Refreshing build.patch.

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

debian/patches/0001-build.patch

@@ -7,7 +7,7 @@ diff -Naurp lziprecover.orig/configure lziprecover/configure
 @@ -23,9 +23,9 @@ datarootdir='$(prefix)/share'
  infodir='$(datarootdir)/info'
  mandir='$(datarootdir)/man'
- CXX=
+ CXX=g++
 -CPPFLAGS=
 -CXXFLAGS='-Wall -W -O2'
 -LDFLAGS=
@@ -15,5 +15,5 @@ diff -Naurp lziprecover.orig/configure lziprecover/configure
 +#CXXFLAGS='-Wall -W -O2'
 +#LDFLAGS=
  
- # Loop over all args
- while [ -n "$1" ] ; do
+ # checking whether we are using GNU C++.
+ if [ ! -x /bin/g++ ] &&