Otherwise, it would just fail if you hadn't run "make" already.
notmuch.1.gz:
gzip --stdout notmuch.1 > notmuch.1.gz
notmuch.1.gz:
gzip --stdout notmuch.1 > notmuch.1.gz
+install: all notmuch.1.gz
install -C -D notmuch $(DESTDIR)/usr/bin/notmuch
install -C -D notmuch.1.gz $(DESTDIR)/usr/share/man/man1
install -C -D notmuch-completion.bash \
install -C -D notmuch $(DESTDIR)/usr/bin/notmuch
install -C -D notmuch.1.gz $(DESTDIR)/usr/share/man/man1
install -C -D notmuch-completion.bash \