Refreshing build.patch.

Signed-off-by: Daniel Baumann <daniel@debian.org>

debian/patches/debian/0001-build.patch

@@ -4,13 +4,15 @@ Description: Avoid overwriting build-environment.
 diff -Naurp zutils.orig/configure zutils/configure
 --- zutils.orig/configure
 +++ zutils/configure
-@@ -21,9 +21,9 @@ infodir='$(datarootdir)/info'
+@@ -20,10 +20,10 @@ datarootdir='$(prefix)/share'
+ infodir='$(datarootdir)/info'
  mandir='$(datarootdir)/man'
  sysconfdir='$(prefix)/etc'
- CXX=g++
+-CXX=g++
 -CPPFLAGS=
 -CXXFLAGS='-Wall -W -O2'
 -LDFLAGS=
++#CXX=g++
 +#CPPFLAGS=
 +#CXXFLAGS='-Wall -W -O2'
 +#LDFLAGS=