← Back to branch summary

~ubuntu-branches/ubuntu/utopic/coreutils/utopic-proposed

« back to all changes in this revision

Viewing changes to m4/fdopen.m4

  • Committer: Package Import Robot
  • Author(s): Colin Watson
  • Date: 2012-11-28 03:03:42 UTC
  • mfrom: (8.3.4 sid)
  • Revision ID: package-import@ubuntu.com-20121128030342-21zanj8354gas5gr
Tags: 8.20-3ubuntu1
* Resynchronise with Debian.  Remaining changes:
  - Make 'uname -i -p' return the real processor/hardware, instead of
    unknown.
  - Build-depend on gettext:any instead of on gettext, so that apt-get can
    properly resolve build-dependencies on the tool when cross-building.

Show diffs side-by-side

added added

removed removed

Lines of Context:
m4/fdopen.m4
 
1
# fdopen.m4 serial 3
 
2
dnl Copyright (C) 2011-2012 Free Software Foundation, Inc.
 
3
dnl This file is free software; the Free Software Foundation
 
4
dnl gives unlimited permission to copy and/or distribute it,
 
5
dnl with or without modifications, as long as this notice is preserved.
 
6
 
 
7
AC_DEFUN([gl_FUNC_FDOPEN],
 
8
[
 
9
  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
 
10
  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
 
11
  AC_REQUIRE([gl_MSVC_INVAL])
 
12
  if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
 
13
    REPLACE_FDOPEN=1
 
14
  else
 
15
    dnl Test whether fdopen() sets errno when it fails due to a bad fd argument.
 
16
    AC_CACHE_CHECK([whether fdopen sets errno], [gl_cv_func_fdopen_works],
 
17
      [
 
18
        AC_RUN_IFELSE(
 
19
          [AC_LANG_SOURCE([[
 
20
#include <stdio.h>
 
21
#include <errno.h>
 
22
int
 
23
main (void)
 
24
{
 
25
  FILE *fp;
 
26
  errno = 0;
 
27
  fp = fdopen (-1, "r");
 
28
  if (fp == NULL && errno == 0)
 
29
    return 1;
 
30
  return 0;
 
31
}]])],
 
32
          [gl_cv_func_fdopen_works=yes],
 
33
          [gl_cv_func_fdopen_works=no],
 
34
          [case "$host_os" in
 
35
             mingw*) gl_cv_func_fdopen_works="guessing no" ;;
 
36
             *)      gl_cv_func_fdopen_works="guessing yes" ;;
 
37
           esac
 
38
          ])
 
39
      ])
 
40
    case "$gl_cv_func_fdopen_works" in
 
41
      *no) REPLACE_FDOPEN=1 ;;
 
42
    esac
 
43
  fi
 
44
])
 
45
 
 
46
dnl Prerequisites of lib/fdopen.c.
 
47
AC_DEFUN([gl_PREREQ_FDOPEN], [])