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Member "gcal-4.1/m4/errno_h.m4" (22 Jan 2017, 3228 Bytes) of package /linux/misc/gcal-4.1.tar.gz:


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    1 # errno_h.m4 serial 12
    2 dnl Copyright (C) 2004, 2006, 2008-2017 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 ETXTBSY
   14 booboo
   15 #endif
   16 #if !defined ENOMSG
   17 booboo
   18 #endif
   19 #if !defined EIDRM
   20 booboo
   21 #endif
   22 #if !defined ENOLINK
   23 booboo
   24 #endif
   25 #if !defined EPROTO
   26 booboo
   27 #endif
   28 #if !defined EMULTIHOP
   29 booboo
   30 #endif
   31 #if !defined EBADMSG
   32 booboo
   33 #endif
   34 #if !defined EOVERFLOW
   35 booboo
   36 #endif
   37 #if !defined ENOTSUP
   38 booboo
   39 #endif
   40 #if !defined ENETRESET
   41 booboo
   42 #endif
   43 #if !defined ECONNABORTED
   44 booboo
   45 #endif
   46 #if !defined ESTALE
   47 booboo
   48 #endif
   49 #if !defined EDQUOT
   50 booboo
   51 #endif
   52 #if !defined ECANCELED
   53 booboo
   54 #endif
   55 #if !defined EOWNERDEAD
   56 booboo
   57 #endif
   58 #if !defined ENOTRECOVERABLE
   59 booboo
   60 #endif
   61 #if !defined EILSEQ
   62 booboo
   63 #endif
   64       ],
   65       [gl_cv_header_errno_h_complete=no],
   66       [gl_cv_header_errno_h_complete=yes])
   67   ])
   68   if test $gl_cv_header_errno_h_complete = yes; then
   69     ERRNO_H=''
   70   else
   71     gl_NEXT_HEADERS([errno.h])
   72     ERRNO_H='errno.h'
   73   fi
   74   AC_SUBST([ERRNO_H])
   75   AM_CONDITIONAL([GL_GENERATE_ERRNO_H], [test -n "$ERRNO_H"])
   76   gl_REPLACE_ERRNO_VALUE([EMULTIHOP])
   77   gl_REPLACE_ERRNO_VALUE([ENOLINK])
   78   gl_REPLACE_ERRNO_VALUE([EOVERFLOW])
   79 ])
   80 
   81 # Assuming $1 = EOVERFLOW.
   82 # The EOVERFLOW errno value ought to be defined in <errno.h>, according to
   83 # POSIX.  But some systems (like OpenBSD 4.0 or AIX 3) don't define it, and
   84 # some systems (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined.
   85 # Check for the value of EOVERFLOW.
   86 # Set the variables EOVERFLOW_HIDDEN and EOVERFLOW_VALUE.
   87 AC_DEFUN([gl_REPLACE_ERRNO_VALUE],
   88 [
   89   if test -n "$ERRNO_H"; then
   90     AC_CACHE_CHECK([for ]$1[ value], [gl_cv_header_errno_h_]$1, [
   91       AC_EGREP_CPP([yes],[
   92 #include <errno.h>
   93 #ifdef ]$1[
   94 yes
   95 #endif
   96       ],
   97       [gl_cv_header_errno_h_]$1[=yes],
   98       [gl_cv_header_errno_h_]$1[=no])
   99       if test $gl_cv_header_errno_h_]$1[ = no; then
  100         AC_EGREP_CPP([yes],[
  101 #define _XOPEN_SOURCE_EXTENDED 1
  102 #include <errno.h>
  103 #ifdef ]$1[
  104 yes
  105 #endif
  106           ], [gl_cv_header_errno_h_]$1[=hidden])
  107         if test $gl_cv_header_errno_h_]$1[ = hidden; then
  108           dnl The macro exists but is hidden.
  109           dnl Define it to the same value.
  110           AC_COMPUTE_INT([gl_cv_header_errno_h_]$1, $1, [
  111 #define _XOPEN_SOURCE_EXTENDED 1
  112 #include <errno.h>
  113 /* The following two lines are a workaround against an autoconf-2.52 bug.  */
  114 #include <stdio.h>
  115 #include <stdlib.h>
  116 ])
  117         fi
  118       fi
  119     ])
  120     case $gl_cv_header_errno_h_]$1[ in
  121       yes | no)
  122         ]$1[_HIDDEN=0; ]$1[_VALUE=
  123         ;;
  124       *)
  125         ]$1[_HIDDEN=1; ]$1[_VALUE="$gl_cv_header_errno_h_]$1["
  126         ;;
  127     esac
  128     AC_SUBST($1[_HIDDEN])
  129     AC_SUBST($1[_VALUE])
  130   fi
  131 ])
  132 
  133 dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in.
  134 dnl Remove this when we can assume autoconf >= 2.61.
  135 m4_ifdef([AC_COMPUTE_INT], [], [
  136   AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])])
  137 ])