diff --git a/build.sh b/build.sh
index 3efb44f64047c5bdeedf6dc5d646230645a4afcd..cede2e48f2fc8cf3725ae04c9928e7862f1dd864 100755 (executable)
--- a/build.sh
+++ b/build.sh
#! /bin/sh
+if ! which lex > /dev/null 2>&1; then
+ echo "WARNING: lex not found!" >&2
+ echo "Make sure that you have a flex compatible tool available." >&2
+fi
+
+if ! which yacc > /dev/null 2>&1; then
+ echo "WARNING: yacc not found!" >&2
+ echo "Make sure that you have a GNU bison compatible tool available." >&2
+fi
+
libtoolize=libtoolize
if which glibtoolize > /dev/null 2>&1; then