From 26915c14b7c6861c9364d7b3c38470c27612be3a Mon Sep 17 00:00:00 2001
From: Martin Stein <martin.stein@genode-labs.com>
Date: Wed, 4 Jan 2012 20:03:08 +0100
Subject: [PATCH] Add santity checks in 'tool/tool_chain', fix #62

In addition to autogen and autoconf, the tool-chain build script
requires ncurses (for building GDB), wget (to download the tool-chain
source code), and texinfo. Let the tool check if these packages are
installed instead of failing later during the build.
---
 tool/tool_chain | 31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/tool/tool_chain b/tool/tool_chain
index c7e951852..bfc5157d6 100755
--- a/tool/tool_chain
+++ b/tool/tool_chain
@@ -96,12 +96,39 @@ ifeq ($(AUTOCONF),)
 $(error Unknown autoconf version for GCC $(GCC_VERSION).)
 endif
 
+#
+# Check if 'autoconf' is installed
+#
 ifeq ($(shell which $(AUTOCONF)),)
-$(error Need to have $(AUTOCONF) installed.)
+$(error Need to have '$(AUTOCONF)' installed.)
 endif
 
+#
+# Check if 'libncurses' is installed
+#
+ifneq ($(shell $(LD) -lncurses -e0 -o /tmp/a.out && echo ok),ok)
+$(error Need to have 'libncurses' installed.)
+endif
+
+#
+# Check if 'texinfo' is installed
+#
+ifeq ($(shell which texi2pdf),)
+$(error Need to have 'texinfo' installed.)
+endif
+
+#
+# Check if 'wget' is installed
+#
+ifeq ($(shell which wget),)
+$(error Need to have 'wget' installed.)
+endif
+
+#
+# Check if 'autogen' is installed
+#
 ifeq ($(shell which autogen)),)
-$(error Need to have autogen installed.)
+$(error Need to have 'autogen' installed.)
 endif
 
 #