config-scripts/cups-opsys.m4

   1 dnl
   2 dnl Operating system stuff for CUPS.
   3 dnl
   4 dnl Copyright 2007-2017 by Apple Inc.
   5 dnl Copyright 1997-2006 by Easy Software Products, all rights reserved.
   6 dnl
   7 dnl Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
   8 dnl
   9
  10 dnl Get the build and host platforms and split the host_os value
  11 AC_CANONICAL_BUILD
  12 AC_CANONICAL_HOST
  13
  14 [host_os_name=`echo $host_os | sed -e '1,$s/[0-9.]*$//g'`]
  15 [host_os_version=`echo $host_os | sed -e '1,$s/^[^0-9.]*//g' | awk -F. '{print $1 $2}'`]
  16 # Linux often does not yield an OS version we can use...
  17 if test "x$host_os_version" = x; then
  18         host_os_version="0"
  19 fi
  20
  21 if test "$host_os_name" = darwin -a $host_os_version -lt 120; then
  22         AC_MSG_ERROR([Sorry, this version of CUPS requires macOS 10.8 or higher.])
  23 fi
  24
  25 dnl Determine whether we are cross-compiling...
  26 if test "$build" = "$host"; then
  27         # No, build local targets
  28         LOCALTARGET="local"
  29 else
  30         # Yes, don't build local targets
  31         LOCALTARGET=""
  32 fi
  33 AC_SUBST(LOCALTARGET)