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comparison m4/errno_h.m4 @ 421:3c2e1f24cc7d 3.0-beta2
Added generated files for release
author | lost@l-w.ca |
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date | Sun, 19 Sep 2010 01:33:24 -0600 |
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420:7366deedfa85 | 421:3c2e1f24cc7d |
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1 # errno_h.m4 serial 6 | |
2 dnl Copyright (C) 2004, 2006, 2008, 2009, 2010 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_ONCE([gl_HEADER_ERRNO_H], | |
8 [ | |
9 AC_REQUIRE([AC_PROG_CC]) | |
10 AC_CACHE_CHECK([for complete errno.h], [gl_cv_header_errno_h_complete], [ | |
11 AC_EGREP_CPP([booboo],[ | |
12 #include <errno.h> | |
13 #if !defined ENOMSG | |
14 booboo | |
15 #endif | |
16 #if !defined EIDRM | |
17 booboo | |
18 #endif | |
19 #if !defined ENOLINK | |
20 booboo | |
21 #endif | |
22 #if !defined EPROTO | |
23 booboo | |
24 #endif | |
25 #if !defined EMULTIHOP | |
26 booboo | |
27 #endif | |
28 #if !defined EBADMSG | |
29 booboo | |
30 #endif | |
31 #if !defined EOVERFLOW | |
32 booboo | |
33 #endif | |
34 #if !defined ENOTSUP | |
35 booboo | |
36 #endif | |
37 #if !defined ESTALE | |
38 booboo | |
39 #endif | |
40 #if !defined ECANCELED | |
41 booboo | |
42 #endif | |
43 ], | |
44 [gl_cv_header_errno_h_complete=no], | |
45 [gl_cv_header_errno_h_complete=yes]) | |
46 ]) | |
47 if test $gl_cv_header_errno_h_complete = yes; then | |
48 ERRNO_H='' | |
49 else | |
50 gl_CHECK_NEXT_HEADERS([errno.h]) | |
51 ERRNO_H='errno.h' | |
52 fi | |
53 AC_SUBST([ERRNO_H]) | |
54 gl_REPLACE_ERRNO_VALUE([EMULTIHOP]) | |
55 gl_REPLACE_ERRNO_VALUE([ENOLINK]) | |
56 gl_REPLACE_ERRNO_VALUE([EOVERFLOW]) | |
57 ]) | |
58 | |
59 # Assuming $1 = EOVERFLOW. | |
60 # The EOVERFLOW errno value ought to be defined in <errno.h>, according to | |
61 # POSIX. But some systems (like OpenBSD 4.0 or AIX 3) don't define it, and | |
62 # some systems (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined. | |
63 # Check for the value of EOVERFLOW. | |
64 # Set the variables EOVERFLOW_HIDDEN and EOVERFLOW_VALUE. | |
65 AC_DEFUN([gl_REPLACE_ERRNO_VALUE], | |
66 [ | |
67 if test -n "$ERRNO_H"; then | |
68 AC_CACHE_CHECK([for ]$1[ value], [gl_cv_header_errno_h_]$1, [ | |
69 AC_EGREP_CPP([yes],[ | |
70 #include <errno.h> | |
71 #ifdef ]$1[ | |
72 yes | |
73 #endif | |
74 ], | |
75 [gl_cv_header_errno_h_]$1[=yes], | |
76 [gl_cv_header_errno_h_]$1[=no]) | |
77 if test $gl_cv_header_errno_h_]$1[ = no; then | |
78 AC_EGREP_CPP([yes],[ | |
79 #define _XOPEN_SOURCE_EXTENDED 1 | |
80 #include <errno.h> | |
81 #ifdef ]$1[ | |
82 yes | |
83 #endif | |
84 ], [gl_cv_header_errno_h_]$1[=hidden]) | |
85 if test $gl_cv_header_errno_h_]$1[ = hidden; then | |
86 dnl The macro exists but is hidden. | |
87 dnl Define it to the same value. | |
88 AC_COMPUTE_INT([gl_cv_header_errno_h_]$1, $1, [ | |
89 #define _XOPEN_SOURCE_EXTENDED 1 | |
90 #include <errno.h> | |
91 /* The following two lines are a workaround against an autoconf-2.52 bug. */ | |
92 #include <stdio.h> | |
93 #include <stdlib.h> | |
94 ]) | |
95 fi | |
96 fi | |
97 ]) | |
98 case $gl_cv_header_errno_h_]$1[ in | |
99 yes | no) | |
100 ]$1[_HIDDEN=0; ]$1[_VALUE= | |
101 ;; | |
102 *) | |
103 ]$1[_HIDDEN=1; ]$1[_VALUE="$gl_cv_header_errno_h_]$1[" | |
104 ;; | |
105 esac | |
106 AC_SUBST($1[_HIDDEN]) | |
107 AC_SUBST($1[_VALUE]) | |
108 fi | |
109 ]) | |
110 | |
111 dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. | |
112 dnl Remove this when we can assume autoconf >= 2.61. | |
113 m4_ifdef([AC_COMPUTE_INT], [], [ | |
114 AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])]) | |
115 ]) |