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* unlink-busy.m4 (gl_FUNC_UNLINK_BUSY_TEXT): Use prototype

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to define main with arguments, for C++.  Reported by Eric Blake.
* c-stack.m4 (AC_SYS_XSI_STACK_OVERFLOW_HEURISTIC):
Prefer 'int main ()' to 'int main (void)', for C++.
* getcwd-path-max.m4 (gl_FUNC_GETCWD_PATH_MAX): Likewise.
* fsusage.m4 (gl_FILE_SYSTEM_USAGE): Specify a return type
for 'main', for C99 and C++.
This commit is contained in:
Paul Eggert
2006-04-24 17:50:24 +00:00
parent 779532f556
commit d02ad57764
4 changed files with 21 additions and 8 deletions
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10
m4/ChangeLog
View File

@@ -1,3 +1,13 @@
2006-04-24 Paul Eggert <eggert@cs.ucla.edu>
* unlink-busy.m4 (gl_FUNC_UNLINK_BUSY_TEXT): Use prototype
to define main with arguments, for C++. Reported by Eric Blake.
* c-stack.m4 (AC_SYS_XSI_STACK_OVERFLOW_HEURISTIC):
Prefer 'int main ()' to 'int main (void)', for C++.
* getcwd-path-max.m4 (gl_FUNC_GETCWD_PATH_MAX): Likewise.
* fsusage.m4 (gl_FILE_SYSTEM_USAGE): Specify a return type
for 'main', for C99 and C++.
2006-04-24 Paul Eggert <eggert@cs.ucla.edu>
* fsusage.m4 (gl_FILE_SYSTEM_USAGE): Use return, not exit.

7
m4/fsusage.m4
View File

@@ -1,4 +1,4 @@
#serial 17
#serial 18
# Obtaining file system usage information.
# Copyright (C) 1997, 1998, 2000, 2001, 2003, 2004, 2005, 2006 Free Software
@@ -74,6 +74,7 @@ if test $ac_fsusage_space = no; then
#include <sys/param.h>
#include <sys/types.h>
#include <sys/mount.h>
int
main ()
{
struct statfs fsd;
@@ -106,6 +107,7 @@ member (AIX, 4.3BSD)])
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
int
main ()
{
struct statfs fsd;
@@ -130,6 +132,7 @@ if test $ac_fsusage_space = no; then
AC_CACHE_VAL(fu_cv_sys_stat_statfs4,
[AC_TRY_RUN([#include <sys/types.h>
#include <sys/statfs.h>
int
main ()
{
struct statfs fsd;
@@ -158,6 +161,7 @@ member (4.4BSD and NetBSD)])
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
int
main ()
{
struct statfs fsd;
@@ -190,6 +194,7 @@ if test $ac_fsusage_space = no; then
#ifdef HAVE_SYS_FS_TYPES_H
#include <sys/fs_types.h>
#endif
int
main ()
{
struct fs_data fsd;

6
m4/getcwd-path-max.m4
View File

@@ -1,4 +1,4 @@
#serial 10
#serial 11
# Check for several getcwd bugs with long file names.
# If so, arrange to compile the wrapper function.
@@ -6,7 +6,7 @@
# I've heard that this is due to a Linux kernel bug, and that it has
# been fixed between 2.4.21-pre3 and 2.4.21-pre4. */
# Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
# Copyright (C) 2003, 2004, 2005, 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.
@@ -61,7 +61,7 @@ AC_DEFUN([gl_FUNC_GETCWD_PATH_MAX],
#define BUF_SLOP 20
int
main (void)
main ()
{
#ifndef PATH_MAX
/* The Hurd doesn't define this, so getcwd can't exhibit the bug --

6
m4/unlink-busy.m4
View File

@@ -1,4 +1,4 @@
#serial 9
#serial 10
dnl From J. David Anglin.
@@ -18,9 +18,7 @@ AC_DEFUN([gl_FUNC_UNLINK_BUSY_TEXT],
[AC_LANG_SOURCE(
[AC_INCLUDES_DEFAULT
int
main (argc, argv)
int argc;
char **argv;
main (int argc, char **argv)
{
return !argc || unlink (argv[0]) != 0;
}])],