(rpl_calloc): Defend against buggy calloc implementations

[gnulib.git] / m4 / fpending.m4

diff --git a/m4/fpending.m4 b/m4/fpending.m4
index a6e4338..d086ac6 100644 (file)
--- a/m4/fpending.m4
+++ b/m4/fpending.m4
@@ -1,4 +1,4 @@
-#serial 1
+#serial 4
 
 dnl From Jim Meyering
 dnl Using code from emacs, based on suggestions from Paul Eggert
@@ -8,7 +8,7 @@ dnl Find out how to determine the number of pending output bytes on a stream.
 dnl glibc (2.1.93 and newer) and Solaris provide __fpending.  On other systems,
 dnl we have to grub around in the FILE struct.
 
-AC_DEFUN(jm_FUNC_FPENDING,
+AC_DEFUN([gl_FUNC_FPENDING],
 [
   AC_CHECK_HEADERS(stdio_ext.h)
   AC_REPLACE_FUNCS([__fpending])
@@ -23,7 +23,6 @@ AC_DEFUN(jm_FUNC_FPENDING,
              [how to determine the number of pending output bytes on a stream],
                   ac_cv_sys_pending_output_n_bytes,
       [
-        fp_save_DEFS=$DEFS
        for ac_expr in                                          \
                                                                \
            '# glibc2'                                          \
@@ -54,14 +53,12 @@ AC_DEFUN(jm_FUNC_FPENDING,
          # Skip each embedded comment.
          case "$ac_expr" in '#'*) continue;; esac
 
-         DEFS="$DEFS -DPENDING_OUTPUT_N_BYTES=$ac_expr"
          AC_TRY_COMPILE(
            [#include <stdio.h>
            ],
            [FILE *fp = stdin; (void) ($ac_expr);],
            fp_done=yes
          )
-         DEFS=$fp_save_DEFS
          test "$fp_done" = yes && break
        done