#!/bin/ksh
# $Id: makeme,v 4.7 2008/01/17 23:20:48 ksb Exp $
# This hack won't work for every trick you can play with /usr/msrc.
# If the Distfile sends different files to the various platforms, or
# builds a file on the meta source machine with a special tool or
# database you are toast.  {N.B. mk's lib, rdist, mkcmd have issues.}

# if we have a local.defs read it for umask, PATH, and such.
[ -f /usr/local/lib/distrib/local.defs ] && . /usr/local/lib/distrib/local.defs

# It does work for the tools that build the meta source system itself,
# of course (mkcmd, distrib, rcsvg, and the like).  You can use it to
# process the Make.host file through m4 for localhost.

# distrib: default column headers: %HOST SHORTHOST HOSTTYPE HOSTOS HASSRC
HOST=`expr "$HOST" : '\([^ :]*\)[ :].*' \| "$HOST" \| "$(uname -n 2>/dev/null)" \| "$(hostname 2>/dev/null)"`
if [ -z "$HOST" ] ; then
	echo "$0: cannot find hostname"
	exit 125
fi
if [ -z "$SHORTHOST" ] ; then
	SHORTHOST=`expr "$HOST" : '\([^ .]*\)[. ].*' \| "$HOST"`
fi
if [ -z "$HOSTTYPE" ] ; then
	case `uname -sr || uname -a` in
	AIX*)
		HOSTOS=`expr \`uname -v\` '*' 100 + \`uname -r\``00
		HOSTTYPE="IBMR2" ;;
	HP-UX*7.*)
		HOSTTYPE="HPUX9" ;;
	HP-UX*8.*)
		HOSTTYPE="HPUX9" ;;
	HP-UX*9.*)
		HOSTTYPE="HPUX9" ;;
	HP-UX*10.*)
		HOSTTYPE="HPUX10" ;;
	HP-UX*11.*)
		HOSTTYPE="HPUX11" ;;
	*NEXT*)
		HOSTTYPE="NEXT2" ;;
	*Solaris*|*[Ss]un[Oo][Ss]*)
		HOSTTYPE="SUN5" ;;
	FreeBSD*)
		raw=`uname -r | tr '[A-Z]' '[a-z]'`
		maj=`expr "$raw" : '\([0-9]*\)\..*'`
		minor=`expr "$raw" : "$maj\.\\([0-9]*\\).*" \| 0`
		patch=`expr "$raw" : '.*p\([0-9]*\)' \| 0`
		HOSTOS=`expr $maj \* 10000 + $minor \* 100  + $patch`
		HOSTTYPE="FREEBSD" ;;
	N[eE][tT]BSD*)
		HOSTTYPE="NETBSD" ;;
	OpenBSD*)
		HOSTTYPE="OPENBSD" ;;
	BSDI*)
		HOSTTYPE="BSDI" ;;
	Linux*|LINUX*)
		HOSTTYPE="LINUX" ;;
	*)
		echo 1>&2 "$0: set HOSTTYPE and export it by hand."
		exit 2 ;;
	esac
fi
if [ -z "$HOSTOS" ] ; then
	HOSTOS=`uname -r | sed -e 's/^[A-Za-z .]*//' -e 's/-[A-Za-z]*//' -e 's/\.\([0-9][0-9]\)/\1/g' -e 'y/./0/' -e 's/^0*//' | sed -e 's/$/00000/' -e 's/\(.....\)0*/\1/'`
fi

if [ $# -eq 1  -a  _-V = _"$1" ] ; then
	echo "$0: "'$Id: makeme,v 4.7 2008/01/17 23:20:48 ksb Exp $'
	echo "$0: makeme as: $MAKEME"
	RUN='cat'
elif [ -f Make.host ] ; then
	RUN='(m4 - Make.host |make MAKE="$0" -f - ${1:+"$@"})'
elif [ -f Makefile ] ; then
	exec mmsrc -DHOST="$HOST" -DSHORTHOST="$SHORTHOST" -DHOSTTYPE="$HOSTTYPE" -DHOSTOS="$HOSTOS" -DMYTYPE="$HOSTTYPE" -DMYOS="$HOSTOS" -DHASSRC=yes -DMSRC_BOOT="${MSRC_BOOT:-yes}" make ${1+"$@"}
else
	echo 1>&2 "$0: not in a master source directory, no Make.host or Makefile"
	exit 126
fi

# Now fake the Distrib @file@ (or hxmd) expansion and hope the rest works out.
# Some make's mistakenly think you must call fork() to get a SIG-child...
# so they barf out errors for this -- they should learn UNIX.  (ksb)
eval "$RUN" <<!
define(\`HOST',\`$HOST')dnl
define(\`SHORTHOST',\`$SHORTHOST')dnl
define(\`HOSTTYPE',\`$HOSTTYPE')dnl
define(\`MYTYPE',\`$HOSTTYPE')dnl
define(\`HOSTOS',\`$HOSTOS')dnl
define(\`MYOS',\`$HOSTOS')dnl
define(\`HASSRC',\`yes')dnl
define(\`MSRC_BOOT',\`${MSRC_BOOT-yes}')dnl
!