maint: avoid new unused-macro warnings from gcc

* src/ls.c (ASSERT_MATCHING_DEV_INO): Comment-out unused definition,
to match commented-out use.
* src/install.c (INITIAL_HASH_MODULE, INITIAL_ENTRY_TAB_SIZE):
(READ_SIZE): Remove definitions of unused macros.
* src/mv.c (INITIAL_HASH_MODULE, INITIAL_ENTRY_TAB_SIZE): Likewise.
* src/dd.c (max): Likewise.
* src/expand.c (OUTPUT_BLOCK): Likewise.
* src/csplit.c (ALLOC_SIZE): Likewise.
* src/pr.c (NULLCOL): Likewise.
* src/ptx.c (Sword): Likewise.
* src/unexpand.c (OUTPUT_BLOCK): Likewise.
* src/factor.c (NDEBUG): Likewise.

10 files changed, 7 insertions, 40 deletions

diff --git a/src/csplit.c b/src/csplit.c
index b50a65076..4f0beb6c4 100644
--- a/src/csplit.c
+++ b/src/csplit.c
@@ -1,5 +1,5 @@
 /* csplit - split a file into sections determined by context lines
-   Copyright (C) 91, 1995-2008 Free Software Foundation, Inc.
+   Copyright (C) 91, 1995-2009 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -41,9 +41,6 @@
   proper_name ("Stuart Kemp"), \
   proper_name ("David MacKenzie")
 
-/* Increment size of area for control records. */
-#define ALLOC_SIZE 20
-
 /* The default prefix for output file names. */
 #define DEFAULT_PREFIX	"xx"
 
diff --git a/src/dd.c b/src/dd.c
index e9a55044a..9a1c875fe 100644
--- a/src/dd.c
+++ b/src/dd.c
@@ -76,7 +76,6 @@ static void process_signals (void);
 # define fdatasync(fd) (errno = ENOSYS, -1)
 #endif
 
-#define max(a, b) ((a) > (b) ? (a) : (b))
 #define output_char(c)				\
   do						\
     {						\
diff --git a/src/expand.c b/src/expand.c
index 87c89152e..10f36430d 100644
--- a/src/expand.c
+++ b/src/expand.c
@@ -1,5 +1,5 @@
 /* expand - convert tabs to spaces
-   Copyright (C) 89, 91, 1995-2006, 2008 Free Software Foundation, Inc.
+   Copyright (C) 89, 91, 1995-2006, 2008-2009 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -47,10 +47,6 @@
 
 #define AUTHORS proper_name ("David MacKenzie")
 
-/* The number of bytes added at a time to the amount of memory
-   allocated for the output line.  */
-#define OUTPUT_BLOCK 256
-
 /* If true, convert blanks even after nonblank characters have been
    read on the line.  */
 static bool convert_entire_line;
diff --git a/src/factor.c b/src/factor.c
index 83cd0a8a5..47273a2bc 100644
--- a/src/factor.c
+++ b/src/factor.c
@@ -1,5 +1,5 @@
 /* factor -- print prime factors of n.
-   Copyright (C) 86, 1995-2005, 2007-2008 Free Software Foundation, Inc.
+   Copyright (C) 86, 1995-2005, 2007-2009 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -29,9 +29,7 @@
 #include <gmp.h>
 #endif
 
-
 #include <assert.h>
-#define NDEBUG 1
 
 #include "system.h"
 #include "error.h"
diff --git a/src/install.c b/src/install.c
index b09c405c4..59478a3a2 100644
--- a/src/install.c
+++ b/src/install.c
@@ -71,15 +71,6 @@ static bool use_default_selinux_context = true;
 # define matchpathcon_init_prefix(a, p) /* empty */
 #endif
 
-/* Initial number of entries in each hash table entry's table of inodes.  */
-#define INITIAL_HASH_MODULE 100
-
-/* Initial number of entries in the inode hash table.  */
-#define INITIAL_ENTRY_TAB_SIZE 70
-
-/* Number of bytes of a file to copy at a time. */
-#define READ_SIZE (32 * 1024)
-
 static bool change_timestamps (struct stat const *from_sb, char const *to);
 static bool change_attributes (char const *name);
 static bool copy_file (const char *from, const char *to,
diff --git a/src/ls.c b/src/ls.c
index 5d0deecaf..fa6a59a9d 100644
--- a/src/ls.c
+++ b/src/ls.c
@@ -943,6 +943,7 @@ dev_ino_pop (void)
   return *(struct dev_ino *) obstack_next_free (&dev_ino_obstack);
 }
 
+/* Note the use commented out below:
 #define ASSERT_MATCHING_DEV_INO(Name, Di)	\
   do						\
     {						\
@@ -953,7 +954,7 @@ dev_ino_pop (void)
       assert (sb.st_ino == Di.st_ino);		\
     }						\
   while (0)
-
+*/
 
 /* Write to standard output PREFIX, followed by the quoting style and
    a space-separated list of the integers stored in OS all on one line.  */
diff --git a/src/mv.c b/src/mv.c
index 77ad2fbe9..73bd3eff7 100644
--- a/src/mv.c
+++ b/src/mv.c
@@ -41,12 +41,6 @@
   proper_name ("David MacKenzie"), \
   proper_name ("Jim Meyering")
 
-/* Initial number of entries in each hash table entry's table of inodes.  */
-#define INITIAL_HASH_MODULE 100
-
-/* Initial number of entries in the inode hash table.  */
-#define INITIAL_ENTRY_TAB_SIZE 70
-
 /* For long options that have no equivalent short option, use a
    non-character as a pseudo short option, starting with CHAR_MAX + 1.  */
 enum
diff --git a/src/pr.c b/src/pr.c
index 308a02570..0c02430e3 100644
--- a/src/pr.c
+++ b/src/pr.c
@@ -413,8 +413,6 @@ struct COLUMN
 
 typedef struct COLUMN COLUMN;
 
-#define NULLCOL (COLUMN *)0
-
 static int char_to_clump (char c);
 static bool read_line (COLUMN *p);
 static bool print_page (void);
diff --git a/src/ptx.c b/src/ptx.c
index c04c90c7c..5d29bd145 100644
--- a/src/ptx.c
+++ b/src/ptx.c
@@ -1,5 +1,5 @@
 /* Permuted index for GNU, with keywords in their context.
-   Copyright (C) 1990, 1991, 1993, 1998-2008 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1991, 1993, 1998-2009 Free Software Foundation, Inc.
    François Pinard <pinard@iro.umontreal.ca>, 1988.
 
    This program is free software: you can redistribute it and/or modify
@@ -65,9 +65,6 @@
    the actual reallocation step, but its base two logarithm.  */
 #define SWALLOW_REALLOC_LOG 12
 
-/* Imported from "regex.c".  */
-#define Sword 1
-
 /* Program options.  */
 
 enum Format
diff --git a/src/unexpand.c b/src/unexpand.c
index d73d101d4..9f6a6d7a2 100644
--- a/src/unexpand.c
+++ b/src/unexpand.c
@@ -1,5 +1,5 @@
 /* unexpand - convert blanks to tabs
-   Copyright (C) 89, 91, 1995-2006, 2008 Free Software Foundation, Inc.
+   Copyright (C) 89, 91, 1995-2006, 2008-2009 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -48,10 +48,6 @@
 
 #define AUTHORS proper_name ("David MacKenzie")
 
-/* The number of bytes added at a time to the amount of memory
-   allocated for the output line.  */
-#define OUTPUT_BLOCK 256
-
 /* If true, convert blanks even after nonblank characters have been
    read on the line.  */
 static bool convert_entire_line;