hints for linux X11; typo fix (trunk only)

Add hints file for single-user linux X11.
Fix typo in macos-x11.
nethack.sh: don't run xset unless $DISPLAY is set

sys/unix/hints/linux-x11

@@ -0,0 +1,32 @@
+#      
+#      SCCS Id: @(#)linux 3.5     2007/12/16
+# Copyright (c) Kenneth Lorber, Kensington, Maryland, 2007.
+# NetHack may be freely redistributed.  See license for details. 
+#
+# Linux hints file
+# This hints file provides a single-user x11 build for Linux, specifically
+# for Ubuntu dapper.
+
+
+HACKDIR=$(PREFIX)/games/lib/$(GAME)dir
+#PREFIX=/usr
+PREFIX=$(wildcard ~)/nh/install
+
+CFLAGS=-O -I../include -DNOTPARMDECL $(CFLAGS1) $(CFLAGS3)
+CFLAGS1=-DCOMPRESS=\"/bin/gzip\" -DCOMPRESS_EXTENSION=\".gz\"
+CFLAGS3=-DX11_GRAPHICS -DDEFAULT_WINDOW_SYS=\"X11\" -DNOTTYGRAPHICS
+
+WINSRC = $(WINX11SRC)
+WINOBJ = $(WINX11OBJ)
+WINLIB = $(WINX11LIB)
+
+VARDATND = x11tiles NetHack.ad pet_mark.xbm
+
+#WINTTYLIB=-lcurses
+
+CHOWN=true
+CHGRP=true
+
+POSTINSTALL= bdftopcf win/X11/nh10.bdf > $(HACKDIR)/nh10.pcf; (cd $(HACKDIR); mkfontdir)
+
+# note: needs libxt-dev libxaw7-dev libx11-dev bdftopcf

sys/unix/hints/macosx-x11

@@ -37,4 +37,4 @@ VARDATND = x11tiles NetHack.ad pet_mark.xbm
 
 # XXX install nethack.rc as .nethackrc
 
-POSTINSTALL= bdftopcf win/X11/nh10.bdf > $(HACKDIR)/nh10.pcd; (cd $(HACKDIR); mkfontdir)
+POSTINSTALL= bdftopcf win/X11/nh10.bdf > $(HACKDIR)/nh10.pcf; (cd $(HACKDIR); mkfontdir)

sys/unix/nethack.sh

@@ -16,7 +16,7 @@ esac
 export XUSERFILESEARCHPATH
 
 # Get font dir added, but only once (and only if there's an xset to be found).
-test -e $HACKDIR/fonts.dir && xset p >/dev/null 2>&1 && (
+test -n "$DISPLAY" -a -e $HACKDIR/fonts.dir && xset p >/dev/null 2>&1 && (
 	xset fp- $HACKDIR >/dev/null 2>&1;
 	xset fp+ $HACKDIR
 )