*** empty log message ***

diff --git a/m4/fpending.m4 b/m4/fpending.m4
new file mode 100644 (file)
index 0000000..dab0803
--- /dev/null
+++ b/m4/fpending.m4
@@ -0,0 +1,70 @@
+#serial 1
+
+dnl From Jim Meyering
+dnl Using code from emacs, based on suggestions from Paul Eggert
+dnl and Ulrich Drepper.
+
+AC_DEFUN(jm_FUNC_FPENDING,
+[
+  AC_CHECK_HEADERS(stdio_ext.h)
+  AC_FEPLACE_FUNCS([__fpending])
+  if test $ac_cv_func___fpending = no; then
+    AC_REPLACE_FUNCS(__fpending)
+    AC_CACHE_CHECK(
+             [how to determine the number of pending output bytes on a stream],
+                  ac_cv_sys_pending_output_n_bytes,
+      [
+        fp_save_DEFS=$DEFS
+       for ac_expr in                                          \
+                                                               \
+         '# glibc2'                                            \
+         'fp->_IO_write_ptr - fp->_IO_write_base'              \
+                                                               \
+         '# traditional Unix'                                  \
+         'fp->_ptr - fp->_base'                                \
+                                                               \
+         '# BSD'                                               \
+         'fp->_p - fp->_bf._base'                              \
+                                                               \
+         '# SCO, Unixware'                                     \
+         'fp->__ptr - fp->__base'                              \
+                                                               \
+         '# old glibc?'                                        \
+         'fp->__bufp - fp->__buffer'                           \
+                                                               \
+         '# old glibc iostream?'                               \
+         'fp->_pptr - fp->_pbase'                              \
+                                                               \
+         '# VMS'                                               \
+         '(*fp)->_ptr - (*fp)->_base'                          \
+                                                               \
+         '# e.g., DGUX R4.11; the info is not available'       \
+         1                                                     \
+         ; do
+           # Skip each embedded comment.
+           case "$ac_expr" in '#'*) continue;; esac
+'
+
+           DEFS="$DEFS -DPENDING_OUTPUT_N_BYTES=$ac_expr"
+           AC_TRY_COMPILE(
+             [#include <stdio.h>
+             ],
+             [long unsigned int n = $ac_expr;],
+             fp_done=yes
+            )
+           DEFS=$fp_save_DEFS
+           test "$fp_done" = yes && break
+       done
+       AC_DEFINE_UNQUOTED(PENDING_OUTPUT_N_BYTES, $ac_expr,
+         [the number of pending output bytes on stream `fp'])
+      ])
+  fi
+
+
+
+
+  if test $fu_cv_sys_struct_timespec = yes; then
+    AC_DEFINE_UNQUOTED(HAVE_STRUCT_TIMESPEC, 1,
+                      [Define if struct timespec is declared in <time.h>. ])
+  fi
+])