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

diff -Naurp plzip.orig/configure plzip/configure
--- plzip.orig/configure	2012-06-27 16:06:34.898944777 +0200
+++ plzip/configure	2012-06-30 12:47:21.829197850 +0200
@@ -23,9 +23,9 @@ datarootdir='$(prefix)/share'
 infodir='$(datarootdir)/info'
 mandir='$(datarootdir)/man'
 CXX=
-CPPFLAGS=
-CXXFLAGS='-Wall -W -O2'
-LDFLAGS=
+#CPPFLAGS=
+#CXXFLAGS='-Wall -W -O2'
+#LDFLAGS=
 
 # Loop over all args
 while [ -n "$1" ] ; do