$NetBSD: patch-Makefile.in,v 1.1 2014/02/27 15:56:54 hauke Exp $

At least on SunOS, lang/nawk (nawk-20050424nb3) insists on
a space between -f and the program file name, by penalty of
"/opt/local/bin/nawk: no program filename"

--- Makefile.in.orig	2014-02-22 20:56:13.000000000 +0000
+++ Makefile.in
@@ -1221,8 +1221,8 @@ install-exec-hook:
 		sed -e "s|@SYSCONFDIR@|$(sysconfdir)|g" $(srcdir)/tmux.1 \
 			>$(srcdir)/tmux.1.mdoc; \
 	else \
-		sed -e "s|@SYSCONFDIR@|$(sysconfdir)|g" $(srcdir)/tmux.1| \
-			$(AWK) -fmdoc2man.awk >$(srcdir)/tmux.1.man; \
+		sed -e "s|@SYSCONFDIR@|$(sysconfdir)|g" $(srcdir)/tmux.1 | \
+			$(AWK) -f mdoc2man.awk >$(srcdir)/tmux.1.man; \
 	fi
 	$(MKDIR_P) $(DESTDIR)$(mandir)/man1
 	$(INSTALL_DATA) $(srcdir)/tmux.1.@MANFORMAT@ \