Assume POSIX 1003.1-1988 or later for unistd.h.

* admin/CPP-DEFINES (BROKEN_GETWD, HAVE_GETCWD, HAVE_GETWD, HAVE_SIZE_T)
(HAVE_UNISTD_H): Remove.
* configure.ac: Do not check for getcwd or getwd.
* lib-src/emacsclient.c (getcwd): Remove decl.
(get_current_dir_name): Assume getcwd exists.
* lib-src/etags.c (HAVE_GETCWD): Remove.
(getcwd): Remove decl.
(NO_LONG_OPTIONS): Remove this.  All uses removed.
Emacs always has GNU getopt.
(etags_getcwd): Assume getcwd exists.
* lib-src/movemail.c (F_OK, X_OK, W_OK, R_OK): Remove.
* nt/config.nt (HAVE_GETCWD): Remove.
* src/alloc.c: Assume unistd.h exists.
* src/fileio.c (Fexpand_file_name) [DOS_NT]: Use getcwd, not getwd.
* src/sysdep.c (get_current_dir_name): Assume getcwd exists.
(getwd) [USG]: Remove; no longer needed.
(sys_subshell) [DOS_NT]: Use getcwd, not getwd.
* src/w32.c (getcwd): Rename from getwd, and switch to getcwd's API.
* src/w32.h (getcwd): Remove decl.

Fixes: debbugs:12945

1 files changed, 11 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index b1a76bfdae0..9e9ae468044 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,14 @@
+2012-11-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Assume POSIX 1003.1-1988 or later for unistd.h (Bug#12945).
+        * alloc.c: Assume unistd.h exists.
+        * fileio.c (Fexpand_file_name) [DOS_NT]: Use getcwd, not getwd.
+        * sysdep.c (get_current_dir_name): Assume getcwd exists.
+        (getwd) [USG]: Remove; no longer needed.
+        (sys_subshell) [DOS_NT]: Use getcwd, not getwd.
+        * w32.c (getcwd): Rename from getwd, and switch to getcwd's API.
+        * w32.h (getcwd): Remove decl.
+
 2012-11-21  Stefan Monnier  <monnier@iro.umontreal.ca>
 
         * xdisp.c (fast_set_selected_frame): Rename from update_tool_bar_unwind.