Add build directory housekeeping to build section.
- Use macros for configure parameters.
- Do the build in a separate directory.
- Prepare for testing, but not enable it yet.
- Correctly copy the NEWS file to the top level directory, for the doc
  section to find it.
- Cd to build directory before doing install.
- Use makeinstall macro, w/o options.
- Remove workaround for broken gdb info files. Part of fix for bug 77615.
- Remove share/locale directory, it is in binutils.
- Remove info/dir file.
- Clarify meaning of post-install section.
- Add gdbint info files to post-install, pre-uninstall and files sections.
  Part of fix for bugs 77615, 76423.
- Add libmmalloc.a to package.