Simplify by assuming __fpending.

Now that Emacs is using the gnulib fpending module,
there's no need for Emacs to have a separate implementation.
* configure.ac (stdio_ext.h, __fpending): Remove now-duplicate checks.
(PENDING_OUTPUT_COUNT, DISPNEW_NEEDS_STDIO_EXT): Remove.
* admin/CPP-DEFINES (PENDING_OUTPUT_COUNT): Remove.
* src/dispnew.c: Include <fpending.h>, not <stdio_ext.h>.
(update_frame_1): Use __fpending, not PENDING_OUTPUT_COUNT.
Do not assume that __fpending's result fits in int.

2 files changed, 5 insertions, 1 deletions

diff --git a/admin/CPP-DEFINES b/admin/CPP-DEFINES
index 661cde9c43e..fb217fc22e6 100644
--- a/admin/CPP-DEFINES
+++ b/admin/CPP-DEFINES
@@ -425,7 +425,6 @@ ORDINARY_LINK
 O_RDONLY
 O_RDWR
 PAGESIZE
-PENDING_OUTPUT_COUNT
 PREFER_VSUSP
 PTY_ITERATION
 PTY_NAME_SPRINTF
diff --git a/admin/ChangeLog b/admin/ChangeLog
index ccb54a0a9ed..c48faadab16 100644
--- a/admin/ChangeLog
+++ b/admin/ChangeLog
@@ -1,3 +1,8 @@
+2012-11-05  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Simplify by assuming __fpending.
+        * CPP-DEFINES (PENDING_OUTPUT_COUNT): Remove.
+
 2012-11-03  Glenn Morris  <rgm@gnu.org>
 
         * admin.el (set-copyright): Add msdos/sed2v2.inp.