Optimize file reading where possible.

diff --git a/m4/ChangeLog b/m4/ChangeLog
index 625c328..35e0441 100644 (file)
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,8 @@
+2006-01-10  Bruno Haible  <bruno@clisp.org>
+
+       * localcharset.m4 (gl_LOCALCHARSET): Also test for getc_unlocked.
+       Reported by Werner Lemberg <wl@gnu.org>.
+
 2006-01-09  Paul Eggert  <eggert@cs.ucla.edu>
 
        Sync from coreutils.

diff --git a/m4/localcharset.m4 b/m4/localcharset.m4
index c92e1bb..6863d32 100644 (file)
--- a/m4/localcharset.m4
+++ b/m4/localcharset.m4
@@ -1,5 +1,5 @@
-# localcharset.m4 serial 2
-dnl Copyright (C) 2002 Free Software Foundation, Inc.
+# localcharset.m4 serial 3
+dnl Copyright (C) 2002, 2004, 2006 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.
@@ -9,6 +9,7 @@ AC_DEFUN([gl_LOCALCHARSET],
   dnl Prerequisites of lib/localcharset.c.
   AC_CHECK_HEADERS_ONCE(stddef.h stdlib.h string.h)
   AC_REQUIRE([AM_LANGINFO_CODESET])
+  AC_CHECK_DECLS_ONCE(getc_unlocked)
   AC_CHECK_FUNCS_ONCE(setlocale)
 
   dnl Prerequisites of the lib/Makefile.am snippet.