(DESTDIR)$(MANDIR)/man7
 
 release:
 	VERSION=$$(git describe --tags | sed 's/^v//;s/-[^.]*$$//') && \
