Author: Daniel Baumann <daniel.baumann@progress-linux.org>
Description: Avoid overwriting build-environment.

diff -Naurp lzd.orig/configure lzd/configure
--- lzd.orig/configure
+++ lzd/configure
@@ -21,9 +21,9 @@ datarootdir='$(prefix)/share'
 infodir='$(datarootdir)/info'
 mandir='$(datarootdir)/man'
 CXX=g++
-CPPFLAGS=
-CXXFLAGS='-Wall -W -O2'
-LDFLAGS=
+#CPPFLAGS=
+#CXXFLAGS='-Wall -W -O2'
+#LDFLAGS=
 
 # checking whether we are using GNU C++.
 if /bin/sh -c "${CXX} --version" > /dev/null 2>&1 ; then true