* fsusage.m4 (gl_STATFS_TRUNCATES): Avoid unused variable.

* getdate.m4 (gl_C_COMPOUND_LITERALS): Likewise.
* jm-winsz1.m4 (gl_HEADER_TIOCGWINSZ_IN_TERMIOS_H): Likewise;
also add missing comma that caused broken test.
* link-follow.m4 (gl_AC_FUNC_LINK_FOLLOWS_SYMLINK): Include
stdlib.h, for `abort'.
* ls-mntd-fs.m4 (gl_LIST_MOUNTED_FILE_SYSTEMS): Avoid unused
variables.
* mkdir-slash.m4 (gl_FUNC_MKDIR_TRAILING_SLASH): Check for and
include unistd.h if present, for `rmdir'.
* physmem.m4 (gl_SYS__SYSTEM_CONFIGURATION): Avoid unused
variables.
* putenv.m4 (gl_FUNC_PUTENV): Rewrite using AC_RUN_IFELSE, and
in the process include standard headers for prototypes.
* readutmp.m4 (gl_READUTMP): Require AC_GNU_SOURCE, so utmpxname
gets declared on GNU/Linux.
* rmdir-errno.m4 (gl_FUNC_RMDIR_NOTEMPTY): Check for and include
unistd.h, for `rmdir'.
* time_r.m4 (gl_TIME_R): Avoid unused variables.

diff --git a/m4/ChangeLog b/m4/ChangeLog
index dc60ca7..84f6101 100644 (file)
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,5 +1,25 @@
 2006-09-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
+       * fsusage.m4 (gl_STATFS_TRUNCATES): Avoid unused variable.
+       * getdate.m4 (gl_C_COMPOUND_LITERALS): Likewise.
+       * jm-winsz1.m4 (gl_HEADER_TIOCGWINSZ_IN_TERMIOS_H): Likewise;
+       also add missing comma that caused broken test.
+       * link-follow.m4 (gl_AC_FUNC_LINK_FOLLOWS_SYMLINK): Include
+       stdlib.h, for `abort'.
+       * ls-mntd-fs.m4 (gl_LIST_MOUNTED_FILE_SYSTEMS): Avoid unused
+       variables.
+       * mkdir-slash.m4 (gl_FUNC_MKDIR_TRAILING_SLASH): Check for and
+       include unistd.h if present, for `rmdir'.
+       * physmem.m4 (gl_SYS__SYSTEM_CONFIGURATION): Avoid unused
+       variables.
+       * putenv.m4 (gl_FUNC_PUTENV): Rewrite using AC_RUN_IFELSE, and
+       in the process include standard headers for prototypes.
+       * readutmp.m4 (gl_READUTMP): Require AC_GNU_SOURCE, so utmpxname
+       gets declared on GNU/Linux.
+       * rmdir-errno.m4 (gl_FUNC_RMDIR_NOTEMPTY): Check for and include
+       unistd.h, for `rmdir'.
+       * time_r.m4 (gl_TIME_R): Avoid unused variables.
+
        * fnmatch.m4 (_AC_FUNC_FNMATCH_IF): Avoid expression that is
        always true.
        * strndup.m4 (gl_FUNC_STRNDUP): include stdlib.h, for `free'.

diff --git a/m4/fsusage.m4 b/m4/fsusage.m4
index 0dfd2dd..08bf06c 100644 (file)
--- a/m4/fsusage.m4
+++ b/m4/fsusage.m4
@@ -1,4 +1,4 @@
-#serial 21
+#serial 22
 # Obtaining file system usage information.
 
 # Copyright (C) 1997, 1998, 2000, 2001, 2003, 2004, 2005, 2006 Free Software
@@ -242,7 +242,8 @@ choke -- this is a workaround for a Sun-specific problem
 #endif
 #include <sys/types.h>
 #include <sys/vfs.h>]],
-    [[struct statfs t; long c = *(t.f_spare);]])],
+    [[struct statfs t; long c = *(t.f_spare);
+      if (c) return 0;]])],
     [fu_cv_sys_truncating_statfs=yes],
     [fu_cv_sys_truncating_statfs=no])])
   if test $fu_cv_sys_truncating_statfs = yes; then

diff --git a/m4/getdate.m4 b/m4/getdate.m4
index febcfac..d160329 100644 (file)
--- a/m4/getdate.m4
+++ b/m4/getdate.m4
@@ -1,4 +1,4 @@
-# getdate.m4 serial 11
+# getdate.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,
@@ -8,7 +8,8 @@ AC_DEFUN([gl_C_COMPOUND_LITERALS],
 [
   AC_CACHE_CHECK([for compound literals], gl_cv_compound_literals,
   [AC_TRY_COMPILE([struct s { int i, j; }; struct s s = (struct s) { 1, 2 };],
-    [struct s t = (struct s) { 3, 4 };],
+    [struct s t = (struct s) { 3, 4 };
+     if (t.i != 0) return 0;],
     gl_cv_compound_literals=yes,
     gl_cv_compound_literals=no)])
   if test $gl_cv_compound_literals = yes; then

diff --git a/m4/jm-winsz1.m4 b/m4/jm-winsz1.m4
index ce5eca0..52653b7 100644 (file)
--- a/m4/jm-winsz1.m4
+++ b/m4/jm-winsz1.m4
@@ -1,6 +1,6 @@
-#serial 8
+#serial 9
 
