Fix the MSDOS build.

 src/unexcoff.c [MSDOS]: Include libc/atexit.h.
 (copy_text_and_data): Zero out the atexit chain pointer before
 dumping Emacs.
 src/termhooks.h (encode_terminal_code): Update prototype.
 src/term.c (encode_terminal_code) [DOS_NT]: Make it externally
 visible for all DOS_NT ports, not just WINDOWSNT.
 (syms_of_term) [!MSDOS]: Don't define 'tty-menu-*' symbols on MSDOS.
 src/sysdep.c (emacs_sigaction_init, init_signals): Don't use SIGCHLD
 unless it is defined.
 (emacs_pipe) [MSDOS]: Redirect to 'pipe'.
 src/process.c (close_on_exec, accept4, process_socket): Move into
 the "ifdef subprocesses" part.
 (catch_child_signal): Condition by "ifdef subprocesses".
 (syms_of_process) <Qinternal_default_process_sentinel>
 <Qinternal_default_process_filter>: Condition by "ifdef subprocesses".
 src/msdos.h: Add prototypes for new functions.
 (EINPROGRESS): Define.
 (O_CLOEXEC): Define to zero.
 src/msdos.c (check_window_system): Remove unnecessary an
 incompatible duplicate function.
 (sys_opendir, readlinkat, faccessat, fstatat, unsetenv): New
 functions in support of new functionality.
 src/menu.c (single_menu_item): Add visual indication  of submenu
 also for menus on MSDOS frames.
 (Fx_popup_menu) [!MSDOS]: Do not call tty_menu_show on MSDOS.
 src/lisp.h (CHECK_PROCESS) [!subprocesses]: Do not define
 when async subprocesses aren't supported.
 src/font.h (FONT_WIDTH) [MSDOS]: MSDOS-specific definition.
 src/emacs.c (close_output_streams): Zero out errno before calling
 close_stream.
 src/dired.c [MSDOS]: Include msdos.h.
 src/conf_post.h (opendir) [MSDOS]: Redirect to sys_opendir.
 (DATA_START) [MSDOS]: Define.
 (SYSTEM_PURESIZE_EXTRA) [MSDOS]: Enlarge by 25K.
 src/callproc.c (block_child_signal, unblock_child_signal) [MSDOS]:
 Ifdef away for MSDOS.
 (record_kill_process) [MSDOS]: Ifdef away the entire body for MSDOS.
 (call_process_cleanup) [MSDOS]: Ifdef away portions not relevant
 for MSDOS.
 (call_process) [MSDOS]: Fix call sequence of dostounix_filename.
 Use temporary file template that is compatible with mkostemp.
 Move vfork-related portions under #ifndef MSDOS.
 (syms_of_callproc): Unify templates of MSDOS and WINDOWSNT.

 lisp/term/pc-win.el (x-list-fonts, x-get-selection-value): Provide
 doc strings, as required by snarf-documentation.

 msdos/sedlisp.inp:
 msdos/sedlibmk.inp:
 msdos/sedleim.inp:
 msdos/sed3v2.inp:
 msdos/sed2v2.inp:
 msdos/sed1v2.inp: Update Sed scripts for Emacs 24.4.
 msdos/inttypes.h: Add PRIdMAX.
 msdos/INSTALL: Update for Emacs 24.4.
 msdos/sedadmin.inp: New file.

1 files changed, 16 insertions, 1 deletions

diff --git a/src/msdos.h b/src/msdos.h
index 5d5f5df091f..e863c7cea4e 100644
--- a/src/msdos.h
+++ b/src/msdos.h
@@ -41,9 +41,25 @@ void mouse_on (void);
 void mouse_off (void);
 void mouse_moveto (int, int);
 
+#include <sys/types.h>
+#include <sys/stat.h>
+
 #if __DJGPP__ == 2 && __DJGPP_MINOR__ < 4
 int readlink (const char *, char *, size_t);
 #endif
+ssize_t readlinkat (int, const char *, char *, size_t);
+int fstatat (int, char const *, struct stat *, int);
+int unsetenv (const char *);
+
+/* Constants.  */
+#define EINPROGRESS 112
+/* Gnulib sets O_CLOEXEC to O_NOINHERIT, which gets in the way when we
+   need to redirect standard handles for subprocesses using temporary
+   files created by mkostemp, see callproc.c.  */
+#ifdef O_CLOEXEC
+# undef O_CLOEXEC
+#endif
+#define O_CLOEXEC 0
 
 
 #ifndef HAVE_X_WINDOWS
@@ -83,7 +99,6 @@ extern void x_set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
 #define XMenuSetAEQ (void)
 #define XMenuSetFreeze (void)
 #define XMenuRecompute (void)
-#define FONT_WIDTH(foo) 1
 #define XM_FAILURE -1
 #define XM_SUCCESS 1
 #define XM_NO_SELECT 2