Removes 'proto' dir

See #137 for the issue.

Every header in the proto directory was:

* Given include guards in the form

    #ifndef NEOVIM_FILENAME_H
    #define NEOVIM_FILENAME_H
        ...
    #endif /* NEOVIM_FILENAM_H */

* Renamed from *.pro -> *.h
* Moved from src/proto/ to src/

This would have caused conficts with some existing headers in src/;
rather than merge these conflicts now (which is a whole other can of
worms involving multiple and conditional inclusion), any header in src/
with a conflicting name was renamed from *.h -> *_defs.h (which may or
may not actually describe its purpose, the change is purely a
namespacing issue).

Once all of these changes were made a script was developed to determine
what #includes needed to be added to each source file to describe its
dependencies and allow it to compile; because the script is so short
and I'll just list it here:

    #! /bin/bash

    cd $(dirname $0)

    # Scrapes `make` output for provided error messages and outputs #includes
    # needed to resolve them.
    #   $1 : part of the clang error message between filename and identifier
    list_missing_includes() {
        for file_missing_pair in $(CC=clang make 2>&1 >/dev/null | sed -n "s/\/\(.*\.[hc]\).*$1.*'\(.*\)'.*/\1:\2/p"); do
            fields=(${file_missing_pair//:/ })
            source_file=${fields[0]}
            missing_func=${fields[1]}
            # Try to find the declaration of the missing function.
            echo $(basename $source_file) \
                \#include \"$(grep -r "\b$missing_func __ARGS" | sed -n "s/.*\/\(.*\)\:.*/\1/p")\"
        # Remove duplicates
        done | sort | uniq
    }

    echo "Finding missing function prototypes..."
    list_missing_includes "implicit declaration of function"
    echo "Finding missing identifier declarations..."
    list_missing_includes "use of undeclared identifier"

Each list of required headers was added by hand in the following format:

    #include "vim.h"
    #include "*_defs.h"
    #include "filename.h"
    /* All other includes in same module here, in alphabetical order. */
    /* All includes from other modules (e.g. "os/*.h") here in alphabetical
     * order. */

