fsync: new module

[gnulib.git] / m4 / vasnprintf.m4

diff --git a/m4/vasnprintf.m4 b/m4/vasnprintf.m4
index ef39db6..536258c 100644 (file)
--- a/m4/vasnprintf.m4
+++ b/m4/vasnprintf.m4
@@ -1,12 +1,11 @@
-# vasnprintf.m4 serial 22
-dnl Copyright (C) 2002-2004, 2006-2007 Free Software Foundation, Inc.
+# vasnprintf.m4 serial 25
+dnl Copyright (C) 2002-2004, 2006-2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_VASNPRINTF],
 [
-  AC_REQUIRE([gl_EOVERFLOW])
   AC_CHECK_FUNCS_ONCE([vasnprintf])
   if test $ac_cv_func_vasnprintf = no; then
     gl_REPLACE_VASNPRINTF
@@ -45,7 +44,10 @@ AC_DEFUN([gl_PREREQ_PRINTF_PARSE],
   AC_REQUIRE([gt_TYPE_WCHAR_T])
   AC_REQUIRE([gt_TYPE_WINT_T])
   AC_REQUIRE([AC_TYPE_SIZE_T])
-  AC_CHECK_TYPES(ptrdiff_t)
+  AC_CHECK_TYPE([ptrdiff_t], ,
+    [AC_DEFINE([ptrdiff_t], [long],
+       [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
+    ])
   AC_REQUIRE([gt_AC_TYPE_INTMAX_T])
 ])
 
@@ -163,6 +165,21 @@ AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_GROUPING],
   esac
 ])
 
+# Extra prerequisites of lib/vasnprintf.c for supporting the '-' flag.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST],
+[
+  AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
+  case "$gl_cv_func_printf_flag_leftadjust" in
+    *yes)
+      ;;
+    *)
+      AC_DEFINE([NEED_PRINTF_FLAG_LEFTADJUST], 1,
+        [Define if the vasnprintf implementation needs special code for the
+         '-' flag.])
+      ;;
+  esac
+])
+
 # Extra prerequisites of lib/vasnprintf.c for supporting the 0 flag.
 AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO],
 [
@@ -231,6 +248,7 @@ AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_EXTRAS],
   gl_PREREQ_VASNPRINTF_DIRECTIVE_A
   gl_PREREQ_VASNPRINTF_DIRECTIVE_F
   gl_PREREQ_VASNPRINTF_FLAG_GROUPING
+  gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
   gl_PREREQ_VASNPRINTF_FLAG_ZERO
   gl_PREREQ_VASNPRINTF_PRECISION
   gl_PREREQ_VASNPRINTF_ENOMEM