ncurses 5.8 - patch 20110402

ncurses 5.8 - patch 20110402

+ various build-fixes for the rpm/dpkg scripts.
+ add "--enable-rpath-link" option to Ada95/configure, to allow
  packages to suppress the rpath feature which is normally used for
  the in-tree build of sample programs.
+ corrected definition of libdir variable in Ada95/src/Makefile.in,
  needed for rpm script.
+ add "--with-shared" option to Ada95/configure script, to allow
  making the C-language parts of the binding use appropriate compiler
  options if building a shared library with gnat.