1 files changed, 351 insertions, 0 deletions

diff --git a/src/os_unix_defs.h b/src/os_unix_defs.h
new file mode 100644
index 0000000000..3eb79e9a25
--- /dev/null
+++ b/src/os_unix_defs.h
@@ -0,0 +1,351 @@
+/* vi:set ts=8 sts=4 sw=4:
+ *
+ * VIM - Vi IMproved	by Bram Moolenaar
+ *
+ * Do ":help uganda"  in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ */
+
+/*
+ * NextStep has a problem with configure, undefine a few things:
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+
+# include <sys/types.h>
+# include <sys/stat.h>
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+
+
+/* On AIX 4.2 there is a conflicting prototype for ioctl() in stropts.h and
+ * unistd.h.  This hack should fix that (suggested by Jeff George).
+ * But on AIX 4.3 it's alright (suggested by Jake Hamby). */
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#ifdef HAVE_LIBC_H
+# include <libc.h>                  /* for NeXT */
+#endif
+
+#ifdef HAVE_SYS_PARAM_H
+# include <sys/param.h>     /* defines BSD, if it's a BSD system */
+#endif
+
+/*
+ * Sun defines FILE on SunOS 4.x.x, Solaris has a typedef for FILE
+ */
+
+#ifndef __ARGS
+/* The AIX VisualAge cc compiler defines __EXTENDED__ instead of __STDC__
+ * because it includes pre-ansi features. */
+# if defined(__STDC__) || defined(__GNUC__) || defined(__EXTENDED__)
+#  define __ARGS(x) x
+# else
+#  define __ARGS(x) ()
+# endif
+#endif
+
+/* always use unlink() to remove files */
+#  define vim_mkdir(x, y) mkdir((char *)(x), y)
+#  define mch_rmdir(x) rmdir((char *)(x))
+#  define mch_remove(x) unlink((char *)(x))
+
+/* The number of arguments to a signal handler is configured here. */
+/* It used to be a long list of almost all systems. Any system that doesn't
+ * have an argument??? */
+#define SIGHASARG
+
+/* List 3 arg systems here. I guess __sgi, please test and correct me. jw. */
+
+#ifdef SIGHASARG
+# ifdef SIGHAS3ARGS
+#  define SIGPROTOARG   (int, int, struct sigcontext *)
+#  define SIGDEFARG(s)  (s, sig2, scont) int s, sig2; struct sigcontext *scont;
+#  define SIGDUMMYARG   0, 0, (struct sigcontext *)0
+# else
+#  define SIGPROTOARG   (int)
+#  define SIGDEFARG(s)  (s) int s;
+#  define SIGDUMMYARG   0
+# endif
+#else
+# define SIGPROTOARG   (void)
+# define SIGDEFARG(s)  ()
+# define SIGDUMMYARG
+#endif
+
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+# ifndef NAMLEN
+#  define NAMLEN(dirent) strlen((dirent)->d_name)
+# endif
+#else
+# define dirent direct
+# define NAMLEN(dirent) (dirent)->d_namlen
+# if HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif
+# if HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif
+# if HAVE_NDIR_H
+#  include <ndir.h>
+# endif
+#endif
+
+#if !defined(HAVE_SYS_TIME_H) || defined(TIME_WITH_SYS_TIME)
+# include <time.h>          /* on some systems time.h should not be
+                               included together with sys/time.h */
+#endif
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+
+#include <signal.h>
+
+#if defined(DIRSIZ) && !defined(MAXNAMLEN)
+# define MAXNAMLEN DIRSIZ
+#endif
+
+#if defined(UFS_MAXNAMLEN) && !defined(MAXNAMLEN)
+# define MAXNAMLEN UFS_MAXNAMLEN    /* for dynix/ptx */
+#endif
+
+#if defined(NAME_MAX) && !defined(MAXNAMLEN)
+# define MAXNAMLEN NAME_MAX         /* for Linux before .99p3 */
+#endif
+
+/*
+ * Note: if MAXNAMLEN has the wrong value, you will get error messages
+ *	 for not being able to open the swap file.
+ */
+#if !defined(MAXNAMLEN)
+# define MAXNAMLEN 512              /* for all other Unix */
+#endif
+
+#define BASENAMELEN     (MAXNAMLEN - 5)
+
+#ifdef HAVE_PWD_H
+# include <pwd.h>
+#endif
+
+#ifdef __COHERENT__
+# undef __ARGS
+#endif
+
+/*
+ * Unix system-dependent file names
+ */
+#ifndef SYS_VIMRC_FILE
+# define SYS_VIMRC_FILE "$VIM/vimrc"
+#endif
+#ifndef SYS_GVIMRC_FILE
+# define SYS_GVIMRC_FILE "$VIM/gvimrc"
+#endif
+#ifndef DFLT_HELPFILE
+# define DFLT_HELPFILE  "$VIMRUNTIME/doc/help.txt"
+#endif
+#ifndef FILETYPE_FILE
+# define FILETYPE_FILE  "filetype.vim"
+#endif
+#ifndef FTPLUGIN_FILE
+# define FTPLUGIN_FILE  "ftplugin.vim"
+#endif
+#ifndef INDENT_FILE
+# define INDENT_FILE    "indent.vim"
+#endif
+#ifndef FTOFF_FILE
+# define FTOFF_FILE     "ftoff.vim"
+#endif
+#ifndef FTPLUGOF_FILE
+# define FTPLUGOF_FILE  "ftplugof.vim"
+#endif
+#ifndef INDOFF_FILE
+# define INDOFF_FILE    "indoff.vim"
+#endif
+#ifndef SYS_MENU_FILE
+# define SYS_MENU_FILE  "$VIMRUNTIME/menu.vim"
+#endif
+
+#ifndef USR_EXRC_FILE
+#  define USR_EXRC_FILE "$HOME/.exrc"
+#endif
+
+
+#ifndef USR_VIMRC_FILE
+#  define USR_VIMRC_FILE "$HOME/.neovimrc"
+#endif
+
+
+#if !defined(USR_EXRC_FILE2)
+#    define USR_VIMRC_FILE2     "~/.neovim/vimrc"
+#endif
+
+
+#ifndef USR_GVIMRC_FILE
