diff options
Diffstat (limited to 'gl/m4/errno_h.m4')
| -rw-r--r-- | gl/m4/errno_h.m4 | 68 |
1 files changed, 11 insertions, 57 deletions
diff --git a/gl/m4/errno_h.m4 b/gl/m4/errno_h.m4 index b6050e5d..ade19b6f 100644 --- a/gl/m4/errno_h.m4 +++ b/gl/m4/errno_h.m4 | |||
| @@ -1,15 +1,21 @@ | |||
| 1 | # errno_h.m4 | 1 | # errno_h.m4 |
| 2 | # serial 14 | 2 | # serial 19 |
| 3 | dnl Copyright (C) 2004, 2006, 2008-2024 Free Software Foundation, Inc. | 3 | dnl Copyright (C) 2004, 2006, 2008-2026 Free Software Foundation, Inc. |
| 4 | dnl This file is free software; the Free Software Foundation | 4 | dnl This file is free software; the Free Software Foundation |
| 5 | dnl gives unlimited permission to copy and/or distribute it, | 5 | dnl gives unlimited permission to copy and/or distribute it, |
| 6 | dnl with or without modifications, as long as this notice is preserved. | 6 | dnl with or without modifications, as long as this notice is preserved. |
| 7 | dnl This file is offered as-is, without any warranty. | ||
| 7 | 8 | ||
| 8 | AC_PREREQ([2.61]) | 9 | AC_PREREQ([2.61]) |
| 9 | 10 | ||
| 10 | AC_DEFUN_ONCE([gl_HEADER_ERRNO_H], | 11 | AC_DEFUN_ONCE([gl_HEADER_ERRNO_H], |
| 11 | [ | 12 | [ |
| 12 | AC_REQUIRE([AC_PROG_CC]) | 13 | AC_REQUIRE([AC_PROG_CC]) |
| 14 | |||
| 15 | dnl Through the dependency on module extensions-aix, _LINUX_SOURCE_COMPAT | ||
| 16 | dnl gets defined already before this macro gets invoked. This persuades | ||
| 17 | dnl AIX 7.3 errno.h to assign ENOTEMPTY a value different than EEXIST. | ||
| 18 | |||
| 13 | AC_CACHE_CHECK([for complete errno.h], [gl_cv_header_errno_h_complete], [ | 19 | AC_CACHE_CHECK([for complete errno.h], [gl_cv_header_errno_h_complete], [ |
| 14 | AC_EGREP_CPP([booboo],[ | 20 | AC_EGREP_CPP([booboo],[ |
| 15 | #include <errno.h> | 21 | #include <errno.h> |
| @@ -64,6 +70,9 @@ booboo | |||
| 64 | #if !defined EILSEQ | 70 | #if !defined EILSEQ |
| 65 | booboo | 71 | booboo |
| 66 | #endif | 72 | #endif |
| 73 | #if !defined ESOCKTNOSUPPORT | ||
| 74 | booboo | ||
| 75 | #endif | ||
| 67 | ], | 76 | ], |
| 68 | [gl_cv_header_errno_h_complete=no], | 77 | [gl_cv_header_errno_h_complete=no], |
| 69 | [gl_cv_header_errno_h_complete=yes]) | 78 | [gl_cv_header_errno_h_complete=yes]) |
| @@ -74,59 +83,4 @@ booboo | |||
| 74 | gl_NEXT_HEADERS([errno.h]) | 83 | gl_NEXT_HEADERS([errno.h]) |
| 75 | GL_GENERATE_ERRNO_H=true | 84 | GL_GENERATE_ERRNO_H=true |
| 76 | fi | 85 | fi |
| 77 | gl_REPLACE_ERRNO_VALUE([EMULTIHOP]) | ||
| 78 | gl_REPLACE_ERRNO_VALUE([ENOLINK]) | ||
| 79 | gl_REPLACE_ERRNO_VALUE([EOVERFLOW]) | ||
| 80 | ]) | ||
| 81 | |||
| 82 | # Assuming $1 = EOVERFLOW. | ||
| 83 | # The EOVERFLOW errno value ought to be defined in <errno.h>, according to | ||
| 84 | # POSIX. But some systems (like OpenBSD 4.0 or AIX 3) don't define it, and | ||
| 85 | # some systems (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined. | ||
| 86 | # Check for the value of EOVERFLOW. | ||
| 87 | # Set the variables EOVERFLOW_HIDDEN and EOVERFLOW_VALUE. | ||
| 88 | AC_DEFUN([gl_REPLACE_ERRNO_VALUE], | ||
| 89 | [ | ||
| 90 | if $GL_GENERATE_ERRNO_H; then | ||
| 91 | AC_CACHE_CHECK([for ]$1[ value], [gl_cv_header_errno_h_]$1, [ | ||
| 92 | AC_EGREP_CPP([yes],[ | ||
| 93 | #include <errno.h> | ||
| 94 | #ifdef ]$1[ | ||
| 95 | yes | ||
| 96 | #endif | ||
| 97 | ], | ||
| 98 | [gl_cv_header_errno_h_]$1[=yes], | ||
| 99 | [gl_cv_header_errno_h_]$1[=no]) | ||
| 100 | if test $gl_cv_header_errno_h_]$1[ = no; then | ||
| 101 | AC_EGREP_CPP([yes],[ | ||
| 102 | #define _XOPEN_SOURCE_EXTENDED 1 | ||
| 103 | #include <errno.h> | ||
| 104 | #ifdef ]$1[ | ||
| 105 | yes | ||
| 106 | #endif | ||
| 107 | ], [gl_cv_header_errno_h_]$1[=hidden]) | ||
| 108 | if test $gl_cv_header_errno_h_]$1[ = hidden; then | ||
| 109 | dnl The macro exists but is hidden. | ||
| 110 | dnl Define it to the same value. | ||
| 111 | AC_COMPUTE_INT([gl_cv_header_errno_h_]$1, $1, [ | ||
| 112 | #define _XOPEN_SOURCE_EXTENDED 1 | ||
| 113 | #include <errno.h> | ||
| 114 | /* The following two lines are a workaround against an autoconf-2.52 bug. */ | ||
| 115 | #include <stdio.h> | ||
| 116 | #include <stdlib.h> | ||
| 117 | ]) | ||
| 118 | fi | ||
| 119 | fi | ||
| 120 | ]) | ||
| 121 | case $gl_cv_header_errno_h_]$1[ in | ||
| 122 | yes | no) | ||
| 123 | ]$1[_HIDDEN=0; ]$1[_VALUE= | ||
| 124 | ;; | ||
| 125 | *) | ||
| 126 | ]$1[_HIDDEN=1; ]$1[_VALUE="$gl_cv_header_errno_h_]$1[" | ||
| 127 | ;; | ||
| 128 | esac | ||
| 129 | AC_SUBST($1[_HIDDEN]) | ||
| 130 | AC_SUBST($1[_VALUE]) | ||
| 131 | fi | ||
| 132 | ]) | 86 | ]) |
