--- /dev/null
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_count_cpus.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_PLATFORM
+#
+# DESCRIPTION
+#
+# Provide target and host defines.
+#
+# LICENSE
+#
+# Copyright (c) 2012 Brian Aker <brian@tangent.org>
+#
+# Copying and distribution of this file, with or without modification, are
+# permitted in any medium without royalty provided the copyright notice
+# and this notice are preserved. This file is offered as-is, without any
+# warranty.
+
+#serial 1
+ AC_DEFUN([AX_PLATFORM],[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([AC_CANONICAL_TARGET])
+
+ AC_DEFINE_UNQUOTED([HOST_VENDOR], ["$host_vendor"],[Vendor of Build System])
+ AC_DEFINE_UNQUOTED([HOST_OS], ["$host_os"], [OS of Build System])
+ AC_DEFINE_UNQUOTED([HOST_CPU], ["$host_cpu"], [CPU of Build System])
+
+ AC_DEFINE_UNQUOTED([TARGET_VENDOR], ["$target_vendor"],[Vendor of Target System])
+ AC_DEFINE_UNQUOTED([TARGET_OS], ["$target_os"], [OS of Target System])
+ AC_DEFINE_UNQUOTED([TARGET_CPU], ["$target_cpu"], [CPU of Target System])
+
+ AS_CASE([$target_os],[
+ *mingw32*],[
+ AC_DEFINE([TARGET_OS_WINDOWS], [1], [Whether we are building for Windows])
+ AC_DEFINE([WINVER], [WindowsXP], [Version of Windows])
+ AC_DEFINE([_WIN32_WINNT], [0x0501], [Magical number to make things work])
+ AC_DEFINE([EAI_SYSTEM], [11], [Another magical number])
+ AH_BOTTOM([
+#ifndef HAVE_SYS_SOCKET_H
+# define SHUT_RD SD_RECEIVE
+# define SHUT_WR SD_SEND
+# define SHUT_RDWR SD_BOTH
+#endif
+ ])
+ ],[
+ *freebsd*],[
+ AC_DEFINE([TARGET_OS_FREEBSD], [1], [Whether we are building for FreeBSD])
+ AC_DEFINE([__APPLE_CC__],[1],[Workaround for bug in FreeBSD headers])
+ ],[
+ *solaris*],[
+ AC_DEFINE([TARGET_OS_SOLARIS], [1], [Whether we are building for Solaris])
+ ],[
+ *darwin*],[
+ AC_DEFINE([TARGET_OS_OSX], [1], [Whether we build for OSX])
+ ],[
+ *linux*],[
+ AC_DEFINE([TARGET_OS_LINUX], [1], [Whether we build for Linux])
+ ])
+
+ AM_CONDITIONAL(BUILD_WIN32, [test "x${TARGET_WINDOWS}" = "xtrue"])
+ AM_CONDITIONAL(TARGET_OSX, [test "x${TARGET_OSX}" = "xtrue"])
+ AM_CONDITIONAL(TARGET_LINUX, [test "x${TARGET_LINUX}" = "xtrue"])
+ ])