-# Copyright (C) 1996, 1999, 2001, 2002, 2004 Free Software Foundation, Inc.
+# Copyright (C) 1996, 1999, 2001, 2002, 2004, 2006 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -30,13 +30,15 @@ AC_DEFUN([gl_WINSIZE_IN_PTEM],
      jm_cv_sys_struct_winsize_needs_sys_ptem_h,
      [jm_cv_sys_struct_winsize_needs_sys_ptem_h=yes
       if test $ac_cv_sys_posix_termios = yes; then
-       AC_TRY_COMPILE([#include <termios.h>]
-         [struct winsize x;],
+       AC_TRY_COMPILE([#include <termios.h>],
+         [struct winsize x;
+          if (sizeof x > 0) return 0;],
           [jm_cv_sys_struct_winsize_needs_sys_ptem_h=no])
       fi
       if test $jm_cv_sys_struct_winsize_needs_sys_ptem_h = yes; then
        AC_TRY_COMPILE([#include <sys/ptem.h>],
-         [struct winsize x;],
+         [struct winsize x;
+          if (sizeof x > 0) return 0;],
          [], [jm_cv_sys_struct_winsize_needs_sys_ptem_h=no])
       fi])
    if test $jm_cv_sys_struct_winsize_needs_sys_ptem_h = yes; then

diff --git a/m4/link-follow.m4 b/m4/link-follow.m4
index f75062c..69a7018 100644 (file)
--- a/m4/link-follow.m4
+++ b/m4/link-follow.m4
@@ -1,4 +1,4 @@
-#serial 8
+#serial 9
 dnl Run a program to determine whether link(2) follows symlinks.
 dnl Set LINK_FOLLOWS_SYMLINKS accordingly.
 
@@ -20,6 +20,7 @@ AC_DEFUN([gl_AC_FUNC_LINK_FOLLOWS_SYMLINK],
 #       include <sys/types.h>
 #       include <sys/stat.h>
 #       include <unistd.h>
+#       include <stdlib.h>
 
 #       define SAME_INODE(Stat_buf_1, Stat_buf_2) \
          ((Stat_buf_1).st_ino == (Stat_buf_2).st_ino \

diff --git a/m4/ls-mntd-fs.m4 b/m4/ls-mntd-fs.m4
index 2e0f712..f7db990 100644 (file)
--- a/m4/ls-mntd-fs.m4
+++ b/m4/ls-mntd-fs.m4
@@ -1,4 +1,4 @@
-#serial 24
+#serial 25
 # How to list mounted file systems.
 
 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006 Free Software
@@ -141,7 +141,8 @@ if test $ac_cv_func_getmntent = yes; then
 # endif
 #endif
 ],
-                    [ struct mntent *mnt = 0; char *table = MOUNTED; ],
+                    [ struct mntent *mnt = 0; char *table = MOUNTED;
+                     if (sizeof mnt > 0 && table > 0) return 0;],
                    fu_cv_sys_mounted_getmntent1=yes,
                    fu_cv_sys_mounted_getmntent1=no)])
     AC_MSG_RESULT($fu_cv_sys_mounted_getmntent1)

diff --git a/m4/mkdir-slash.m4 b/m4/mkdir-slash.m4
index c1e595b..3c25d2a 100644 (file)
--- a/m4/mkdir-slash.m4
+++ b/m4/mkdir-slash.m4
@@ -1,6 +1,6 @@
-#serial 4
+#serial 5
 
-# Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003, 2004, 2006 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -10,6 +10,7 @@
 # trailing slashes.
 AC_DEFUN([gl_FUNC_MKDIR_TRAILING_SLASH],
 [dnl
+  AC_CHECK_HEADERS_ONCE(unistd.h)
   AC_CACHE_CHECK([whether mkdir fails due to a trailing slash],
     gl_cv_func_mkdir_trailing_slash_bug,
     [
@@ -19,6 +20,9 @@ AC_DEFUN([gl_FUNC_MKDIR_TRAILING_SLASH],
 #       include <sys/types.h>
 #       include <sys/stat.h>
 #       include <stdlib.h>
+#       ifdef HAVE_UNISTD_H
+#         include <unistd.h>
+#       endif
        int main ()
        {
          rmdir ("confdir-slash");

