#! /bin/sh
# LISTING 2: Makefile generation can be automated to some 
# extent.  The **mmake** Bourne shell script-**awk** program 
# uses the C source file names in the current directory and 
# **#include "**__header-file__**"** preprocessor directives 
# in those files in constructing a skeletal **make** 
# program-description file.  
#
# A. Listing of the **mmake** program, which prints a
# prototype makefile on the standard output:
#
# @(#) mmake  Create a simple makefile
# Author: Mansour G. Raad, July 1989
# set -x    # Uncomment for debugging
USAGE="Usage: $0 [target]"
# Process command-line arguments:
case $# in
	0)  CWD=`pwd`; TARGET=`basename $CWD` ;;
	1)  TARGET=$1 ;;    # User-specified target
	*)  echo $USAGE >&2 # Only one argument
		exit 1 ;;
esac
# Create make file:
echo "#"
echo "# Makefile"
echo "#"         # Heading lines
echo "#"
echo "TARGET = $TARGET"      # TARGET line

OS=`uname -s`
OSV=`uname -r`

  case $OS in 
  	SunOS) 
  case $OSV in 
	5*) echo "#Solaris "
  	MYTYPE=1 
  		;; 
  	*) echo "#SunOS" 
  	MYTYPE=2 
  		;; 
  esac 
  		;; 
  	ULTRIX) echo "#ULTRIX"  
    	MYTYPE=3 
  		;; 
  	Linux) echo "#Linux" 
  	MYTYPE==4 
  		;; 
	*) echo "#unknown"
		;;
  esac 
    
echo ""
echo "CFLAGS =-g" # C compiler flags
echo "CC=gcc"
CC="gcc"
echo "LIBS = -lX11 -lcurses -ltermcap"
case $MYTYPE in
	1) echo "MORELIBS = -lucb -lsocket"
	;;
	2) echo "MOREINCL="#-I/usr/local/lib/gcc-lib/sparc-sun-sunos4.1/2.5.8/include
	;;
esac
echo ""                # Libraries
echo ""
# Print entries for header files:
awk '
	$1 ~/#include/ && $2 ~ /"/ {
	print $2
	}' *.cc | sort -u | awk '{
		split($1, H, "\"")  # Puts "file.h" into H
		NH++
		HH[NH]=H[2]         # Puts file.h into HH
	}
END {
	printf("HFILES= \\\n")
	for (i = 1; i < NH; i++)
		printf("\t%s\\\n", HH[i])   # Prints file.h\
	printf("\t%s\n", HH[NH])        # Prints file.h
	}'
# Print eNtries for object files:
ls *.cc |        # List all C source files
awk -F. '{
	CC[NR]=$1   # Store file name without suffix
	}
	END {
		printf("OFILES= \\\n")
		for (i = 1; i < NR; i++)
			printf("\t%s.o\\\n", CC[i]) # Prints file.o\
	printf("\t%s.o\n", CC[NR])      # Prints file.o

# Print entry to make TARGET:
	printf("\n$(TARGET): $(OFILES)\n")
	printf("\t$(CC) -o $@ $(CFLAGS) $(OFILES) $(LIBS) $(MORELIBS)\n\n")
	printf("%%.o :\n")
	printf("\t$(CC) -o $@ -c  $(MOREINCL) $*.cc\n\n")
	}'
#%.d: %.c
for ff in *.cc ; do
	${CC} -MM ${ff} ${MOREINCL}
done

echo ""
echo "clean: "
echo "	rm *.o core #*" 
echo ""

exit 0