+#  define USR_GVIMRC_FILE "$HOME/.neogvimrc"
+#endif
+
+#ifndef USR_GVIMRC_FILE2
+#   define USR_GVIMRC_FILE2     "~/.neovim/gvimrc"
+#endif
+
+
+#ifndef EVIM_FILE
+# define EVIM_FILE      "$VIMRUNTIME/evim.vim"
+#endif
+
+# ifndef VIMINFO_FILE
+#   define VIMINFO_FILE "$HOME/.neoviminfo"
+# endif
+
+#ifndef EXRC_FILE
+# define EXRC_FILE      ".exrc"
+#endif
+
+#ifndef VIMRC_FILE
+# define VIMRC_FILE     ".neovimrc"
+#endif
+
+
+#ifndef SYNTAX_FNAME
+# define SYNTAX_FNAME   "$VIMRUNTIME/syntax/%s.vim"
+#endif
+
+#ifndef DFLT_BDIR
+#   define DFLT_BDIR    ".,~/tmp,~/"    /* default for 'backupdir' */
+#endif
+
+#ifndef DFLT_DIR
+#   define DFLT_DIR     ".,~/tmp,/var/tmp,/tmp" /* default for 'directory' */
+#endif
+
+#ifndef DFLT_VDIR
+#   define DFLT_VDIR    "$HOME/.neovim/view"       /* default for 'viewdir' */
+#endif
+
+#define DFLT_ERRORFILE          "errors.err"
+
+#  ifdef RUNTIME_GLOBAL
+#   define DFLT_RUNTIMEPATH     "~/.neovim," RUNTIME_GLOBAL ",$VIMRUNTIME," \
+  RUNTIME_GLOBAL "/after,~/.neovim/after"
+#  else
+#   define DFLT_RUNTIMEPATH \
+  "~/.neovim,$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after,~/.neovim/after"
+#  endif
+
+#  define TEMPDIRNAMES  "$TMPDIR", "/tmp", ".", "$HOME"
+#  define TEMPNAMELEN    256
+
+/* Special wildcards that need to be handled by the shell */
+#define SPECIAL_WILDCHAR    "`'{"
+
+#ifndef HAVE_OPENDIR
+# define NO_EXPANDPATH
+#endif
+
+/*
+ * Unix has plenty of memory, use large buffers
+ */
+#define CMDBUFFSIZE 1024        /* size of the command processing buffer */
+
+/* Use the system path length if it makes sense. */
+#if defined(PATH_MAX) && (PATH_MAX > 1000)
+# define MAXPATHL       PATH_MAX
+#else
+# define MAXPATHL       1024
+#endif
+
+#define CHECK_INODE             /* used when checking if a swap file already
+                                    exists for a file */
+# ifndef DFLT_MAXMEM
+#  define DFLT_MAXMEM   (5*1024)         /* use up to 5 Mbyte for a buffer */
+# endif
+# ifndef DFLT_MAXMEMTOT
+#  define DFLT_MAXMEMTOT        (10*1024)    /* use up to 10 Mbyte for Vim */
+# endif
+
+/* memmove is not present on all systems, use memmove, bcopy, memcpy or our
+ * own version */
+/* Some systems have (void *) arguments, some (char *). If we use (char *) it
+ * works for all */
+#ifdef USEMEMMOVE
+# define mch_memmove(to, from, len) memmove((char *)(to), (char *)(from), len)
+#else
+# ifdef USEBCOPY
+#  define mch_memmove(to, from, len) bcopy((char *)(from), (char *)(to), len)
+# else
+#  ifdef USEMEMCPY
+#   define mch_memmove(to, from, len) memcpy((char *)(to), (char *)(from), len)
+#  else
+#   define VIM_MEMMOVE      /* found in misc2.c */
+#  endif
+# endif
+#endif
+
+# ifdef HAVE_RENAME
+#  define mch_rename(src, dst) rename(src, dst)
+# else
+int mch_rename __ARGS((const char *src, const char *dest));
+# endif
+#  ifdef __MVS__
+/* on OS390 Unix getenv() doesn't return a pointer to persistent
+ * storage -> use __getenv() */
+#   define mch_getenv(x) (char_u *)__getenv((char *)(x))
+#  else
+#   define mch_getenv(x) (char_u *)getenv((char *)(x))
+#  endif
+#  define mch_setenv(name, val, x) setenv(name, val, x)
+
+#if !defined(S_ISDIR) && defined(S_IFDIR)
+# define        S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+#endif
+#if !defined(S_ISREG) && defined(S_IFREG)
+# define        S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+#if !defined(S_ISBLK) && defined(S_IFBLK)
+# define        S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
+#endif
+#if !defined(S_ISSOCK) && defined(S_IFSOCK)
+# define        S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
+#endif
+#if !defined(S_ISFIFO) && defined(S_IFIFO)
+# define        S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
+#endif
+#if !defined(S_ISCHR) && defined(S_IFCHR)
+# define        S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
+#endif
+
+/* Note: Some systems need both string.h and strings.h (Savage).  However,
+ * some systems can't handle both, only use string.h in that case. */
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
+#if defined(HAVE_STRINGS_H) && !defined(NO_STRINGS_WITH_STRING_H)
+# include <strings.h>
+#endif
+
+#if defined(HAVE_SETJMP_H)
+# include <setjmp.h>
+# ifdef HAVE_SIGSETJMP
+#  define JMP_BUF sigjmp_buf
+#  define SETJMP(x) sigsetjmp((x), 1)
+#  define LONGJMP siglongjmp
+# else
+#  define JMP_BUF jmp_buf
+#  define SETJMP(x) setjmp(x)
+#  define LONGJMP longjmp
+# endif
+#endif
+
+#define HAVE_DUP                /* have dup() */
+#define HAVE_ST_MODE            /* have stat.st_mode */
+
+/* We have three kinds of ACL support. */
+#define HAVE_ACL (HAVE_POSIX_ACL || HAVE_SOLARIS_ACL || HAVE_AIX_ACL)