From 1b6769f6a547daf6522e03f0ed9921e74c28176b Mon Sep 17 00:00:00 2001
From: William Kendrick <wkendrick@users.sourceforge.net>
Date: Tue, 11 Jan 2011 17:49:16 +0000
Subject: [PATCH] Trying to detect whether 'gperf' is installed, and if not,
 abort build.

---
 Makefile | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index ff82ed497..b9fd2367b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,10 @@
 # Tux Paint - A simple drawing program for children.
 
-# Copyright (c) 2002-2010 by Bill Kendrick and others
+# Copyright (c) 2002-2011 by Bill Kendrick and others
 # bill@newbreedsoftware.com
 # http://www.tuxpaint.org/
 
-# June 14, 2002 - April 27, 2010
+# June 14, 2002 - January 11, 2011
 
 
 # The version number, for release:
@@ -960,12 +960,17 @@ obj/tuxpaint.o:	src/tuxpaint.c \
 obj/parse.c:	obj/parse_step1.c
 	@echo
 	@echo "...Generating the command-line and config file parser (STEP 2)..."
-	sed -r -e 's/^const struct/static const struct/' -e 's/_GNU/_TUX/' obj/parse_step1.c > obj/parse.c
+	@sed -r -e 's/^const struct/static const struct/' -e 's/_GNU/_TUX/' obj/parse_step1.c > obj/parse.c
 	
 obj/parse_step1.c:	src/parse.gperf
 	@echo
 	@echo "...Generating the command-line and config file parser (STEP 1)..."
-	@gperf src/parse.gperf > obj/parse_step1.c
+	@if [ -x /usr/bin/gperf ] ; then \
+		gperf src/parse.gperf > obj/parse_step1.c ; \
+	else \
+		echo "Please install 'gperf' and try again!" ; \
+		false ; \
+	fi
 
 obj/parse.o:	obj/parse.c src/parse.h src/compiler.h
 	@echo