Issue better warning message if dependencies not found

svn path=/trunk/boinc/; revision=5128

_autosetup

@@ -16,8 +16,7 @@ fi
 
 echo "Bootstrapping configure script and makefiles:"
 
-aclocal -I m4 && autoheader && automake && autoconf 
-
+if aclocal -I m4 && autoheader && automake && autoconf; then
     ## We don't always run ./configure ourselves here, because the user may not
    ## want to run it, or may want to run with custom parameters.
 
@@ -29,4 +28,10 @@ else
 	echo "Done, now run ./configure"
 	echo " ./configure -C                         to enable caching"
 	echo " ./configure --enable-maintainer-mode   to enable maintainer depedencies"
+	exit 0
+    fi
+else
+    echo "Something failed .... please check error-message and re-run when fixed."
+    echo "exiting..."
+    exit 1
 fi