Re: more warnings patrol

[Eric Blake]

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According to Eric Blake on 10/30/2009 6:10 PM:
> I'm committing this, to silence some unused variables, and to make
> inttostr.c quiet even on older gcc.

And looking in config.log, I found these.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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>From 6203770684e686597b1b0583663b852d8a3ae241 Mon Sep 17 00:00:00 2001
From: Eric Blake <address@hidden>
Date: Mon, 2 Nov 2009 06:03:20 -0700
Subject: [PATCH] maint: avoid compiler warnings in m4 macros

* m4/ungetc.m4 (gl_FUNC_UNGETC_WORKS): Avoid unused variable.
* m4/rmdir.m4 (gl_FUNC_RMDIR): Include correct header.

Signed-off-by: Eric Blake <address@hidden>
---
 ChangeLog    |    6 ++++++
 m4/rmdir.m4  |    3 ++-
 m4/ungetc.m4 |    4 ++--
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 9761612..d4a4cb0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2009-11-02  Eric Blake  <address@hidden>
+
+       maint: avoid compiler warnings in m4 macros
+       * m4/ungetc.m4 (gl_FUNC_UNGETC_WORKS): Avoid unused variable.
+       * m4/rmdir.m4 (gl_FUNC_RMDIR): Include correct header.
+
 2009-10-30  Eric Blake  <address@hidden>

        vasnprintf: avoid compiler warnings
diff --git a/m4/rmdir.m4 b/m4/rmdir.m4
index addd69d..599b789 100644
--- a/m4/rmdir.m4
+++ b/m4/rmdir.m4
@@ -1,4 +1,4 @@
-# rmdir.m4 serial 6
+# rmdir.m4 serial 7
 dnl Copyright (C) 2002, 2005, 2009 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -30,6 +30,7 @@ AC_DEFUN([gl_FUNC_RMDIR],
          [AC_LANG_PROGRAM(
            [[#include <stdio.h>
              #include <errno.h>
+             #include <unistd.h>
 ]], [[return !rmdir ("conftest.file/") || errno != ENOTDIR
        || !rmdir ("conftest.dir/./");]])],
          [gl_cv_func_rmdir_works=yes], [gl_cv_func_rmdir_works=no],
diff --git a/m4/ungetc.m4 b/m4/ungetc.m4
index 9236d4c..eb65235 100644
--- a/m4/ungetc.m4
+++ b/m4/ungetc.m4
@@ -1,4 +1,4 @@
-# ungetc.m4 serial 1
+# ungetc.m4 serial 2
 dnl Copyright (C) 2009 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 +12,7 @@ AC_DEFUN_ONCE([gl_FUNC_UNGETC_WORKS],
     [gl_cv_func_ungetc_works],
     [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
 #include <stdio.h>
-      ]], [FILE *f; long l;
+      ]], [FILE *f;
           if (!(f = fopen ("conftest.tmp", "w+"))) return 1;
           if (fputs ("abc", f) < 0) return 2;
           rewind (f);
-- 
1.6.5.rc1