diff --git a/m4/physmem.m4 b/m4/physmem.m4
index 6956e3a..456bb37 100644 (file)
--- a/m4/physmem.m4
+++ b/m4/physmem.m4
@@ -1,4 +1,4 @@
-# physmem.m4 serial 6
+# physmem.m4 serial 7
 dnl Copyright (C) 2002, 2003, 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,
@@ -12,7 +12,8 @@ AC_DEFUN([gl_SYS__SYSTEM_CONFIGURATION],
     [AC_LINK_IFELSE([AC_LANG_PROGRAM(
                      [[#include <sys/systemcfg.h>
                      ]],
-                     [double x = _system_configuration.physmem;])],
+                     [double x = _system_configuration.physmem;
+                      if (x > 0.0) return 0;])],
       [gl_cv_var__system_configuration=yes],
       [gl_cv_var__system_configuration=no])])
 

diff --git a/m4/putenv.m4 b/m4/putenv.m4
index 04556b9..43a5dc5 100644 (file)
--- a/m4/putenv.m4
+++ b/m4/putenv.m4
@@ -1,4 +1,4 @@
-# putenv.m4 serial 11
+# putenv.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,
@@ -11,25 +11,21 @@ dnl The putenv in libc on at least SunOS 4.1.4 does *not* do that.
 
 AC_DEFUN([gl_FUNC_PUTENV],
 [AC_CACHE_CHECK([for SVID conformant putenv], jm_cv_func_svid_putenv,
-  [AC_TRY_RUN([
-    int
-    main ()
-    {
-      /* Put it in env.  */
-      if (putenv ("CONFTEST_putenv=val"))
-        return 1;
+  [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],[
+    /* Put it in env.  */
+    if (putenv ("CONFTEST_putenv=val"))
+      return 1;
 
-      /* Try to remove it.  */
-      if (putenv ("CONFTEST_putenv"))
-        return 1;
+    /* Try to remove it.  */
+    if (putenv ("CONFTEST_putenv"))
+      return 1;
 
-      /* Make sure it was deleted.  */
-      if (getenv ("CONFTEST_putenv") != 0)
-        return 1;
+    /* Make sure it was deleted.  */
+    if (getenv ("CONFTEST_putenv") != 0)
+      return 1;
 
-      return 0;
-    }
-             ],
+    return 0;
+             ])],
             jm_cv_func_svid_putenv=yes,
             jm_cv_func_svid_putenv=no,
             dnl When crosscompiling, assume putenv is broken.

diff --git a/m4/readutmp.m4 b/m4/readutmp.m4
index bc85c5f..33ed4e8 100644 (file)
--- a/m4/readutmp.m4
+++ b/m4/readutmp.m4
@@ -1,4 +1,4 @@
-# readutmp.m4 serial 11
+# 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,
@@ -6,6 +6,9 @@ dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_READUTMP],
 [
+  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])

diff --git a/m4/rmdir-errno.m4 b/m4/rmdir-errno.m4
index 2907e7b..7693bc7 100644 (file)
--- a/m4/rmdir-errno.m4
+++ b/m4/rmdir-errno.m4
@@ -1,4 +1,4 @@
-#serial 7
+#serial 8
 
 # Copyright (C) 2000, 2001, 2005, 2006 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
@@ -12,6 +12,7 @@
 # test runs a test to determine the actual numeric value.
 AC_DEFUN([gl_FUNC_RMDIR_NOTEMPTY],
 [dnl
+  AC_CHECK_HEADERS_ONCE(unistd.h)
   AC_CACHE_CHECK([for rmdir-not-empty errno value],
     gl_cv_func_rmdir_errno_not_empty,
     [
@@ -21,6 +22,9 @@ AC_DEFUN([gl_FUNC_RMDIR_NOTEMPTY],
       AC_TRY_RUN([
 #include <stdio.h>
 #include <errno.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
        int main ()
        {
          FILE *s;

diff --git a/m4/time_r.m4 b/m4/time_r.m4
index f8fbaf9..ac8353a 100644 (file)
--- a/m4/time_r.m4
+++ b/m4/time_r.m4
@@ -19,7 +19,8 @@ AC_DEFUN([gl_TIME_R],
        [/* We don't need to append 'restrict's to the argument types,
           even though the POSIX signature has the 'restrict's,
           since C99 says they can't affect type compatibility.  */
-       struct tm * (*ptr) (time_t const *, struct tm *) = localtime_r;],
+       struct tm * (*ptr) (time_t const *, struct tm *) = localtime_r;
+        if (ptr) return 0;],
        [gl_cv_time_r_posix=yes],
        [gl_cv_time_r_posix=no])])
   if test $gl_cv_time_r_posix = yes; then