Mercurial > gnulib
view m4/errno_h.m4 @ 17363:5a51fb7777a9
sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin
Problem reported by Marco Atzeri in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
Simply delegate to the system <sys/select.h> in this case too.
Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
be needed on Solaris either.
* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
Simply delgate to the system <sys/time.h> in this case.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Tue, 19 Mar 2013 09:08:47 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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# errno_h.m4 serial 12 dnl Copyright (C) 2004, 2006, 2008-2013 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN_ONCE([gl_HEADER_ERRNO_H], [ AC_REQUIRE([AC_PROG_CC]) AC_CACHE_CHECK([for complete errno.h], [gl_cv_header_errno_h_complete], [ AC_EGREP_CPP([booboo],[ #include <errno.h> #if !defined ETXTBSY booboo #endif #if !defined ENOMSG booboo #endif #if !defined EIDRM booboo #endif #if !defined ENOLINK booboo #endif #if !defined EPROTO booboo #endif #if !defined EMULTIHOP booboo #endif #if !defined EBADMSG booboo #endif #if !defined EOVERFLOW booboo #endif #if !defined ENOTSUP booboo #endif #if !defined ENETRESET booboo #endif #if !defined ECONNABORTED booboo #endif #if !defined ESTALE booboo #endif #if !defined EDQUOT booboo #endif #if !defined ECANCELED booboo #endif #if !defined EOWNERDEAD booboo #endif #if !defined ENOTRECOVERABLE booboo #endif #if !defined EILSEQ booboo #endif ], [gl_cv_header_errno_h_complete=no], [gl_cv_header_errno_h_complete=yes]) ]) if test $gl_cv_header_errno_h_complete = yes; then ERRNO_H='' else gl_NEXT_HEADERS([errno.h]) ERRNO_H='errno.h' fi AC_SUBST([ERRNO_H]) AM_CONDITIONAL([GL_GENERATE_ERRNO_H], [test -n "$ERRNO_H"]) gl_REPLACE_ERRNO_VALUE([EMULTIHOP]) gl_REPLACE_ERRNO_VALUE([ENOLINK]) gl_REPLACE_ERRNO_VALUE([EOVERFLOW]) ]) # Assuming $1 = EOVERFLOW. # The EOVERFLOW errno value ought to be defined in <errno.h>, according to # POSIX. But some systems (like OpenBSD 4.0 or AIX 3) don't define it, and # some systems (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined. # Check for the value of EOVERFLOW. # Set the variables EOVERFLOW_HIDDEN and EOVERFLOW_VALUE. AC_DEFUN([gl_REPLACE_ERRNO_VALUE], [ if test -n "$ERRNO_H"; then AC_CACHE_CHECK([for ]$1[ value], [gl_cv_header_errno_h_]$1, [ AC_EGREP_CPP([yes],[ #include <errno.h> #ifdef ]$1[ yes #endif ], [gl_cv_header_errno_h_]$1[=yes], [gl_cv_header_errno_h_]$1[=no]) if test $gl_cv_header_errno_h_]$1[ = no; then AC_EGREP_CPP([yes],[ #define _XOPEN_SOURCE_EXTENDED 1 #include <errno.h> #ifdef ]$1[ yes #endif ], [gl_cv_header_errno_h_]$1[=hidden]) if test $gl_cv_header_errno_h_]$1[ = hidden; then dnl The macro exists but is hidden. dnl Define it to the same value. AC_COMPUTE_INT([gl_cv_header_errno_h_]$1, $1, [ #define _XOPEN_SOURCE_EXTENDED 1 #include <errno.h> /* The following two lines are a workaround against an autoconf-2.52 bug. */ #include <stdio.h> #include <stdlib.h> ]) fi fi ]) case $gl_cv_header_errno_h_]$1[ in yes | no) ]$1[_HIDDEN=0; ]$1[_VALUE= ;; *) ]$1[_HIDDEN=1; ]$1[_VALUE="$gl_cv_header_errno_h_]$1[" ;; esac AC_SUBST($1[_HIDDEN]) AC_SUBST($1[_VALUE]) fi ]) dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. dnl Remove this when we can assume autoconf >= 2.61. m4_ifdef([AC_COMPUTE_INT], [], [ AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])]) ])