[Swan-commit] Changes to ref refs/heads/hugh-wip

[D. Hugh Redelmeier]

New commits:
commit 805ff7c15f3618c6c8ca7c8c20d5af86a5aa6c8d
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Fri Nov 8 02:43:26 2013 -0500

    Better modularity discipline
    
    - add -Wmissing-declarations to warn when an external is being defined
      without a declaration.  Each external should be declared in exactly one
      header and this catches most failures.  It also catches some things that
      should be file static.
    
    - added -Wredundant-decls to catch things declared twice.
      Oddly enough our code base did this.  A bad sign of
      "who knows where this belongs?".
    
    - added -Wnested-externs to catch extern declarations
      inside blocks.  These are legal but bad form.
    
    - made many changes to fix the things caught by these tools
    
    - eliminated NO_DEBUG.  This required some fancy work with
      exit_tool declarations and definitions.  I'd like to
      eliminate it but it is used in testing/ in a way I don't
      understand.
    
    - deleted some unused functions (discovered when converted to file static)
    
    - fixed declarations "liberswan*" to "libreswan*"
    
    Still to do:
    
    - still some mess due to the ill-disciplined nature of declarations
      generated by bison and flex.  We can do better, but I haven't
      gotten there.
    
    - further progress towards a one-to-one correspondence between .h and .c
      files.
    
    - discover unused externals