Update Gnulib to v0.0-6827-g39c3009; use the `dirfd' module.

[bpt/guile.git] / m4 / locale_h.m4

diff --git a/m4/locale_h.m4 b/m4/locale_h.m4
index 35b8b32..4289587 100644 (file)
--- a/m4/locale_h.m4
+++ b/m4/locale_h.m4
@@ -1,5 +1,5 @@
-# locale_h.m4 serial 5
-dnl Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+# locale_h.m4 serial 14
+dnl Copyright (C) 2007, 2009-2012 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.
@@ -18,8 +18,11 @@ AC_DEFUN([gl_LOCALE_H],
 
   AC_CACHE_CHECK([whether locale.h conforms to POSIX:2001],
     [gl_cv_header_locale_h_posix2001],
-    [AC_TRY_COMPILE([#include <locale.h>
-int x = LC_MESSAGES;], [],
+    [AC_COMPILE_IFELSE(
+       [AC_LANG_PROGRAM(
+          [[#include <locale.h>
+            int x = LC_MESSAGES;]],
+          [[]])],
        [gl_cv_header_locale_h_posix2001=yes],
        [gl_cv_header_locale_h_posix2001=no])])
 
@@ -32,8 +35,11 @@ int x = LC_MESSAGES;], [],
     dnl itself, we assume that <xlocale.h> will do so.
     AC_CACHE_CHECK([whether locale.h defines locale_t],
       [gl_cv_header_locale_has_locale_t],
-      [AC_TRY_COMPILE([#include <locale.h>
-locale_t x;], [],
+      [AC_COMPILE_IFELSE(
+         [AC_LANG_PROGRAM(
+            [[#include <locale.h>
+              locale_t x;]],
+            [[]])],
          [gl_cv_header_locale_has_locale_t=yes],
          [gl_cv_header_locale_has_locale_t=no])
       ])
@@ -48,35 +54,35 @@ locale_t x;], [],
   fi
   AC_SUBST([HAVE_XLOCALE_H])
 
-  dnl Execute this unconditionally, because LOCALE_H may be set by other
-  dnl modules, after this code is executed.
-  gl_CHECK_NEXT_HEADERS([locale.h])
+  dnl <locale.h> is always overridden, because of GNULIB_POSIXCHECK.
+  gl_NEXT_HEADERS([locale.h])
 
-  if test -n "$STDDEF_H" \
-     || test $gl_cv_header_locale_h_posix2001 = no \
-     || test $gl_cv_header_locale_h_needs_xlocale_h = yes; then
-    gl_REPLACE_LOCALE_H
-  fi
-])
-
-dnl Unconditionally enables the replacement of <locale.h>.
-AC_DEFUN([gl_REPLACE_LOCALE_H],
-[
-  AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
-  LOCALE_H=locale.h
+  dnl Check for declarations of anything we want to poison if the
+  dnl corresponding gnulib module is not in use.
+  gl_WARN_ON_USE_PREPARE([[#include <locale.h>
+/* Some systems provide declarations in a non-standard header.  */
+#if HAVE_XLOCALE_H
+# include <xlocale.h>
+#endif
+    ]],
+    [setlocale duplocale])
 ])
 
 AC_DEFUN([gl_LOCALE_MODULE_INDICATOR],
 [
   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
   AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
-  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+  dnl Define it also as a C macro, for the benefit of the unit tests.
+  gl_MODULE_INDICATOR_FOR_TESTS([$1])
 ])
 
 AC_DEFUN([gl_LOCALE_H_DEFAULTS],
 [
+  GNULIB_SETLOCALE=0;  AC_SUBST([GNULIB_SETLOCALE])
   GNULIB_DUPLOCALE=0;  AC_SUBST([GNULIB_DUPLOCALE])
   dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_DUPLOCALE=1;    AC_SUBST([HAVE_DUPLOCALE])
+  REPLACE_SETLOCALE=0; AC_SUBST([REPLACE_SETLOCALE])
   REPLACE_DUPLOCALE=0; AC_SUBST([REPLACE_DUPLOCALE])
-  LOCALE_H='';         AC_SUBST([LOCALE_H])
 ])