* lib/xalloc.h (XMALLOC, XNMALLOC, XZALLOC, XCALLOC): Move

[gnulib.git] / m4 / readutmp.m4

diff --git a/m4/readutmp.m4 b/m4/readutmp.m4
index dd9ae9e..33ed4e8 100644 (file)
--- a/m4/readutmp.m4
+++ b/m4/readutmp.m4
@@ -1,20 +1,27 @@
-# readutmp.m4 serial 6
-dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+# readutmp.m4 serial 12
+dnl Copyright (C) 2002, 2003, 2004, 2005, 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.
 
 AC_DEFUN([gl_READUTMP],
 [
-  dnl Prerequisites of lib/readutmp.h.
-  AC_CHECK_HEADERS(utmp.h utmpx.h)
-  AC_CHECK_FUNCS(utmpname utmpxname)
-  AC_CHECK_DECLS(getutent,,,[
+  dnl Persuade utmpx.h to declare utmpxname
+  AC_REQUIRE([AC_GNU_SOURCE])
+
+  AC_CHECK_HEADERS_ONCE(utmp.h utmpx.h)
+  if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then
+    AC_LIBOBJ([readutmp])
+
+    dnl Prerequisites of lib/readutmp.h and lib/readutmp.c.
+    AC_REQUIRE([AC_C_INLINE])
+    AC_REQUIRE([gl_FUNC_FREE])
+    AC_CHECK_FUNCS_ONCE(utmpname utmpxname)
+    AC_CHECK_DECLS(getutent,,,[
 #ifdef HAVE_UTMP_H
 # include <utmp.h>
 #endif
 ])
-  if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then
     utmp_includes="\
 $ac_includes_default
 #ifdef HAVE_UTMPX_H
@@ -46,14 +53,5 @@ $ac_includes_default
     AC_CHECK_MEMBERS([struct utmp.ut_exit.ut_termination],,,[$utmp_includes])
     AC_CHECK_MEMBERS([struct utmpx.ut_exit.e_termination],,,[$utmp_includes])
     AC_CHECK_MEMBERS([struct utmp.ut_exit.e_termination],,,[$utmp_includes])
-
-    AC_LIBOBJ(readutmp)
-    gl_PREREQ_READUTMP
   fi
 ])
-
-# Prerequisites of lib/readutmp.c.
-AC_DEFUN([gl_PREREQ_READUTMP],
-[
-  AC_REQUIRE([gl_FUNC_FREE])
-])