#!/bin/sh
#
#	base/src/tools $Id$
# 	Author: Robert Zieman (ANL)
# 	Date:	6/03/91
# 
# 	Experimental Physics and Industrial Control System (EPICS)
# 
# 	Copyright 1991, the Regents of the University of California,
# 	and the University of Chicago Board of Governors.
# 
# 	This software was produced under  U.S. Government contracts:
# 	(W-7405-ENG-36) at the Los Alamos National Laboratory,
# 	and (W-31-109-ENG-38) at Argonne National Laboratory.
# 
# 	Initial development by:
# 		The Controls and Automation Group (AT-8)
# 		Ground Test Accelerator
# 		Accelerator Technology Division
# 		Los Alamos National Laboratory
# 
# 	Co-developed with
# 		The Controls and Computing Group
# 		Accelerator Systems Division
# 		Advanced Photon Source
# 		Argonne National Laboratory
# 
#  Modification Log:
#  -----------------
#  .00	mm-dd-yy	iii	Comment
#  .01	05-04-94	pg	HPUX port modifications.
#  .02	08-25-94	mda	use makedepend for HP or Alpha if no GCC
#  .03	04-28-95	anj	use GetVar and case for host arch
#  	...
#

# tool to rebuild errSymTbl.c when ../errInc.c or it's depends change

# Usage 	blderrSymTbl EPICS HOST_ARCH MAKE VXLIST     - IOC and commmon
# Usage 	blderrSymTbl EPICS HOST_ARCH MAKE 		- just common


GetVar ()
{

if [ -z "$2" ]; then
	echo "usage: $0 EPICS MAKE VAR_NAME [TARGET_ARCH]"
	exit 1
fi

TOP=$1
MAKE=$2

INCLUDE=${TOP}/src/config/CONFIG_BASE

if [ -z "$4" ]; then
	OPTS=""
else
	OPTS="T_A=$4"
fi

PID=$$

# Construct temporary makefile
cat - <<MFILE > /tmp/Makefile.tmp.$$

TOP=$TOP

include ${INCLUDE}

all:
	@echo "\$($3)" > /tmp/Makefile.tmp.out.$PID

MFILE

$MAKE -f /tmp/Makefile.tmp.$$ $OPTS > /dev/null

# Display value
cat /tmp/Makefile.tmp.out.$$

rm -f /tmp/Makefile.tmp.$$ /tmp/Makefile.tmp.out.$$

exit 0

}
if [ "x" = "x$4" ]; then
	DEF="XXX"
else
	DEF="${4}"
fi

TMPMAKEFILE=/tmp/tmpmakefile
SFILES=/tmp/sfiles
TOP=$1
HOST_ARCH=$2
MAKE=$3
SRC=$TOP/src
INCLUDEH="-I$SRC/include -I$SRC/as -I$SRC/ca -I$SRC/cas/generic -I$SRC/db -I..\
	-I$SRC/drv/old -I$SRC/drv/ansi -I$SRC/dbStatic -I$SRC/bpt -I$SRC/dev" 

case $HOST_ARCH in
    alpha | hp700 | sgi | Linux)
	# Use gcc if it can be found, or makedepend

	GCC=`which gcc`
	if [ -x "$GCC" ]; then
		FILES=`"$GCC" -M -D$DEF $INCLUDEH \
		../errInc.c 2>/dev/null \
		| sed -e 's/errInc\.o.*: errInc\.c//' -e 's/\\\//'`
	else
           MAKEDEPEND=`which makedepend`
	   if [ -x "$MAKEDEPEND" ]; then
	      FILES=`"$MAKEDEPEND" -f- -D$DEF $INCLUDEH \
		../errInc.c 2>/dev/null | sed -e 's/errInc.o://' -e 's/\\\//'`
	   else
	      echo Neither GCC or MAKEDEPEND found.
	      exit 1
	   fi
	fi
	;;
    solaris)
	# use -xM option of ACC to list dependencies

	#CC=`$EPICS/base/bin/$HOST_ARCH/GetVar $EPICS $MAKE ACC $HOST_ARCH`
	CC=`GetVar $TOP $MAKE ACC $HOST_ARCH`
	FILES=`$CC -xM -D$DEF $INCLUDEH ../errInc.c \
	| grep "errInc.o" | grep -v "errInc.c" \
	| sed -e 's/errInc\.o://'`
        ;;
    sun4)
	# use -M option of Sun compiler to list make dependencies

	FILES=`cc -M -D$DEF $INCLUDEH errInc.c 2>/dev/null \
	| grep "errInc.o" | grep -v "errInc.c" \
	| sed -e 's/errInc\.o://'`
	;;
    *)
	# Unrecognised host architecture
	echo $0: host architecture not supported
	exit 1
esac


# files with S_ defines
grep "^#define[       ]*S_" $FILES /dev/null \
	| sed -e 's-:.*--' | sort -u >$SFILES


# create a tmpmakefile
cat $SFILES | (awk '
BEGIN	{print "errInc.o :  ../errInc.c \\"}
{print "	"$0" \\" }
END {print "	../errMdef.h"}

') > $TMPMAKEFILE

	cat >> $TMPMAKEFILE <<!addon
	/bin/rm -f errSymTbl.c
	../makeStatTbl  \`cat $SFILES\`  >errSymTbl.c
	/bin/rm -f  errInc.o
	touch errInc.o
!addon
	$MAKE -f $TMPMAKEFILE
	/bin/rm -f $TMPMAKEFILE $SFILES
exit 0