Prefer nl_langinfo over localeconv.

[gnulib.git] / m4 / vasnprintf.m4

diff --git a/m4/vasnprintf.m4 b/m4/vasnprintf.m4
index 2cbee3a..a225c1c 100644 (file)
--- a/m4/vasnprintf.m4
+++ b/m4/vasnprintf.m4
@@ -1,30 +1,39 @@
-# vasnprintf.m4 serial 2
-dnl Copyright (C) 2002-2003 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# vasnprintf.m4 serial 10
+dnl Copyright (C) 2002-2004, 2006-2007 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_REPLACE_FUNCS(vasnprintf)
+  AC_REQUIRE([gl_EOVERFLOW])
+  AC_CHECK_FUNCS_ONCE([vasnprintf])
   if test $ac_cv_func_vasnprintf = no; then
-    AC_LIBOBJ(printf-args)
-    AC_LIBOBJ(printf-parse)
-    AC_LIBOBJ(asnprintf)
-    gl_PREREQ_PRINTF_ARGS
-    gl_PREREQ_PRINTF_PARSE
-    gl_PREREQ_VASNPRINTF
-    gl_PREREQ_ASNPRINTF
+    gl_REPLACE_VASNPRINTF
   fi
 ])
 
+AC_DEFUN([gl_REPLACE_VASNPRINTF],
+[
+  AC_CHECK_FUNCS_ONCE([vasnprintf])
+  AC_LIBOBJ([vasnprintf])
+  AC_LIBOBJ([printf-args])
+  AC_LIBOBJ([printf-parse])
+  AC_LIBOBJ([asnprintf])
+  if test $ac_cv_func_vasnprintf = yes; then
+    AC_DEFINE([REPLACE_VASNPRINTF], 1,
+      [Define if vasnprintf exists but is overridden by gnulib.])
+  fi
+  gl_PREREQ_PRINTF_ARGS
+  gl_PREREQ_PRINTF_PARSE
+  gl_PREREQ_VASNPRINTF
+  gl_PREREQ_ASNPRINTF
+])
+
 # Prequisites of lib/printf-args.h, lib/printf-args.c.
 AC_DEFUN([gl_PREREQ_PRINTF_ARGS],
 [
-  AC_REQUIRE([bh_C_SIGNED])
-  AC_REQUIRE([jm_AC_TYPE_LONG_LONG])
+  AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
   AC_REQUIRE([gt_TYPE_LONGDOUBLE])
   AC_REQUIRE([gt_TYPE_WCHAR_T])
   AC_REQUIRE([gt_TYPE_WINT_T])
@@ -33,7 +42,7 @@ AC_DEFUN([gl_PREREQ_PRINTF_ARGS],
 # Prequisites of lib/printf-parse.h, lib/printf-parse.c.
 AC_DEFUN([gl_PREREQ_PRINTF_PARSE],
 [
-  AC_REQUIRE([jm_AC_TYPE_LONG_LONG])
+  AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
   AC_REQUIRE([gt_TYPE_LONGDOUBLE])
   AC_REQUIRE([gt_TYPE_WCHAR_T])
   AC_REQUIRE([gt_TYPE_WINT_T])
@@ -46,13 +55,25 @@ AC_DEFUN([gl_PREREQ_PRINTF_PARSE],
 AC_DEFUN([gl_PREREQ_VASNPRINTF],
 [
   AC_REQUIRE([AC_FUNC_ALLOCA])
-  AC_REQUIRE([jm_AC_TYPE_LONG_LONG])
+  AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
   AC_REQUIRE([gt_TYPE_LONGDOUBLE])
   AC_REQUIRE([gt_TYPE_WCHAR_T])
   AC_REQUIRE([gt_TYPE_WINT_T])
   AC_CHECK_FUNCS(snprintf wcslen)
 ])
 
+# Extra prerequisites of lib/vasnprintf.c for supporting the 'a' directive.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_A],
+[
+  AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
+  if ! expr "$gl_cv_func_printf_directive_a" : ".*yes" > /dev/null; then
+    AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], 1,
+      [Define if the vasnprintf implementation needs special code for
+       the 'a' and 'A' directives.])
+    AC_CHECK_FUNCS([nl_langinfo])
+  fi
+])
+
 # Prerequisites of lib/asnprintf.c.
 AC_DEFUN([gl_PREREQ_ASNPRINTF],
 [